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<article article-type="review-article" dtd-version="1.0" xml:lang="hr" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML">
<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">LV</journal-id>
<journal-id journal-id-type="nlm-ta">Lijec Vjesn</journal-id>
<journal-title-group>
<journal-title>Lijecnicki Vjesnik</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Lijec. Vjesn.</abbrev-journal-title>
</journal-title-group>
<issn pub-type="ppub">0024-3477</issn>
<issn pub-type="epub">1849-2177</issn>
<publisher><publisher-name>Croatian Medical Association</publisher-name></publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="publisher-id">LV-147-292</article-id>
<article-id pub-id-type="doi">10.26800/LV-147-7-8-7</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Professional paper</subject></subj-group>
</article-categories>
<title-group>
<article-title>&#x0160;kljocaju&#x0107;i lakat</article-title>
<trans-title-group xml:lang="en">
<trans-title>Snapping elbow</trans-title>
</trans-title-group>
</title-group>
<contrib-group>
<contrib contrib-type="author"><name><surname>Pobi</surname><given-names>Ivana</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Barbari&#x0107; Star&#x010D;evi&#x0107;</surname><given-names>Katarina</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Star&#x010D;evi&#x0107;</surname><given-names>Damir</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Kne&#x017E;evi&#x0107;</surname><given-names>Igor</given-names></name><xref ref-type="aff" rid="aff3"><sup>3</sup></xref></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4236-9637</contrib-id><name><surname>Bojani&#x0107;</surname><given-names>Ivan</given-names></name><xref ref-type="aff" rid="aff3"><sup>3</sup></xref><xref ref-type="aff" rid="aff4"><sup>4</sup></xref></contrib>
<aff id="aff1"><label>1</label><institution>Op&#x0107;a bolnica &#x0160;ibensko-kninske &#x017E;upanije</institution>, <addr-line>&#x0160;ibenik</addr-line></aff>
<aff id="aff2"><label>2</label><institution>Specijalna bolnica za ortopediju i traumatologiju Akromion</institution>, <addr-line>Zagreb</addr-line></aff>
<aff id="aff3"><label>3</label>Klinika za ortopediju Klini&#x010D;koga bolni&#x010D;kog centra Zagreb i Medicinskog fakulteta Sveu&#x010D;ili&#x0161;ta u Zagrebu</aff>
<aff id="aff4"><label>4</label>Medicinski fakultet Sveu&#x010D;ili&#x0161;ta u Zagrebu</aff>
</contrib-group>
<author-notes>
<corresp id="cor1">Adresa za dopisivanje: Prof. dr. sc. Ivan Bojani&#x0107;, dr. med., <ext-link ext-link-type="uri" xlink:href="https://orcid.org/0000-0002-4236-9637">https://orcid.org/0000-0002-4236-9637</ext-link>, Klinika za ortopediju Klini&#x010D;koga bolni&#x010D;kog centra Zagreb, &#x0160;alata 6/7, 10000 Zagreb, e-po&#x0161;ta: <email xlink:href="artroboj@yahoo.com">artroboj@yahoo.com</email></corresp>
<fn fn-type="con">
<p content-type="fn-title">DOPRINOS AUTORA</p>
<p>K<sc>oncepcija</sc> <sc>ili</sc> <sc>nacrt</sc> <sc>rada</sc>: IP, KBS, DS, IB</p>
<p>P<sc>rikupljanje</sc>, <sc>analiza</sc> <sc>i</sc> <sc>interpretacija</sc> <sc>podataka</sc>: IP, KBS, DS, IK, IB</p>
<p>P<sc>isanje</sc> <sc>prve</sc> <sc>verzije</sc> <sc>rada</sc>: IP, IB</p>
<p>K<sc>riti&#x010D;ka</sc> <sc>revizija</sc>: KBS, DS, IK, IB</p>
</fn>
</author-notes>
<pub-date date-type="pub" publication-format="electronic"><month>09</month><year>2025</year></pub-date>
<pub-date date-type="pub" publication-format="print"><month>09</month><year>2025</year></pub-date>
<volume>147</volume>
<issue>7-8</issue>
<fpage>292</fpage>
<lpage>302</lpage>
<permissions>
<copyright-statement>Croatian Medical Association</copyright-statement>
<copyright-year>2025</copyright-year>
<copyright-holder>Croatian Medical Association</copyright-holder>
<license xlink:href="https://creativecommons.org/licenses/by-nc-nd/4.0/" specific-use="CC BY-NC-ND 4.0"><license-p>This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (CC BY-NC-ND) 4.0 License.</license-p></license>
</permissions>
<abstract>
<title>SA&#x017D;ETAK</title>
<p>&#x0160;kljocaj prilikom pokretanja nekog zgloba posljedica je interakcije anatomskih ili heterotopi&#x010D;nih struktura. Iako je &#x0161;kljocaj primarno slu&#x0161;ni fenomen, ipak se katkada pa&#x017E;ljivom opservacijom i palpacijom mo&#x017E;e i vidjeti i opipati. &#x0160;kljocanje zgloba uglavnom ne izaziva tegobe, no povremeno je povezano s pojavom boli i/ili zna&#x010D;ajnim smanjenjem funkcije zahva&#x0107;enog ekstremiteta, &#x0161;to zahtijeva lije&#x010D;enje. Simptomatsko &#x0161;kljocanje lakta relativno je u&#x010D;estala pojava &#x010D;iji uzroci mogu biti smje&#x0161;teni unutar zgloba ili u njegovoj neposrednoj okolini. Simptomatskom &#x0161;kljocanju koje se javlja s lateralne strane lakta uzrok je uvijek unutar zgloba, dok je simptomatsko &#x0161;kljocanje s medijalne strane lakta uvijek posljedica interakcije struktura koje se nalaze izvan zgloba. U ovom su radu prikazani potencijalni uzroci pojave simptomatskog &#x0161;kljocanja u laktu te su opisane njihove karakteristi&#x010D;ne klini&#x010D;ke manifestacije. Detaljno su prikazane dijagnosti&#x010D;ke posebnosti kao i suvremene mogu&#x0107;nosti lije&#x010D;enja tih stanja.</p>
</abstract>
<trans-abstract xml:lang="en">
<title>SUMMARY</title>
<p>Snapping occurs during joint movement due to the interaction between anatomical or heterotopic structures. Although snap is primarily a sound phenomenon, it can occasionally be seen and felt during a thorough examination. Snapping joints typically do not elicit symptoms; however, they can sometimes be associated with pain and considerable functional impairment, necessitating treatment. Snapping elbow syndrome is relatively common, attributable to either intra-articular or extra-articular causes. Lateral elbow snapping syndrome consistently exhibits an intra-articular cause, whereas medial elbow snapping syndrome arises from interactions between extra-articular structures. This article summarises potential causes for snapping elbow syndrome, emphasising their distinctive clinical presentations. Furthermore, particular diagnostic and contemporary treatment methods are presented as well.</p>
</trans-abstract>
<kwd-group kwd-group-type="author"><kwd>Deskriptori LAKATNI ZGLOB &#x2013; kirurgija, patologija</kwd><kwd>ARTRALGIJA &#x2013; dijagnoza, etiologija, kirurgija</kwd><kwd>ULNARNI &#x017D;IVAC &#x2013; patologija</kwd><kwd>NESTABILNOST ZGLOBA &#x2013; dijagnoza, kirurgija</kwd><kwd>SINOVIJALNA MEMBRANA &#x2013; patologija</kwd><kwd>ZGLOBNI LIGAMNETI &#x2013; kirurgija</kwd><kwd>SINOSTOZA &#x2013; dijagnoza, kirurgija</kwd><kwd>RASPON ZGLOBNE POKRETLJIVOSTI</kwd><kwd>ARTROSKOPIJA</kwd><kwd>ULTRASONOGRAFIJA</kwd><kwd>MAGNETSKA REZONANCIJA</kwd></kwd-group>
<kwd-group kwd-group-type="translator" xml:lang="en"><title>Descriptors </title><kwd>ELBOW JOINT &#x2013; pathology, surgery</kwd><kwd>ARTHRALGIA &#x2013; diagnosis, etiology, surgery</kwd><kwd>ULNAR NERVE &#x2013; pathology</kwd><kwd>JOINT INSTABILITY &#x2013; diagnosis, surgery</kwd><kwd>SYNOVIAL MEMBRANE &#x2013; pathology</kwd><kwd>LIGAMENTS, ARTICULAR &#x2013; surgery</kwd><kwd>SYNOSTOSIS &#x2013; diagnosis, surgery</kwd><kwd>RANGE OF MOTION, ARTICULAR</kwd><kwd>ARTHROSCOPY</kwd><kwd>ULTRASONOGRAPHY</kwd><kwd>MAGNETIC RESONANCE IMAGING</kwd></kwd-group>
</article-meta>
</front>
<body>
<p>&#x0160;kljocaj je primarno slu&#x0161;ni fenomen koji mo&#x017E;e biti i opipljiv, a katkad i vidljiv. U pravilu se javlja tijekom pokretanja zgloba kao posljedica me&#x0111;udjelovanja neke anatomske ili heterotopi&#x010D;ne strukture s okolinom koja ju okru&#x017E;uje. (<xref ref-type="bibr" rid="r1"><italic>1</italic></xref>&#x2013;<xref ref-type="bibr" rid="r3"><italic>3</italic></xref>) Fenomen &#x0161;kljocanja opisan je u razli&#x010D;itim dijelovima tijela, a budu&#x0107;i da se javlja tijekom pokretanja zgloba, govorimo o &#x0161;kljocaju&#x0107;em zglobu, primjerice &#x0161;kljocaju&#x0107;em kuku. (<xref ref-type="bibr" rid="r1"><italic>1</italic></xref>&#x2013;<xref ref-type="bibr" rid="r4"><italic>4</italic></xref>) &#x0160;kljocanje uglavnom ne izaziva nikakve tegobe, a kada ih uzrokuje one su obi&#x010D;no blage i naj&#x010D;e&#x0161;&#x0107;e ne zahtijevaju lije&#x010D;enje. Me&#x0111;utim, kada je &#x0161;kljocanje povezano s pojavom boli ili zna&#x010D;ajnim smanjenjem funkcije zahva&#x0107;enog ekstremiteta, tada je nerijetko potrebno kirur&#x0161;ko lije&#x010D;enje. (<xref ref-type="bibr" rid="r1"><italic>1</italic></xref>&#x2013;<xref ref-type="bibr" rid="r4"><italic>4</italic></xref>)</p>
