Asakawa Shunsuke, Ogawa Takeshi
1 Department of Orthopaedic Surgery and Sports Medicine, Tsukuba University Hospital Mito Clinical Education and Training Center, Mito Kyodo General Hospital, University of Tsukuba, Ibaraki, Japan.
J Hand Surg Asian Pac Vol. 2018 Dec;23(4):601-604. doi: 10.1142/S2424835518720396.
We managed a case of locked metacarpophalangeal joint of the little finger in the extension position. Incarceration of a chronic osteochondral fracture fragment led to this unique condition. The fracture fragment partially adhered to the volar plate and ulnar collateral ligament on the joint side, which is supposed to have resulted in manually irreducible locking of the joint. We performed open reduction and achieved release of the locked joint by excising the fracture fragment.
我们处理了一例小指掌指关节处于伸直位的锁定病例。慢性骨软骨骨折碎片嵌顿导致了这种特殊情况。骨折碎片在关节侧部分附着于掌板和尺侧副韧带，这被认为导致了关节手动无法复位的锁定。我们进行了切开复位，并通过切除骨折碎片实现了锁定关节的松解。
