Solitary Dislocation of the Scaphoid

Abstract

Solitary dislocation of the scaphoid can be classified as simple, or complex if the distal carpal row is included. It may be total or partial. Partial dislocation of the proximal pole may occur in a radial, palmar or dorsal direction. Each type has a different significance in terms of surgical approaches, complications and prognosis.

A Case Report of an Isolated Dislocation of the Scaphoid in a Lesser Arc Injury and a Review of the Literature

“…Isolated scaphoid dislocations were initially divided into simple or complex based on distal carpal row integrity [8]. More recently, Leung et al further divided the classification of these injuries into the following: primary versus secondary, simple versus complex, partial versus total, and the direction of the dislocation [2]. Primary dislocations are dislocations that result directly from the injury and secondary dislocations are persisting dislocations following failed closed reduction.…”

“…Many years have passed with relatively few reports detailing this injury. Leung et al [2] classified pure scaphoid dislocations as simple or complex and partial or total. They also went on to report that the proximal pole has been observed to displace in the volar, dorsal, or radial directions.…”

Neglected isolated scaphoid dislocation

“…The exact mechanism of scaphoid dislocation has yet to be established, but it is generally believed to involved dorsiflexion and ulnar deviation with or without rotational forces 12. There are several treatment options for scaphoid dislocation: Closed reduction and immobilization with a cast,34 closed reduction and percutaneous pinning,56 open reduction and pinning7 and open reduction and pinning followed by ligament repair 189. These treatment modalities are comparable in terms of long term clinical outcomes and share a relatively favorable prognosis.…”

Palmar Scaphoid Dislocation Associated With Dorsal Perilunate Dislocation: Case Report

“…[11][12][13][14][15][16][17][18][19][21][22][23][24][25][26][27][28] However, several authors emphasized additional ligament repair to encourage rapid revascularization of the scaphoid. 9,12,15,16,22-25 Therefore, we repaired the radioscaphocapitate ligament and the wrist joint capsular ligament.…”

“…Previous Reports of Isolated Scaphoid Dislocations arthroscopic; R/O, rule out; AVN, avascular necrosis; SL, scapholunate.may allow rapid revascularization from surrounding soft tissues 23,24. …”