<p>Uzroci simptomatskog &#x0161;kljocanja pri pokretanju lakta mogu biti smje&#x0161;teni unutar zgloba ili u njegovoj neposrednoj okolini. (<xref ref-type="bibr" rid="r2"><italic>2</italic></xref>, <xref ref-type="bibr" rid="r3"><italic>3</italic></xref>) Stoga, &#x0161;kljocaju&#x0107;i lakat predstavlja izazov kako za dijagnosticiranje tako i za lije&#x010D;enje. S obzirom na polo&#x017E;aj anatomske ili heterotopi&#x010D;ne strukture koje dovode do pojave &#x0161;kljocaja uspostavljena je podjela na medijalni i lateralni tip &#x0161;kljocaju&#x0107;eg lakta. (<xref ref-type="bibr" rid="r2"><italic>2</italic></xref>, <xref ref-type="bibr" rid="r3"><italic>3</italic></xref>) Valja istaknuti da se njima uobi&#x010D;ajeno dodaje i tre&#x0107;i tip kod kojega je &#x0161;kljocaj u osnovi posljedica pomaka slobodnoga zglobnog tijela unutar zgloba. (<xref ref-type="bibr" rid="r2"><italic>2</italic></xref>, <xref ref-type="bibr" rid="r3"><italic>3</italic></xref>) Zanimljivo je istaknuti da se uzroci pojave simptomatskog &#x0161;kljocanja na lateralnoj strani lakta uvijek nalaze unutar zgloba, dok su oni koji dovode do pojave &#x0161;kljocanja na medijalnoj strani uvijek smje&#x0161;teni izvan zgloba.</p>
<p>U ovom radu &#x017E;elimo prikazati mogu&#x0107;e uzroke pojave simptomatskog &#x0161;kljocanja u laktu, kao i njihove karakteristi&#x010D;ne klini&#x010D;ke manifestacije, potom izlo&#x017E;iti adekvatne dijagnosti&#x010D;ke postupke za njihovo dijagnosticiranje te u kona&#x010D;nici predstaviti suvremene mogu&#x0107;nosti lije&#x010D;enja ovih, ipak, ne tako rijetkih stanja.</p>
<sec sec-type="other1">
<title>Uzroci &#x0161;kljocanja na medijalnoj strani lakta</title>
<sec>
<title>Hipermobilni &#x017E;ivac <italic>n. ulnaris</italic></title>
<p>U podru&#x010D;ju lakta ulnarni &#x017E;ivac prolazi kroz &#x017E;lijeb koji je smje&#x0161;ten iza medijalnog epikondila humerusa i u njemu bi trebao biti stabilan neovisno o pokretanju lakta. (<xref ref-type="bibr" rid="r5"><italic>5</italic></xref>&#x2013;<xref ref-type="bibr" rid="r7"><italic>7</italic></xref>) Ulnarni &#x017E;ivac mo&#x017E;e biti hipermobilan, tj. mo&#x017E;e prilikom fleksije od oko 90&#x00B0; iza&#x0107;i iz &#x017E;lijeba i potom se prilikom ekstenzije vratiti u njega. (<xref ref-type="bibr" rid="r5"><italic>5</italic></xref>&#x2013;<xref ref-type="bibr" rid="r9"><italic>9</italic></xref>) Ako se nakon fleksije od 90&#x00B0; &#x017E;ivac pomakne iz &#x017E;lijeba na medijalni epikondil humerusa, govorimo o subluksaciji &#x017E;ivca, a ako presko&#x010D;i preko njega u prednji dio lakta govorimo o luksaciji. (<xref ref-type="bibr" rid="r5"><italic>5</italic></xref>&#x2013;<xref ref-type="bibr" rid="r9"><italic>9</italic></xref>) Hipermobilni ulnarni &#x017E;ivac u najve&#x0107;em broju slu&#x010D;ajeva ne uzrokuje nikakve tegobe osim osjeta preskoka, ipak trenje koje se javlja pri ponavljanim subluksacijama ili luksacijama &#x017E;ivca mo&#x017E;e dovesti do iritacije i posljedi&#x010D;nog razvoja sindroma kubitalnog kanala. (<xref ref-type="bibr" rid="r5"><italic>5</italic></xref>&#x2013;<xref ref-type="bibr" rid="r9"><italic>9</italic></xref>) Calfee i suradnici (<xref ref-type="bibr" rid="r10"><italic>10</italic></xref>) su klini&#x010D;kim pregledom 200 zdravih dobrovoljaca utvrdili hipermobilni ulnarni &#x017E;ivac u 37% slu&#x010D;ajeva (148 od 400), od kojih je u 30% ispitanika utvr&#x0111;en na obje ruke. Vrlo sli&#x010D;an rezultat dobiven je ultrazvu&#x010D;nim pregledom zdravih dobrovoljaca. (<xref ref-type="bibr" rid="r11"><italic>11</italic></xref>, <xref ref-type="bibr" rid="r12"><italic>12</italic></xref>) Okamoto i suradnici (<xref ref-type="bibr" rid="r11"><italic>11</italic></xref>) su izvijestili da su hipermobilni ulnarni &#x017E;ivac dijagnosticirali u 47% slu&#x010D;ajeva, uz napomenu da je u 27% rije&#x010D; bila o subluksaciji &#x017E;ivca, dok su Ozturk i suradnici (<xref ref-type="bibr" rid="r12"><italic>12</italic></xref>) izvijestili da su ga dijagnosticirali u 32% slu&#x010D;ajeva te da je u 23% slu&#x010D;ajeva rije&#x010D; bila o subluksaciji.</p>
<p>Do nastanka subluksacije i luksacije ulnarnog &#x017E;ivca mo&#x017E;e do&#x0107;i zbog nekih anatomskih varijacija u podru&#x010D;ju lakta, u prvom redu zbog plitkog &#x017E;lijeba ulnarnog &#x017E;ivca te zbog aplazije ili hipoplazije Osborneovog ligamenta. (<xref ref-type="bibr" rid="r5"><italic>5</italic></xref>&#x2013;<xref ref-type="bibr" rid="r9"><italic>9</italic></xref>) Michelin i suradnici (<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>) su u svom istra&#x017E;ivanju provedenom na 40 zdravih dobrovoljaca ultrazvu&#x010D;no utvrdili potpunu odsutnost Osborneovog ligamenta na svim laktovima (11 od 80 ispitanih, 13,7%) na kojima su dijagnosticirali hipermobilni ulnarni &#x017E;ivac. Osim toga, ponudili su i obja&#x0161;njenje kako u slu&#x010D;aju odsutnosti tog ligamenta nastaje hipermobilni ulnarni &#x017E;ivac. Naime, Osborneov ligament i stra&#x017E;nji snop medijalnoga kolateralnog ligamenta lakta pona&#x0161;aju se na identi&#x010D;an na&#x010D;in tijekom pokretanja lakta pa se tako napinju u fleksiji, a opu&#x0161;taju u ekstenziji. Stra&#x017E;nji snop medijalnoga kolateralnog ligamenta &#x010D;ini dno kubitalnog kanala i budu&#x0107;i da se tijekom fleksije lakta napinje, pri fleksiji od 90&#x00B0; odmi&#x010D;e ulnarni &#x017E;ivac s dna kanala. Ako je prisutna aplazija ili hipoplazija Osborneovog ligamenta, nedostaje struktura koja &#x0107;e zadr&#x017E;ati ulnarni &#x017E;ivac da ne krene na medijalni epikondil ili preko njega. (<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>) Valja istaknuti da nastanak subluksacije ili luksacije ulnarnog &#x017E;ivca mo&#x017E;e biti i posljedica drugih stanja, u prvom redu preskoka medijalne glave tricepsa te preskoka brahijalisa. (<xref ref-type="bibr" rid="r5"><italic>5</italic></xref>&#x2013;<xref ref-type="bibr" rid="r9"><italic>9</italic></xref>)</p>
<p>Klini&#x010D;ki pregled bolesnika kod kojega se sumnja na hipermobilni ulnarni &#x017E;ivac uvijek valja zapo&#x010D;eti tako da ga se zatra&#x017E;i da aktivno flektira i ekstendira lakat i tijekom tih kretnji treba pratiti pona&#x0161;anje struktura s medijalne strane lakta, a potom palpacijom valja poku&#x0161;ati identificirati medijalni epikondil pa ulnarni &#x017E;ivac. Nakon toga valja zatra&#x017E;iti od bolesnika da postavi lakat u maksimalno izvodivu fleksiju s podlakticom u polo&#x017E;aju supinacije. Ispitiva&#x010D; u tom polo&#x017E;aju postavlja svoj prst na medijalni epikondil humerusa i potom zatra&#x017E;i od bolesnika da ispru&#x017E;i lakat. U slu&#x010D;aju da je rije&#x010D; o luksaciji ulnarnog &#x017E;ivca ispitiva&#x010D; &#x0107;e prilikom zapo&#x010D;injanja kretnje osjetiti &#x017E;ivac iznad svoga prsta, dok &#x0107;e u slu&#x010D;aju da je rije&#x010D; o subluksaciji &#x017E;ivca osjetiti &#x017E;ivac ispod svog prsta na medijalnom epikondilu (<xref ref-type="fig" rid="f1">Figure 1</xref>).</p>
<fig id="f1" position="float" fig-type="figure"><label>Figure 1</label><caption><p>Ulnar nerve hypermobility. A) the ulnar nerve is situated within the cubital tunnel when elbow flexion is less than 70&#x00B0;; B) exceeding an angle of 90&#x00B0; in elbow flexion results in the anterior displacement of the ulnar nerve above the medial humeral epicondyle, as indicated by the circle.</p></caption><graphic xlink:href="LV-147-292-f1"></graphic></fig>
