Kienböck病に合併した環指小指伸筋腱皮下断裂の1例

摘要

We report a case of attritional rupture of extensor tendons due to longstanding Kienboeck's disease (Lichtman stage ⅢA). The rupture of the extensor digitorum tendons of the ring and little fingers was caused by a dorsally deviated fragment of the collapsed lunate. Satisfactory results were achieved with surgery -resection of the dorsal fragment and tendon transfer (end-to-side interlacing suture to the adjacent extensor digitorum tendon)- and tension-reduced early mobilization.%手指伸筋腱皮下断裂の原因は，外傷による1次性の伸筋腱断裂のほかに，2次性では慢性関節リウマチや橈骨遠位端骨折後の変形治癒によるものが多く，Kienböck病に合併するものは比較的稀である.今回，Kienböck病に合併した環，小指伸筋腱皮下断裂の1例を経験したので文献的考察を加えて報告する.