Ishizuki M, Nakagawa T, Itoh S, Furuya K
Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Japan.
J Hand Surg Am. 1991 May;16(3):533-5. doi: 10.1016/0363-5023(91)90027-9.
Positional dislocation of the pisiform repeatedly occurred in the right wrist of a 19-year-old man following a motorcycle accident. The pisiform repeatedly dislocated distal to the triquetrum when the wrist was extended to 45 degrees or more, and the pisiform was reduced to proper joint congruity after wrist flexion of 55 degrees or more. The patient had a background of generalized joint laxity. Resection of the pisiform resulted in a pain-free, fully functional wrist.
一名19岁男性在摩托车事故后,右手腕反复出现豌豆骨位置性脱位。当手腕伸展至45度或更大角度时,豌豆骨反复向三角骨远侧脱位,而当手腕屈曲55度或更大角度时,豌豆骨恢复到关节正常对位。该患者有全身关节松弛的病史。切除豌豆骨后,手腕无痛且功能完全正常。