<p>Subluksacija ili luksacija ulnarnog &#x017E;ivca potvr&#x0111;uje se u pravilu dinami&#x010D;kim ultrazvukom (u daljnjem tekstu UZV), a samo iznimno je potrebno na&#x010D;initi i dinami&#x010D;ku magnetsku rezonanciju (u daljnjem tekstu MR). (<xref ref-type="bibr" rid="r9"><italic>9</italic></xref>, <xref ref-type="bibr" rid="r14"><italic>14</italic></xref>) Elektromioneurografija (u daljnjem tekstu EMNG) je indicirana kada su prisutni simptomi koji upu&#x0107;uju na razvoj sindroma kubitalnog kanala. (<xref ref-type="bibr" rid="r5"><italic>5</italic></xref>&#x2013;<xref ref-type="bibr" rid="r9"><italic>9</italic></xref>)</p>
<p>U bolesnika koji imaju razvijene blage ili umjerene simptome sindroma kubitalnog kanala lije&#x010D;enje valja zapo&#x010D;eti konzervativnim na&#x010D;inom kojemu je osnova izbjegavanje aktivnosti koje zahtijevaju fleksiju lakta ve&#x0107;u od 70&#x00B0;. (<xref ref-type="bibr" rid="r9"><italic>9</italic></xref>) Katkad se u tim slu&#x010D;ajevima koristi i ortoza za lakat koja onemogu&#x0107;uje fleksiju ve&#x0107;u od 70&#x00B0;. U slu&#x010D;aju perzistencije simptoma usprkos provedenom lije&#x010D;enju, kao i u slu&#x010D;ajevima bolnog preskoka, indicirano je kirur&#x0161;ko lije&#x010D;enje. Koriste se dvije metode s podjednako dobrim ishodima lije&#x010D;enja, i to ili antepozicija ulnarnog &#x017E;ivca ili medijalna epikondilektomija. (<xref ref-type="bibr" rid="r9"><italic>9</italic></xref>)</p>
</sec>
<sec>
<title>Preskok medijalne glave mi&#x0161;i&#x0107;a, <italic>m. triceps brachii</italic></title>
<p>Do preskoka medijalne glave mi&#x0161;i&#x0107;a, <italic>m. triceps brachii</italic> preko medijalnog epikondila humerusa dolazi tijekom aktivne fleksije lakta kada lakat dosegne fleksiju od oko 115&#x00B0;, a mo&#x017E;e se javiti i prilikom ekstenzije ve&#x0107; flektiranog lakta. (<xref ref-type="bibr" rid="r15"><italic>15</italic></xref>&#x2013;<xref ref-type="bibr" rid="r18"><italic>18</italic></xref>) Ovo stanje je rijetko i &#x010D;esto ostaje neprepoznato, a opisao ga je Rolfsen (<xref ref-type="bibr" rid="r15"><italic>15</italic></xref>) 1970. godine. Naj&#x010D;e&#x0161;&#x0107;e se uo&#x010D;ava u mu&#x0161;karaca u tre&#x0107;em desetlje&#x0107;u &#x017E;ivota. (<xref ref-type="bibr" rid="r16"><italic>16</italic></xref>&#x2013;<xref ref-type="bibr" rid="r18"><italic>18</italic></xref>) Iako se preskok naj&#x010D;e&#x0161;&#x0107;e osjeti na oba lakta, simptomi su obi&#x010D;no izra&#x017E;eniji na dominantnoj ruci. (<xref ref-type="bibr" rid="r16"><italic>16</italic></xref>&#x2013;<xref ref-type="bibr" rid="r18"><italic>18</italic></xref>) Pojavi preskoka medijalne glave tricepsa pridonose neke anatomske varijacije tog mi&#x0161;i&#x0107;a, primjerice neuobi&#x010D;ajeno hvati&#x0161;te medijalne glave mi&#x0161;i&#x0107;a ili pak postojanje &#x010D;etvrtog trbuha mi&#x0161;i&#x0107;a koji se ve&#x017E;e na medijalni dio olekranona. (<xref ref-type="bibr" rid="r19"><italic>19</italic></xref>) Osim toga, i anatomske varijacije drugih struktura u podru&#x010D;ju lakta poput hipoplazije medijalnog epikondila, plitkog &#x017E;lijeba za ulnarni &#x017E;ivac i varus polo&#x017E;aja lakta mogu uzrokovati taj preskok. (<xref ref-type="bibr" rid="r16"><italic>16</italic></xref>&#x2013;<xref ref-type="bibr" rid="r18"><italic>18</italic></xref>, <xref ref-type="bibr" rid="r20"><italic>20</italic></xref>) No, ipak naj&#x010D;e&#x0161;&#x0107;i uzrok preskoka jest hipertrofija mi&#x0161;i&#x0107;a tricepsa nastala zbog radnih i/ili sportskih aktivnosti. (<xref ref-type="bibr" rid="r16"><italic>16</italic></xref>&#x2013;<xref ref-type="bibr" rid="r18"><italic>18</italic></xref>)</p>
<p>Preskok medijalne glave tricepsa uzrokuje &#x0161;kljocaj koji mo&#x017E;e biti bezbolan, ali mo&#x017E;e uzrokovati i blagu nelagodu ili pak pojavu boli s medijalne strane lakta. (<xref ref-type="bibr" rid="r15"><italic>15</italic></xref>&#x2013;<xref ref-type="bibr" rid="r18"><italic>18</italic></xref>) Valja istaknuti da se bol javlja povremeno i to obi&#x010D;no samo tijekom radnih i/ili sportskih aktivnosti. No, ako tijekom vremena taj preskok izazove iritaciju ulnarnog &#x017E;ivca ili ako pak osoba ima i pridru&#x017E;eni preskok ulnarnog &#x017E;ivca, javit &#x0107;e se i simptomi sindroma kubitalnog kanala. (<xref ref-type="bibr" rid="r21"><italic>21</italic></xref>)</p>
<p>Tijekom klini&#x010D;kog pregleda, dok bolesnik aktivno flektira lakat ili to &#x010D;ini protiv otpora, palpira se, a katkad i vidi, preskok medijalne glave tricepsa do kojega dolazi pri 115&#x00B0; fleksije. Kako bi se potvrdilo da je uzrok preskoka medijalna glava tricepsa, a ne ulnarni &#x017E;ivac, ispitiva&#x010D; mora u potpunoj ekstenziji lakta prstom jedne ruke palpirati ulnarni &#x017E;ivac u njegovu &#x017E;lijebu i potom ne odmi&#x010D;u&#x0107;i prst sa &#x017E;ivca pasivno flektirati lakat prate&#x0107;i pritom njegovo pona&#x0161;anje. Valja istaknuti da &#x0107;e se, ako osoba ima i pridru&#x017E;eni preskok ulnarnog &#x017E;ivca, prilikom aktivne fleksije lakta javiti dva preskoka. Pri tome prvi preskok odgovara preskoku ulnarnog &#x017E;ivca i javlja se pri fleksiji lakta izme&#x0111;u 70&#x00B0; i 90&#x00B0;, dok je drugi preskok posljedica preskoka medijalne glave tricepsa i to kada lakat dosegne fleksiju od oko 115&#x00B0;. (<xref ref-type="bibr" rid="r21"><italic>21</italic></xref>)</p>
<p>U dijagnosti&#x010D;koj obradi bolesnika sa sumnjom na preskok medijalne glave tricepsa koriste se dinami&#x010D;ki UZV i dinami&#x010D;ka MR. (<xref ref-type="bibr" rid="r14"><italic>14</italic></xref>) Ako je prisutna i simptomatologija sindroma kubitalnog kanala potrebno je na&#x010D;initi i EMNG.</p>
<p>Kada preskok medijalne glave tricepsa izaziva simptome savjetuje se zapo&#x010D;eti konzervativnim lije&#x010D;enjem kojemu je osnova izbjegavanje ponavljaju&#x0107;ih radnih i/ili sportskih aktivnosti koje dovode do bolnog preskoka, a uz to se mogu primjenjivati nesteroidni protuupalni lijekovi i ortoza za lakat koja onemogu&#x0107;uje fleksiju ve&#x0107;u od 70&#x00B0;. (<xref ref-type="bibr" rid="r16"><italic>16</italic></xref>&#x2013;<xref ref-type="bibr" rid="r18"><italic>18</italic></xref>) Ako bolesniku tegobe ustraju indicirano je kirur&#x0161;ko lije&#x010D;enje. Metoda kirur&#x0161;kog lije&#x010D;enja ovisi u prvom redu o uzroku zbog kojega nastaje preskok. (<xref ref-type="bibr" rid="r20"><italic>20</italic></xref>&#x2013;<xref ref-type="bibr" rid="r25"><italic>25</italic></xref>) Tako je primjerice u slu&#x010D;ajevima u kojima je preskok posljedica varusnog polo&#x017E;aja lakta potrebno u&#x010D;initi korektivnu osteotomiju distalnog dijela humerusa kako bi se uspostavila normalna osovina lakta i time ispravio i tijek mi&#x0161;i&#x0107;a tricepsa. (<xref ref-type="bibr" rid="r20"><italic>20</italic></xref>) U slu&#x010D;ajevima kada je preskok posljedica neke anatomske varijacije tricepsa tada se kirur&#x0161;kim lije&#x010D;enjem ili odstrani dio medijalne glave mi&#x0161;i&#x0107;a tricepsa ili se, ako je taj dio velik, odvoji s hvati&#x0161;ta na olekranonu i premjesti se lateralnije, i to naj&#x010D;e&#x0161;&#x0107;e tako &#x0161;to se provu&#x010D;e ispod tetive kroz uzdu&#x017E;no rascijepljenu tetivu tricepsa, i u&#x010D;vrsti na srednji dio olekranona. (<xref ref-type="bibr" rid="r21"><italic>21</italic></xref>&#x2013;<xref ref-type="bibr" rid="r25"><italic>25</italic></xref>) Ako uz preskok medijalne glave mi&#x0161;i&#x0107;a tricepsa bolesnik ima i razvijenu simptomatologiju sindroma kubitalnog kanala, i to bez obzira preska&#x010D;e li pritom i ulnarni &#x017E;ivac ili ne, potrebno je uvijek uz zahvat na medijalnoj glavi tricepsa premjestiti &#x017E;ivac u novo le&#x017E;i&#x0161;te ispred i iznad medijalnog epikondila, tj. na&#x010D;initi tzv. antepoziciju ulnarnog &#x017E;ivca. (<xref ref-type="bibr" rid="r21"><italic>21</italic></xref>&#x2013;<xref ref-type="bibr" rid="r25"><italic>25</italic></xref>)</p>
