Department of Hand and Reconstructive Microsurgery, National University Hospital, Singapore.
J Hand Surg Asian Pac Vol. 2024 Jun;29(3):163-170. doi: 10.1142/S2424835524300020. Epub 2024 May 10.
Volar fracture-dislocations of the proximal interphalangeal joint are rare injuries caused by an axial force on a flexed digit resulting in an avulsion fracture of the dorsal lip of the middle phalanx with volar dislocation of the joint. This volar subtype is analogous to the more common dorsal subtype with a mirror image fracture on the dorsal lip of the middle phalanx. The main significance in this type of injury lies in the disruption of the extensor mechanism at the central slip. The goals of treatment, apart from restoring a congruent and stable joint, is to restore the extensor mechanism to prevent a boutonnière deformity. In this article, we summarise the current literature and discuss the principles for treatment of this uncommon injury. Level V (Therapeutic).
掌侧型近侧指间关节骨折脱位较为少见，多由屈指轴向暴力引起，导致中节指骨背侧唇撕脱骨折伴掌侧关节脱位。这种掌侧亚型类似于更为常见的背侧亚型，即中节指骨背侧唇镜像骨折。此类损伤的主要意义在于中央束伸肌结构的破坏。治疗的主要目标除了恢复关节的吻合和稳定性外，还在于重建伸肌机制以防止纽扣畸形。本文对目前的文献进行了总结，并讨论了这种少见损伤的治疗原则。 5 级（治疗）。
