Hirata H, Fujisawa K, Sasaki H, Morita A, Matsumoto M
Department of Orthopaedic Surgery, Mie University, Japan.
J Hand Surg Br. 1996 Oct;21(5):609-11. doi: 10.1016/s0266-7681(96)80140-9.
A case of trigger index finger is reported. The diagnosis was made in the neonatal intensive care unit. The proximal interphalangeal joint (PIP) was locked in a flexed position. A nodular thickening of the flexor tendon was felt at the A2 pulley level. Surgery revealed thickening of both the A2 pulley and the radial slip of the flexor superficialis tendon. Division of the A2 pulley released the PIP joint locking.
报告了一例扳机指病例。该诊断在新生儿重症监护病房做出。近端指间关节（PIP）锁定在屈曲位置。在A2滑车水平可摸到屈肌腱的结节状增厚。手术显示A2滑车和指浅屈肌腱桡侧束均增厚。切开A2滑车后，近端指间关节解锁。