<sec>
<title><italic>Preskok stra&#x017E;nje grane &#x017E;ivca,</italic> n. cutaneus antebrachii medialis</title>
<p>Na anteromedijalnoj strani lakta i to iznad <italic>lacertusa fibrosusa</italic>, a ispod povr&#x0161;inskih vena, osjetni se &#x017E;ivac, <italic>n. cutaneus antebrachii medialis</italic> (u daljnjem tekstu NCAM) dijeli na dvije grane, prednju i stra&#x017E;nju koja se naziva jo&#x0161; i <italic>ramus ulnaris</italic>. Iako su opisane brojne varijacije, uobi&#x010D;ajeno je da stra&#x017E;nja grana prelazi blizu ili pak izravno preko medijalnog epikondila. U literaturi su opisana &#x010D;etiri slu&#x010D;aja preskoka te grane koja su uo&#x010D;ena tijekom operacijskih zahvata. (<xref ref-type="bibr" rid="r26"><italic>26</italic></xref>) U tri slu&#x010D;aja zahvat je &#x010D;injen zbog preskoka medijalne glave tricepsa koji je doveo do razvoja simptoma sindroma kubitalnog kanala, dok je &#x010D;etvrti bolesnik operiran zbog tupe boli koja se pru&#x017E;ala du&#x017E; medijalne strane podlaktice u prstenjak i mali prst i koja se pogor&#x0161;avala prilikom fleksije lakta. (<xref ref-type="bibr" rid="r26"><italic>26</italic></xref>)</p>
<p>Valja istaknuti da niti u jednom opisanom prikazu slu&#x010D;aja simptomi nisu bili isklju&#x010D;ivo rezultat preskoka stra&#x017E;nje grane NCAM-a. (<xref ref-type="bibr" rid="r26"><italic>26</italic></xref>) No, u svih je opisanih bolesnika tijekom operacijskog zahvata zamije&#x0107;en preskok stra&#x017E;nje grane NCAM-a prilikom fleksije u laktu izme&#x0111;u 70&#x00B0; i 100&#x00B0;. (<xref ref-type="bibr" rid="r26"><italic>26</italic></xref>)</p>
<p>Od dijagnosti&#x010D;kih metoda od najve&#x0107;e je koristi dinami&#x010D;ki UZV koji je potrebno izvoditi pa&#x017E;ljivo zbog nje&#x017E;ne strukture &#x017E;ivca NCAM i posljedi&#x010D;no njegove slabije uo&#x010D;ljivosti.</p>
<p>Tijekom operacijskih zahvata, kada je uo&#x010D;en preskok stra&#x017E;nje grane NCAM-a, na&#x010D;inila se uz antepoziciju ulnarnog &#x017E;ivca i/ili resekcija medijalne glave mi&#x0161;i&#x0107;a tricepsa, dekompresija te grane NCAM-a i njegova transpozicija. (<xref ref-type="bibr" rid="r26"><italic>26</italic></xref>)</p>
</sec>
</sec>
<sec>
<title>&#x0160;kljocaju&#x0107;i mi&#x0161;i&#x0107;, <italic>m. brachialis</italic></title>
<p>Medijalni rub mi&#x0161;i&#x0107;a <italic>m. brachialis</italic> smje&#x0161;ten je uz medijalni rub trohleje humerusa i uobi&#x010D;ajeno ju ne prelazi tijekom fleksije i ekstenzije lakta. No, ako se tijekom fleksije lakta, i to kada je podlaktica u supinaciji, medijalni dio mi&#x0161;i&#x0107;a pomakne tako da le&#x017E;i medijalno od medijalnog ruba trohleje humerusa, onda &#x0107;e se tijekom ekstenzije lakta vratiti u normalan polo&#x017E;aj, &#x0161;to &#x0107;e biti pra&#x0107;eno bolnim i &#x010D;ujnim, a &#x010D;esto i vidljivim &#x0161;kljocajem. (<xref ref-type="bibr" rid="r27"><italic>27</italic></xref>&#x2013;<xref ref-type="bibr" rid="r30"><italic>30</italic></xref>) &#x0160;kljocaju&#x0107;i brahijalis se javlja ili spontano bez jasnog uzroka ili nakon traume, a osim toga bolnog preskoka nema drugih simptoma. (<xref ref-type="bibr" rid="r27"><italic>27</italic></xref>&#x2013;<xref ref-type="bibr" rid="r30"><italic>30</italic></xref>)</p>
<p>Dinami&#x010D;ki UZV je najkorisnija dijagnosti&#x010D;ka metoda za potvrdu ovog stanja, a od pomo&#x0107;i pri dijagnostici mo&#x017E;e biti i MR lakta. (<xref ref-type="bibr" rid="r14"><italic>14</italic></xref>, <xref ref-type="bibr" rid="r31"><italic>31</italic></xref>)</p>
<p>Lije&#x010D;enje treba uvijek zapo&#x010D;eti izbjegavanjem ponavljaju&#x0107;ih radnih i/ili sportskih aktivnosti koje dovode do bolnog preskoka. (<xref ref-type="bibr" rid="r27"><italic>27</italic></xref>&#x2013;<xref ref-type="bibr" rid="r30"><italic>30</italic></xref>) U slu&#x010D;aju da tegobe ustraju savjetuje se kirur&#x0161;ko lije&#x010D;enje tijekom kojega se mora odstraniti medijalni dio mi&#x0161;i&#x0107;a koji tijekom kretnje fleksije i ekstenzije u laktu prelazi preko medijalnog ruba trohleje humerusa. (<xref ref-type="bibr" rid="r27"><italic>27</italic></xref>&#x2013;<xref ref-type="bibr" rid="r30"><italic>30</italic></xref>)</p>
</sec>
<sec>
<title>Varus deformacija lakta</title>
<p>Ako su prisutni normalni anatomski odnosi na gornjem ekstremitetu, tada uzdu&#x017E;ne osi nadlaktice i podlaktice &#x010D;ine kut koji je otvoren prema lateralno pa govorimo o fiziolo&#x0161;kom valgusnom polo&#x017E;aju lakta. O varus deformaciji lakta (lat. <italic>cubitus varus</italic>) govorimo kad je prisutno medijalno odstupanje usmjerenja uzdu&#x017E;ne osi podlaktice u odnosu na uzdu&#x017E;nu os nadlaktice. Varus lakta uobi&#x010D;ajeno nastaje nakon traume i to naj&#x010D;e&#x0161;&#x0107;e nakon suprakondilarnog prijeloma humerusa u dje&#x010D;joj dobi, a samo iznimno je priro&#x0111;en. (<xref ref-type="bibr" rid="r32"><italic>32</italic></xref>, <xref ref-type="bibr" rid="r33"><italic>33</italic></xref>) Iako se isti&#x010D;e da je vode&#x0107;i problem estetske prirode, ipak valja spomenuti komplikacije do kojih mo&#x017E;e dovesti ta deformacija lakta, a to su ograni&#x010D;enje pokretljivosti lakta, sekundarni prijelomi lateralnog kondila humerusa, degenerativne promjene zgloba lakta, simptomatska posterolateralna rotatorna nestabilnost lakta te preskok medijalne glave tricepsa koja s vremenom mo&#x017E;e dovesti do subluksacije ulnarnog &#x017E;ivca i posljedi&#x010D;nog nastanka sindroma kubitalnog kanala. (<xref ref-type="bibr" rid="r32"><italic>32</italic></xref>&#x2013;<xref ref-type="bibr" rid="r35"><italic>35</italic></xref>)</p>
<p>Varus deformacija lakta pri klini&#x010D;kom pregledu najbolje &#x0107;e se uo&#x010D;iti ako se od bolesnika zatra&#x017E;i da obje ruke ispru&#x017E;i u laktu i postavi ih uz tijelo tako da su dlanovi usmjereni prema naprijed.</p>
<p>Da bi se dokazalo da je rije&#x010D; o poreme&#x0107;enim anatomskim odnosima lakta valja na&#x010D;initi rendgensko snimanje lakta (u daljnjem tekstu RTG) u dvjema projekcijama i to tako da je za vrijeme snimanja lakat u potpunosti ispru&#x017E;en s podlakticom u supiniranom polo&#x017E;aju. (<xref ref-type="bibr" rid="r32"><italic>32</italic></xref>&#x2013;<xref ref-type="bibr" rid="r35"><italic>35</italic></xref>) Ovisno o simptomima i potrebnom daljnjem lije&#x010D;enju mo&#x017E;e se na&#x010D;initi i ra&#x010D;unalna tomografija (u daljnjem tekstu CT), odnosno dinami&#x010D;ki UZV i MR te EMNG. (<xref ref-type="bibr" rid="r32"><italic>32</italic></xref>&#x2013;<xref ref-type="bibr" rid="r35"><italic>35</italic></xref>)</p>
<p>Ako varus deformacija lakta ne uzrokuje tegobe savjetuje se redovito pra&#x0107;enje bolesnika, a ako predstavlja estetski problem mo&#x017E;e se na&#x010D;initi korektivna osteotomija distalnog dijela humerusa s ciljem ispravljanja deformacije. (<xref ref-type="bibr" rid="r36"><italic>36</italic></xref>) Ovisno o simptomima provodi se i drugo kirur&#x0161;ko lije&#x010D;enje, primjerice antepozicija ulnarnog &#x017E;ivca. (<xref ref-type="bibr" rid="r36"><italic>36</italic></xref>)</p>
</sec>
</sec>
<sec sec-type="other2">
<title>Uzroci &#x0161;kljocanja na lateralnoj strani lakta</title>
<sec>
<title>Sindrom sinovijskog nabora lakta</title>
