[Flexor hallucis longus tendon rupture as an impingement lesion induced by os trigonum instability].
A Flexor hallucis longus tendon lesion induced by an unstable Os trigonum has not been described heretofore. A 39 years old karateka complained increasing load induced pain at the posteromedial ankle. Because of this, he was unable to take part in sports activities. Clinical, X-ray and MRI investigation assumed a Flexor hallucis longus tendon tear induced by an impingeing Os trigonum. At surgery a longitudinal and a partial transverse tendon tear was present. The Flexor hallucis longus tendon pulley was narrowed by a partially unstable Os trigonum. Tendon reconstruction, Os trigonum removal and early functional posttreatment resulted in full ability in sport, leisure-time activities and profession five months later.
Sportmedizinisches Institut Frankfurt am Main. lohrer@sport.uni-frankfurt.de
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D000328:Adult; D016512:Ankle Injuries / Q000209:etiology / Q000601:surgery*; D001265:Athletic Injuries / Q000209:etiology / Q000601:surgery*; D006801:Humans; D007593:Joint Instability / Q000150:complications / Q000601:surgery*; D008297:Male; D020127:Recovery of Function; D013628:Talus / Q000293:injuries* / Q000601:surgery*; D013708:Tendon Injuries / Q000209:etiology / Q000601:surgery*; D016896:Treatment Outcome