<p>Clarke (<xref ref-type="bibr" rid="r37"><italic>37</italic></xref>) je 1988. godine dokazao da sinovijski nabor (lat. <italic>plica synovialis</italic>) mo&#x017E;e biti uzrokom pojave boli i/ili bolnog &#x0161;kljocaja u laktu, a to stanje je nazvao sindromom sinovijskog nabora lakta. Sinovijski je nabor ostatak mezenhimalnog tkiva koje formira septum koji dijeli zglob u odjeljke tijekom fetalnog razvoja, a koje se spontano smanjuje i/ili nestaje u drugome trimestru trudno&#x0107;e. Nakon traume lakta ili, &#x010D;e&#x0161;&#x0107;e, zbog ponavljaju&#x0107;ih mikrotrauma sinovijski nabori mogu zadebljati i fibrozirati, &#x010D;ak i kalcificirati, pa vi&#x0161;e ne klize glatko po povr&#x0161;ini zglobnih tijela, ve&#x0107; se utiskuju izme&#x0111;u njih, &#x0161;to dovodi do pojave boli koja mo&#x017E;e biti pra&#x0107;ena &#x0161;kljocajem i/ili blokadom pokreta. (<xref ref-type="bibr" rid="r37"><italic>37</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>) Na mjestima tog sraza mo&#x017E;e s vremenom nastati i hrskavi&#x010D;no o&#x0161;te&#x0107;enje. Iako se u literaturi ne nalazi jedinstven stav oko nazivlja i anatomske lokalizacije sinovijskih nabora u laktu, ipak se naj&#x010D;e&#x0161;&#x0107;e rabi podjela Cerezala i suradnika (<xref ref-type="bibr" rid="r41"><italic>41</italic></xref>) iz 2012. godine na prednji, lateralni i posterolateralni nabor te nabor uz lateralni rub olekranona. Gotovo u svih ljudi prisutan je posterolateralni nabor, &#x0161;to potvr&#x0111;uju rezultati provedenih istra&#x017E;ivanja prema kojima se taj nabor na MR-u mo&#x017E;e identificirati u 92 &#x2013; 98% asimptomatskih osoba. (<xref ref-type="bibr" rid="r42"><italic>42</italic></xref>, <xref ref-type="bibr" rid="r43"><italic>43</italic></xref>) I rezultati istra&#x017E;ivanja provedenih na kadaverima potvr&#x0111;uju da se posterolateralni nabor naj&#x010D;e&#x0161;&#x0107;e nalazi i to u 86 &#x2013; 100% slu&#x010D;ajeva, dok se prednji nalazi u 67%, lateralni u 5 &#x2013; 20%, a nabor uz lateralni rub olekranona u 28 &#x2013; 33%. (<xref ref-type="bibr" rid="r38"><italic>38</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>) Prema rezultatima sistematskog pregleda literature koji su na&#x010D;inili Kholinne i suradnici (<xref ref-type="bibr" rid="r39"><italic>39</italic></xref>) 2021. godine, prevalencija sinovijskih nabora u laktu u asimptomatskih osoba je 77%, odnosno 97% u simptomatskih.</p>
<p>Uzrok nastanka sindroma sinovijskog nabora lakta u najve&#x0107;em broju slu&#x010D;ajeva jest posterolateralni nabor. (<xref ref-type="bibr" rid="r38"><italic>38</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>) Sindrom sinovijskog nabora lakta javlja se na dominantnoj ruci sportski aktivnih mladih ljudi i to onih koji se bave sportskim aktivnostima u kojima je dominantna ponavljaju&#x0107;a kretnja rukom, primjerice tenisom, bejzbolom, atletskim baca&#x010D;kim disciplinama, vaterpolom i rukometom. (<xref ref-type="bibr" rid="r38"><italic>38</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>) No, &#x010D;esto se susre&#x0107;e i u osoba srednje &#x017E;ivotne dobi i to u prvom redu u onih koji se bave manualnim radom, bilo da je rije&#x010D; o fizi&#x010D;kom radu, bilo o radu na ra&#x010D;unalima. (<xref ref-type="bibr" rid="r38"><italic>38</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>)</p>
<p>Sindrom sinovijskog nabora o&#x010D;ituje se pojavom boli u lateralnom ili posterolateralnom dijelu lakta koja je u polovini slu&#x010D;ajeva pra&#x0107;ena i pojavom &#x0161;kljocaja tijekom pokretanja lakta. (<xref ref-type="bibr" rid="r38"><italic>38</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>) Ako je prisutan &#x0161;kljocaj, on mo&#x017E;e biti i bolan, a naj&#x010D;e&#x0161;&#x0107;e se javlja u rasponu izme&#x0111;u 80&#x00B0; i 100&#x00B0; fleksije lakta. (<xref ref-type="bibr" rid="r38"><italic>38</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>) Osim toga, bolesnici se &#x010D;esto &#x017E;ale i na osje&#x0107;aj &#x201E;zaklju&#x010D;avanja&#x201C; zgloba tijekom izvo&#x0111;enja pokreta, a katkad i na pravu blokadu kretnje. S vremenom se, i to u oko tre&#x0107;ine bolesnika, razvija i kontraktura lakta, tj. bolesnici ne mogu potpuno ispru&#x017E;iti lakat i naj&#x010D;e&#x0161;&#x0107;e im nedostaje izme&#x0111;u 5&#x00B0; i 20&#x00B0; do njegovog potpunog ispru&#x017E;anja. (<xref ref-type="bibr" rid="r38"><italic>38</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>)</p>
<p>Prilikom klini&#x010D;kog pregleda bol se osim na palpaciju posterolateralnog dijela zglobne pukotine humeroradijalnog zgloba javlja i kada bolesnik poku&#x0161;ava potpuno ispru&#x017E;iti lakat protiv otpora koji pru&#x017E;a ispitiva&#x010D;. (<xref ref-type="bibr" rid="r38"><italic>38</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>) Opisani su i neki klini&#x010D;ki testovi koji mogu pomo&#x0107;i prilikom dijagnosticiranja ovog sindroma, a svima je karakteristi&#x010D;no da ispitiva&#x010D; pritisne palcem u posterolateralni dio humeroradijalnog zgloba, u tzv. mekanu udubinu (engl. <italic>soft spot</italic>) i da onda pasivnim pokretanjem lakta ili izazove ili pak smanji bol, odnosno preskok. Tako su primjerice Antuna i O&#x2019;Driscoll (<xref ref-type="bibr" rid="r44"><italic>44</italic></xref>) opisali test fleksije i pronacije tijekom kojega se iz ispru&#x017E;enog polo&#x017E;aja s podlakticom u pronaciji pasivno flektira lakat pa se izme&#x0111;u 90&#x00B0; i 110&#x00B0; fleksije osjeti, a katkad i &#x010D;uje preskok (<xref ref-type="fig" rid="f2">Figure 2</xref>). Park i suradnici (<xref ref-type="bibr" rid="r45"><italic>45</italic></xref>) su opisali tzv. test posterolateralne radiokapitelarne plike koji se izvodi na isti na&#x010D;in kao test fleksije i pronacije, ali oni navode da se test smatra pozitivnim kada se bol koja se osjeti odmah na po&#x010D;etku smanji ili potpuno nestane nakon &#x0161;to se lakat flektira preko 90&#x00B0;. Ruch i suradnici (<xref ref-type="bibr" rid="r46"><italic>46</italic></xref>) su opisali test ekstenzije i supinacije tijekom kojega se iz flektiranog polo&#x017E;aja s podlakticom u supinaciji pasivno ekstendira lakat pa se u terminalnoj ekstenziji osjeti preskok.</p>
<fig id="f2" position="float" fig-type="figure"><label>Figure 2</label><caption><p>The flexion pronation test is utilised for the diagnosis of elbow synovial plica syndrome: A) the patient&#x2019;s arm is completely extended and in a supinated position, while the examiner&#x2019;s thumb palpates the soft spot of the elbow; B) firstly, the examiner passively pronates the patient&#x2019;s forearm; C) then the examiner flexes the patient&#x2019;s elbow to elicit either a snapping sensation or pain within the flexion range of 90 to 110&#x00B0;.</p></caption><graphic xlink:href="LV-147-292-f2"></graphic></fig>
<p>Prvi i najva&#x017E;niji korak u postavljanju dijagnoze sindroma sinovijskog nabora lakta jest posumnjati na njega nakon iscrpno uzete anamneze i detaljno na&#x010D;injenoga klini&#x010D;kog pregleda. Naime, simptomi sindroma sinovijskog nabora lakta nisu specifi&#x010D;ni i mogu opona&#x0161;ati neka druga stanja. Tako primjerice u adolescenata i mladih ljudi treba uvijek pomisliti na osteohondritis disekans kapituluma humerusa, kao i na mogu&#x0107;nost da su simptomi uzrokovani slobodnim zglobnim tijelom. (<xref ref-type="bibr" rid="r47"><italic>47</italic></xref>) S druge strane, u osoba srednje &#x017E;ivotne dobi valja u prvom redu pomisliti na po&#x010D;etne degenerativne promjene, odnosno na posterolateralnu nestabilnost ako u anamnezi ima podataka o ozljedi tog lakta. No, u toj je skupini najte&#x017E;e razlikovati sindrom sinovijskog nabora lakta od lateralnog epikondilitisa, a valja istaknuti da ta dva stanja mogu i koegzistirati. (<xref ref-type="bibr" rid="r46"><italic>46</italic></xref>) Danas je MR zlatni standard za potvrdu sindroma sinovijskog nabora i to napose ako se prilikom pretrage primjeni kontrast (<xref ref-type="fig" rid="f3">Figure 3</xref>). (<xref ref-type="bibr" rid="r38"><italic>38</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>) Od pomo&#x0107;i u dijagnostici mo&#x017E;e biti i dinami&#x010D;ki UZV. (<xref ref-type="bibr" rid="r38"><italic>38</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>)</p>
<fig id="f3" position="float" fig-type="figure"><label>Figure 3</label><caption><p>Sagittal proton density-fat saturated magnetic resonance projection of the elbow. The synovial plica of the elbow, which is indicated by an arrow, is located between the head of the radius and the humeral capitulum.</p></caption><graphic xlink:href="LV-147-292-f3"></graphic></fig>
<p>Lije&#x010D;enje sindroma sinovijskog nabora lakta uvijek valja zapo&#x010D;eti odmorom i po&#x0161;tedom od svih provociraju&#x0107;ih sportskih i/ili radnih aktivnosti. Od pomo&#x0107;i mogu biti i neke od procedura fizikalne terapije koje imaju za cilj uspostaviti potpun opseg pokreta te primjena nesteroidnih protuupalnih lijekova. (<xref ref-type="bibr" rid="r38"><italic>38</italic></xref>&#x2013;<xref ref-type="bibr" rid="r40"><italic>40</italic></xref>) U slu&#x010D;aju perzistiranja simptoma indicirano je kirur&#x0161;ko lije&#x010D;enje koje se danas uglavnom &#x010D;ini artroskopski i tijekom kojega valja odstraniti sinovijski nabor (<xref ref-type="fig" rid="f4">Figure 4</xref>). (<xref ref-type="bibr" rid="r48"><italic>48</italic></xref>&#x2013;<xref ref-type="bibr" rid="r50"><italic>50</italic></xref>)</p>
<fig id="f4" position="float" fig-type="figure"><label>Figure 4</label><caption><p>Intraoperative images pertaining to the arthroscopic removal of the synovial plica: A) an intraoperative image of the anterior humeroradial joint, taken from the proximal anteromedial portal, depicts the synovial plica marked with an arrow; B) an intraoperative image of the posterior humeroradial joint taken from the posterolateral portal depicts the removal of the synovial plica with a motorised arthroscopic instrument introduced through the direct lateral portal.</p></caption><graphic xlink:href="LV-147-292-f4"></graphic></fig>
<p>Prema rezultatu sistematskog pregleda literature koji su proveli Jeon i suradnici (<xref ref-type="bibr" rid="r50"><italic>50</italic></xref>) 2020. godine, odstranjenje sinovijskog nabora tijekom artroskopskog zahvata dovodi do odli&#x010D;nog rezultata u 88,5% bolesnika uz vrlo nisku stopu prijavljenih komplikacija od 1,8%. Valja istaknuti da su Kim i suradnici (<xref ref-type="bibr" rid="r48"><italic>48</italic></xref>) izvijestili da u 30% bolesnika nakon odstranjenja sinovijskog nabora zaostaje i nadalje &#x0161;kljocaj prilikom kretnje, no da taj &#x0161;kljocaj vi&#x0161;e ne izaziva bol.</p>
</sec>
<sec>
<title>Posterolateralna rotatorna nestabilnost lakta</title>
<p>&#x0160;kljocaj s lateralne strane lakta mo&#x017E;e biti posljedica posterolateralne rotatorne nestabilnosti (u daljnjem tekstu PLRN) koja nastaje uslijed rupture lateralnoga ligamentnog kompleksa lakta. (<xref ref-type="bibr" rid="r51"><italic>51</italic></xref>, <xref ref-type="bibr" rid="r52"><italic>52</italic></xref>) Nastanak PLRN-a je u najve&#x0107;em broju slu&#x010D;ajeva posljedica pada na dlan ispru&#x017E;ene ruke u laktu, pri &#x010D;emu je podlaktica u supinaciji i tada uz o&#x0161;te&#x0107;enje lateralnoga ligamentnog kompleksa lakta mo&#x017E;e do&#x0107;i i do prijeloma glave radijusa i/ili koronoidnog nastavka ulne. (<xref ref-type="bibr" rid="r51"><italic>51</italic></xref>, <xref ref-type="bibr" rid="r52"><italic>52</italic></xref>) Tako&#x0111;er, ponavljaju&#x0107;e mikrotraume lakta koje nastaju tijekom sportskih aktivnosti poput tenisa, rukometa, vaterpola i bejzbola mogu dovesti do o&#x0161;te&#x0107;enja lateralnoga ligamentnog kompleksa lakta i uzrokovati PLRN. (<xref ref-type="bibr" rid="r51"><italic>51</italic></xref>, <xref ref-type="bibr" rid="r52"><italic>52</italic></xref>) Do nastanka PLRN-a mo&#x017E;e do&#x0107;i i zbog varus deformacije lakta. (<xref ref-type="bibr" rid="r51"><italic>51</italic></xref>, <xref ref-type="bibr" rid="r52"><italic>52</italic></xref>) Osim toga, o&#x0161;te&#x0107;enje lateralnoga ligamentnog kompleksa lakta mo&#x017E;e nastati i ijatrogeno, primjerice kao komplikacija vi&#x0161;ekratne lokalne primjene kortikosteroidnih injekcija u svrhu lije&#x010D;enja lateralnog epikondilitisa, zbog presijecanja ligamenta tijekom kirur&#x0161;kog lije&#x010D;enja lateralnog epikondilitisa ili zbog resekcije glave radijusa. (<xref ref-type="bibr" rid="r51"><italic>51</italic></xref>, <xref ref-type="bibr" rid="r52"><italic>52</italic></xref>)</p>
<p>Bolesnici se obi&#x010D;no javljaju zbog boli u lateralnom dijelu laktu koja se javlja tijekom aktivnosti kod kojih se lakat ekstendira uz otpor, pri &#x010D;emu je podlaktica u supinaciji, primjerice kad se osoba podi&#x017E;e sa stolice oslanjaju&#x0107;i se pritom dlanom na naslone za ruke. (<xref ref-type="bibr" rid="r51"><italic>51</italic></xref>, <xref ref-type="bibr" rid="r52"><italic>52</italic></xref>) Osim toga, bolesnici se &#x017E;ale i na &#x0161;kljocaj koji se javlja u pokretu ispru&#x017E;anja ruke u laktu dok je podlaktica u supinaciji i to kada je lakat pod kutom od oko 40&#x00B0; fleksije. (<xref ref-type="bibr" rid="r51"><italic>51</italic></xref>, <xref ref-type="bibr" rid="r52"><italic>52</italic></xref>) No, &#x010D;esto su simptomi PLRN-a suptilni. Budu&#x0107;i da ve&#x0107;ina bolesnika s PLRN-om ima normalan izgled lakta s punim opsegom pokreta te da palpacija lakta prilikom pregleda ne mora izazvati bol, &#x010D;esto se niti ne pomisli da mo&#x017E;e biti rije&#x010D; o PLRN-u. Stoga je od osobite va&#x017E;nosti temeljita anamneza jer ako navedu da su imali traumu lakta, napose epizodu luksacije lakta, neki kirur&#x0161;ki zahvat na tom laktu ili pak da su vi&#x0161;ekratno dobili injekcije kortikosteroida u podru&#x010D;je lateralnog epikondila, tada pregled valja nastaviti ispitivanjem medijalne i lateralne stabilnosti lakta izvo&#x0111;enjem varus i valgus stres testova te nekim od provociraju&#x0107;ih testova kojima se dokazuje PLRN. Naj&#x010D;e&#x0161;&#x0107;e se rabe lateralni <italic>pivot-shift</italic> test (engl. <italic>lateral pivot shift test</italic>), posterolateralni test ladice (engl. <italic>posterolateral rotatory drawer test</italic>) (<xref ref-type="fig" rid="f5">Figure 5</xref>), test podizanja (engl. <italic>push-up test</italic>), test ustajanja (engl. <italic>stand-up test</italic>) te test pod nazivom &#x201E;<italic>tabletop relocation test</italic>&#x201C;. (<xref ref-type="bibr" rid="r51"><italic>51</italic></xref>, <xref ref-type="bibr" rid="r52"><italic>52</italic></xref>)</p>
<fig id="f5" position="float" fig-type="figure"><label>Figure 5</label><caption><p>The posterolateral drawer test is utilised for the diagnosis of posterolateral rotatory instability of the elbow. The patient is in a supine position, holding the overhead edge of an examination table, as shown in the image. The elbow is flexed from 50 to 90&#x00B0; with a supinated forearm. The examiner clasps the upper arm of the patient with one hand while positioning the opposite hand upon the proximal forearm of the patient. By exerting traction on the forearm, the examiner is able to induce a displacement characterised by a dimple and apprehension in instances of posterolateral rotatory instability.</p></caption><graphic xlink:href="LV-147-292-f5"></graphic></fig>
<p>Iako se dijagnoza PLRN-a postavlja na osnovi klini&#x010D;kog pregleda, ipak uvijek treba na&#x010D;initi RTG snimke lakta u dvjema projekcijama s ciljem utvr&#x0111;ivanja eventualnog prijeloma kosti, odnosno subluksacije/luksacije zgloba lakta. Na laterolateralnoj snimci trebao bi se vidjeti kongruitet zglobnih povr&#x0161;ina glave radijusa i kapituluma humerusa, no u slu&#x010D;aju PLRN-a &#x010D;esto se uo&#x010D;ava pomak glave radijusa prema straga. Dijagnostika ozljede lateralnoga ligamentnog kompleksa lakta MR-om nije pouzdana, napose ako nije rije&#x010D; o akutnoj ozljedi. Od pomo&#x0107;i pri dijagnostici mogu biti pregled u anesteziji i artroskopija lakta. (<xref ref-type="bibr" rid="r53"><italic>53</italic></xref>) Naime, tijekom artroskopije lakta mogu se kvantificirati stupanj i obrazac nestabilnosti uz istovremenu identifikaciju o&#x0161;te&#x0107;enja unutar zgloba. (<xref ref-type="bibr" rid="r53"><italic>53</italic></xref>)</p>
<p>Osnovni cilj lije&#x010D;enja bolesnika s PLRN-om jest vratiti integritet lateralnom ligamentarnom kompleksu lakta. (<xref ref-type="bibr" rid="r54"><italic>54</italic></xref>, <xref ref-type="bibr" rid="r55"><italic>55</italic></xref>) Osnova konzervativnog lije&#x010D;enja jest izbjegavanje pokreta ili aktivnosti koje izazivaju simptome uz kori&#x0161;tenje zglobnih ortoza koje ograni&#x010D;avaju pokrete lakta. (<xref ref-type="bibr" rid="r51"><italic>51</italic></xref>, <xref ref-type="bibr" rid="r52"><italic>52</italic></xref>) Popravak lateralnoga ligamentnog kompleksa lakta ili pak njegova rekonstrukcija osnova su kirur&#x0161;kog lije&#x010D;enja PLRN-a, a mogu se na&#x010D;initi ili otvorenim na&#x010D;inom ili artroskopski. (<xref ref-type="bibr" rid="r54"><italic>54</italic></xref>, <xref ref-type="bibr" rid="r55"><italic>55</italic></xref>) No, prije popravka/rekonstrukcije lateralnoga ligamentnog kompleksa lakta mora se korigirati eventualno prisutna varus deformacija lakta, kao &#x0161;to se u slu&#x010D;aju prethodno na&#x010D;injene resekcije glave radijusa mora ugraditi proteza glave radijusa. (<xref ref-type="bibr" rid="r54"><italic>54</italic></xref>, <xref ref-type="bibr" rid="r55"><italic>55</italic></xref>)</p>
</sec>
<sec>
<title><italic>Preskok ligamenta,</italic> lig. anulare radii</title>
<p>Prebacivanje dijela anularnog ligamenta preko glave radijusa do kojeg dolazi prilikom pokretanja lakta, a koji se tada umetne u humeroradijalni dio zgloba, dovodi do pojave bolnog &#x0161;kljocaja. (<xref ref-type="bibr" rid="r56"><italic>56</italic></xref>&#x2013;<xref ref-type="bibr" rid="r58"><italic>58</italic></xref>) To se u literaturi rijetko opisivano stanje naj&#x010D;e&#x0161;&#x0107;e javlja nakon traume lakta i to obi&#x010D;no nakon prijeloma distalnog humerusa ili proksimalnog radijusa, odnosno nakon i&#x0161;&#x010D;a&#x0161;enja glave radijusa. (<xref ref-type="bibr" rid="r56"><italic>56</italic></xref>&#x2013;<xref ref-type="bibr" rid="r58"><italic>58</italic></xref>) No, i vi&#x0161;estruke ponavljaju&#x0107;e mikrotraume mogu uzrokovati degeneraciju anularnog ligamenta, zbog &#x010D;ega mo&#x017E;e do&#x0107;i do ubacivanja dijela ligamenta u humeroradijalni dio zgloba. (<xref ref-type="bibr" rid="r56"><italic>56</italic></xref>&#x2013;<xref ref-type="bibr" rid="r58"><italic>58</italic></xref>)</p>
<p>Ovo se stanje o&#x010D;ituje pojavom bolnog &#x0161;kljocaja s lateralne ili anterolateralne strane lakta prilikom fleksije lakta i to kada je podlaktica pronirana. (<xref ref-type="bibr" rid="r56"><italic>56</italic></xref>&#x2013;<xref ref-type="bibr" rid="r58"><italic>58</italic></xref>)</p>
<p>Za postavljanje dijagnoze od najve&#x0107;e su koristi, uz valjano uzetu anamnezu i klini&#x010D;ki pregled, dinami&#x010D;ke slikovne pretrage i to u prvom redu UZV i MR. (<xref ref-type="bibr" rid="r56"><italic>56</italic></xref>&#x2013;<xref ref-type="bibr" rid="r58"><italic>58</italic></xref>) Naime, na njima se mo&#x017E;e uo&#x010D;iti njegovo zadebljanje, dok se dinami&#x010D;kom pretragom mo&#x017E;e uo&#x010D;iti i trenutak kada se dio anularnog ligamenta ubacuje u humeroradijalni dio zgloba lakta.</p>
<p>Lije&#x010D;enje uvijek zapo&#x010D;inje izbjegavanjem provociraju&#x0107;ih aktivnosti koje dovode do bolnog &#x0161;kljocaja. (<xref ref-type="bibr" rid="r56"><italic>56</italic></xref>&#x2013;<xref ref-type="bibr" rid="r58"><italic>58</italic></xref>) Ako tegobe ustraju savjetuje se kirur&#x0161;ko lije&#x010D;enje koje se mo&#x017E;e na&#x010D;initi ili artroskopskim ili otvorenim na&#x010D;inom. (<xref ref-type="bibr" rid="r56"><italic>56</italic></xref>&#x2013;<xref ref-type="bibr" rid="r60"><italic>60</italic></xref>) Tijekom zahvata valja odstraniti dio anularnog ligamenta koji se ubacuje u humeroradijalni dio zgloba tijekom pokretanja lakta. Nakon resekcije dijela ligamenta potrebno je evaluirati stabilnost proksimalnoga radioulnarnog zgloba. U slu&#x010D;aju uo&#x010D;avanja nestabilnosti tog zgloba savjetuje se, u istom aktu, rekonstruirati anularni ligament i to otvorenim zahvatom.</p>
</sec>
<sec>
<title>Radioulnarna sinostoza</title>
<p>Radioulnarnom sinostozom, koja se naj&#x010D;e&#x0161;&#x0107;e nalazi u proksimalnoj polovini podlaktice, ozna&#x010D;avamo abnormalan fibrozni ili ko&#x0161;tani spoj izme&#x0111;u radijusa i ulne. (<xref ref-type="bibr" rid="r61"><italic>61</italic></xref>&#x2013;<xref ref-type="bibr" rid="r63"><italic>63</italic></xref>) U slu&#x010D;aju radioulnarne sinostoze, prosupinacija podlaktice je u manjoj ili ve&#x0107;oj mjeri ograni&#x010D;ena, a sam poku&#x0161;aj izvo&#x0111;enja te kretnje &#x010D;esto je pra&#x0107;en preskokom. (<xref ref-type="bibr" rid="r61"><italic>61</italic></xref>&#x2013;<xref ref-type="bibr" rid="r63"><italic>63</italic></xref>) Sinostoze mogu biti priro&#x0111;ene, ali mogu nastati i nakon traume ili pak biti ijatrogeno uzrokovane. (<xref ref-type="bibr" rid="r61"><italic>61</italic></xref>&#x2013;<xref ref-type="bibr" rid="r63"><italic>63</italic></xref>) Priro&#x0111;ena radioulnarna sinostoza mo&#x017E;e biti nasljedna i mo&#x017E;e se javiti u sklopu razli&#x010D;itih sindroma, ali se obi&#x010D;no javlja kao izolirana anomalija. (<xref ref-type="bibr" rid="r61"><italic>61</italic></xref>) Poslijetraumatske radioulnarne sinostoze naj&#x010D;e&#x0161;&#x0107;e nastaju nakon prijeloma obiju podlakti&#x010D;nih kostiju, a napose onih koji su nastali tijekom traume kod koje je do&#x0161;lo i do traumatske ozljede glave, te nakon Monteggia prijeloma. (<xref ref-type="bibr" rid="r62"><italic>62</italic></xref>, <xref ref-type="bibr" rid="r63"><italic>63</italic></xref>) Ijatrogeni nastanak radioulnarnih sinostoza posljedica je kirur&#x0161;kog zahvata, primjerice nakon zahvata tijekom kojih se kroz jedan ko&#x017E;ni rez na&#x010D;inila osteosinteza obiju kostiju podlaktice ili nakon refiksacije distalne tetive bicepsa na njeno anatomsko hvati&#x0161;te, napose ako se zahvat &#x010D;inio kroz dva ko&#x017E;na reza. (<xref ref-type="bibr" rid="r62"><italic>62</italic></xref>, <xref ref-type="bibr" rid="r63"><italic>63</italic></xref>)</p>
<p>Klini&#x010D;kim pregledom otkrit &#x0107;e se ili zna&#x010D;ajno ograni&#x010D;ena ili pak potpuno neizvediva kretnja prosupinacije i to kako prilikom aktivnog poku&#x0161;aja tako i prilikom pasivnog poku&#x0161;aja izvo&#x0111;enja tog pokreta. Te su kretnje &#x010D;esto pra&#x0107;ene i bolnim preskokom.</p>
<p>Dijagnoza radioulnarne sinostoze postavlja se kada se na RTG snimkama lakta u dvije projekcije vidi ko&#x0161;tani most izme&#x0111;u ulne i radijusa. (<xref ref-type="bibr" rid="r61"><italic>61</italic></xref>&#x2013;<xref ref-type="bibr" rid="r64"><italic>64</italic></xref>) Za planiranje kirur&#x0161;kog lije&#x010D;enja CT je metoda izbora jer se njome dobivaju najkonkretnije informacije o veli&#x010D;ini, polo&#x017E;aju i strukturi sinostoze.</p>
<p>Konzervativno lije&#x010D;enje, tj. samo pra&#x0107;enje, savjetuje se kad je sinostoza jednostrana i kada bolesnik nema ve&#x0107;ih ograni&#x010D;enja tijekom obavljanja svakodnevnih &#x017E;ivotnih aktivnosti. (<xref ref-type="bibr" rid="r61"><italic>61</italic></xref>&#x2013;<xref ref-type="bibr" rid="r63"><italic>63</italic></xref>, <xref ref-type="bibr" rid="r65"><italic>65</italic></xref>) Dvije su opcije kirur&#x0161;kog lije&#x010D;enja koje je indicirano kada je anomalija prisutna obostrano, kada bolesnik ima te&#x0161;ko&#x0107;e tijekom obavljanja svakodnevnih &#x017E;ivotnih aktivnosti te kada je podlaktica pozicionirana u vi&#x0161;e od 60&#x00B0; pronacije. (<xref ref-type="bibr" rid="r61"><italic>61</italic></xref>&#x2013;<xref ref-type="bibr" rid="r63"><italic>63</italic></xref>, <xref ref-type="bibr" rid="r65"><italic>65</italic></xref>) Jedna je resekcija sinostoze te umetanje mekog tkiva izme&#x0111;u radijusa i ulne s ciljem da onemogu&#x0107;i njihovo ponovno srastanje. Druga mogu&#x0107;nost jest derotacijska osteotomija radijusa i ulne s ciljem namje&#x0161;tanja podlaktice u funkcionalniji polo&#x017E;aj. (<xref ref-type="bibr" rid="r61"><italic>61</italic></xref>&#x2013;<xref ref-type="bibr" rid="r63"><italic>63</italic></xref>, <xref ref-type="bibr" rid="r65"><italic>65</italic></xref>)</p>
</sec>
<sec>
<title>Priro&#x0111;eno i&#x0161;&#x010D;a&#x0161;enje glavice radijusa</title>
<p>Iako je naj&#x010D;e&#x0161;&#x0107;a priro&#x0111;ena anomalija lakta, priro&#x0111;eno i&#x0161;&#x010D;a&#x0161;enje glave radijusa izuzetno je rijetko s u&#x010D;estalo&#x0161;&#x0107;u od 0,06 do 0,16%. (<xref ref-type="bibr" rid="r66"><italic>66</italic></xref>&#x2013;<xref ref-type="bibr" rid="r68"><italic>68</italic></xref>) Glava radijusa je u 65% slu&#x010D;ajeva i&#x0161;&#x010D;a&#x0161;ena prema straga, u 18% prema naprijed, dok je u 17% slu&#x010D;ajeva rije&#x010D; o i&#x0161;&#x010D;a&#x0161;enju prema lateralno. (<xref ref-type="bibr" rid="r66"><italic>66</italic></xref>&#x2013;<xref ref-type="bibr" rid="r68"><italic>68</italic></xref>) Znatno se &#x010D;e&#x0161;&#x0107;e javlja u sklopu nekog sindroma nego kao izolirana anomalija. (<xref ref-type="bibr" rid="r66"><italic>66</italic></xref>&#x2013;<xref ref-type="bibr" rid="r68"><italic>68</italic></xref>)</p>
<p>Tegobe se javljaju ili kada se dijete zapo&#x010D;ne koristiti rukom ili, &#x010D;e&#x0161;&#x0107;e, za vrijeme adolescencije. Manje se dijete obi&#x010D;no prezentira bezbolnim ograni&#x010D;enjem opsega pokreta pra&#x0107;enim deformacijom lakta. Starije se dijete, uz bolove, &#x010D;esto &#x017E;ali i na osjet preskoka prilikom pokretanja lakta. Preskok glave radijusa karakteristi&#x010D;no se javlja prilikom fleksije lakta ili prilikom izvo&#x0111;enja pokreta rotacije podlaktice, primjerice pri otklju&#x010D;avanju/zaklju&#x010D;avanju brave klju&#x010D;em. Pri klini&#x010D;kom pregledu vode&#x0107;i simptom je smanjeni opseg pokreta u laktu, u prvom redu prosupinacije, a u velikom se broju slu&#x010D;ajeva prilikom aktivnog i pasivnog pokretanja lakta mo&#x017E;e osjetiti preskok glave radijusa.</p>
<p>Od slikovnih metoda za postavljanje dijagnoze naj&#x010D;e&#x0161;&#x0107;e je dovoljno na&#x010D;initi RTG snimke lakta u dvjema projekcijama na kojima &#x0107;e se jasno uo&#x010D;iti i&#x0161;&#x010D;a&#x0161;enje glave radijusa koja je pove&#x0107;ana i konveksno oblikovana te hipoplasti&#x010D;an kapitulum humerusa. (<xref ref-type="bibr" rid="r66"><italic>66</italic></xref>&#x2013;<xref ref-type="bibr" rid="r68"><italic>68</italic></xref>) U slu&#x010D;ajevima kada se odlu&#x010D;uje za kirur&#x0161;ko lije&#x010D;enje potrebno je na&#x010D;initi MR ili CT.</p>
<p>Ako su simptomi blagi, &#x0161;to je &#x010D;esto slu&#x010D;aj u mla&#x0111;e djece, savjetuje se samo redovito pra&#x0107;enje. (<xref ref-type="bibr" rid="r66"><italic>66</italic></xref>&#x2013;<xref ref-type="bibr" rid="r68"><italic>68</italic></xref>) Kirur&#x0161;ko se lije&#x010D;enje indicira zbog boli, funkcionalnog o&#x0161;te&#x0107;enja ili pak iz estetskih razloga. Dvije su mogu&#x0107;nosti kirur&#x0161;kog lije&#x010D;enja i to ili poku&#x0161;aj repozicije glave radijusa uz korektivnu osteotomiju radijusa ili pak odstranjenje glave radijusa. (<xref ref-type="bibr" rid="r66"><italic>66</italic></xref>&#x2013;<xref ref-type="bibr" rid="r68"><italic>68</italic></xref>) Odstranjenje glave radijusa smanjuje bol, ali mo&#x017E;e dugoro&#x010D;no dovesti do pojave drugih problema, poput razvoja nestabilnosti lakta, nastanka valgus deformacije lakta ili pak do rasta radijusa i ponovne pojave tegoba. Me&#x0111;utim, to je i nadalje najbolja metoda lije&#x010D;enja priro&#x0111;enog i&#x0161;&#x010D;a&#x0161;enja radijusa, ali je od iznimne va&#x017E;nosti naglasiti da se taj zahvat smije &#x010D;initi tek kada se dostigne ko&#x0161;tana zrelost kako bi se izbjegao daljnji rast radijusa.</p>
</sec>
</sec>
<sec sec-type="other3">
<title>Ostali uzroci &#x0161;kljocanja u laktu</title>
<p>Kada se &#x0161;kljocaj u laktu ne javlja periodi&#x010D;no, ve&#x0107; se pojavljuje povremeno i to nakon nekog, ne uvijek istog pokreta rukom, njegov je nastanak vrlo vjerojatno povezan sa slobodnim zglobnim tijelom koje se nalazi u nekom od odjeljaka lakta (<xref ref-type="fig" rid="f6">Figure 6</xref>). Valja istaknuti da slobodna zglobna tijela mogu mijenjati svoj polo&#x017E;aj u zglobu, zbog &#x010D;ega do &#x0161;kljocaja ne dolazi uvijek pri istom pokretu. Taj je &#x0161;kljocaj u pravilu bolan i mo&#x017E;e ili na neko vrijeme ili u potpunosti onemogu&#x0107;iti pokret u zglobu lakta. Prilikom pregleda osobe koja se &#x017E;ali na takav tip &#x0161;kljocaja u laktu treba u prvom redu odbaciti sumnju na stanja koja dovode do preskoka na medijalnoj i lateralnoj strani lakta i potom, s obzirom na dob bolesnika i anamnezu, valja razmotriti sve mogu&#x0107;e uzroke nastanka slobodnih zglobnih tijela. Tako su primjerice u sportski aktivnih adolescenata slobodna zglobna tijela naj&#x010D;e&#x0161;&#x0107;e posljedica osteohondritisa disekansa kapituluma humerusa, a u sportski aktivnih mla&#x0111;ih osoba stra&#x017E;njeg sindroma sraza lakta. (<xref ref-type="bibr" rid="r47"><italic>47</italic></xref>, <xref ref-type="bibr" rid="r69"><italic>69</italic></xref>) U osoba starijih od &#x010D;etrdeset godina, napose manualnih radnika, mogu biti posljedica odlomljenih osteofita zbog razvoja osteoartritisa lakta. (<xref ref-type="bibr" rid="r70"><italic>70</italic></xref>) Naravno, ako u anamnezi imamo podatak o traumi lakta slobodno zglobno tijelo mo&#x017E;e biti posljedica avulzijskog prijeloma ili heterotopne osifikacije, a i odlomljeni osteofit. (<xref ref-type="bibr" rid="r70"><italic>70</italic></xref>) No, ako u anamnezi nemamo traumu lakta, a imamo oteklinu koja je prisutna neko vrijeme, valja posumnjati na neke bolesti sinovijske ovojnice zgloba lakta, primjerice na reumatoidni artritis te na sinovijsku hondromatozu, benignu proliferativnu bolest sinovijske ovojnice koja proizvodi brojna slobodna zglobna tijela. (<xref ref-type="bibr" rid="r71"><italic>71</italic></xref>) Detaljnim klini&#x010D;kim pregledom te dijagnosti&#x010D;kim slikovnim metodama potrebno je utvrditi da je rije&#x010D; o slobodnom zglobnom tijelu/tijelima i potom prema uzroku njegova nastanka odrediti na&#x010D;in lije&#x010D;enja.</p>
<fig id="f6" position="float" fig-type="figure"><label>Figure 6</label><caption><p>Intraoperative images pertaining to the arthroscopic removal of loose bodies from the elbow joint. A) an intraoperative image taken from the proximal anteromedial portal, depicts intra-articular loose bodies marked with arrows; B) an intraoperative image taken from the proximal anteromedial portal, depicts the removal of the intra-articular loose body with an arthroscopic grasper instrument introduced through the proximal anterolateral portal.</p></caption><graphic xlink:href="LV-147-292-f6"></graphic></fig>
</sec>
<sec sec-type="other4">
<title>Zaklju&#x010D;ak</title>
<p>Simptomatsko &#x0161;kljocanje lakta nije tako rijetka pojava i u prvom redu valja utvrditi u kojem se dijelu zgloba javlja te javlja li se periodi&#x010D;ki ili povremeno. Pojava &#x0161;kljocanja s lateralne strane lakta uvijek je posljedica nekog stanja unutar zgloba pa je uz klini&#x010D;ki pregled od slikovnih pretraga potrebno na&#x010D;initi MR ili MR artrografiju, a lije&#x010D;enje je u ve&#x0107;ini slu&#x010D;ajeva kirur&#x0161;ko. S druge strane, pojava &#x0161;kljocanja s medijalne strane u pravilu je posljedica nekog stanja izvan zgloba pa je najbolje klini&#x010D;ki pregled nadopuniti dinami&#x010D;kim UZV-om, a lije&#x010D;enje obi&#x010D;no zapo&#x010D;inje konzervativnim na&#x010D;inom. No, ako simptomi ustraju, a napose ako se razvije sindrom kubitalnog kanala, indicirano je kirur&#x0161;ko lije&#x010D;enje.</p>
</sec>
</body>
<back>
<fn-group>
<fn fn-type="conflict">
<p content-type="fn-title">INFORMACIJE O SUKOBU INTERESA</p>
<p>Autori nisu deklarirali sukob interesa relevantan za ovaj rad.</p>
</fn>
<fn fn-type="financial-disclosure">
<p content-type="fn-title">INFORMACIJA O FINANCIRANJU</p>
<p>Za ovaj &#x010D;lanak nisu primljena financijska sredstva.</p>
</fn>
</fn-group>
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