Management of thumb carpometacarpal joint dislocations: A systematic review

Abstract

Although rare, thumb Carpometacarpal (CMC) joint dislocations can have significant complications which impact hand function. Optimal management is crucial in restoring pinch and grasp strength, but no agreement exists regarding treatment due to a paucity of literature on this subject. Systematic review was conducted involving non-operative and operative management of the CMC joint. 15 articles with a total of 60 thumbs were evaluated from published literature. 12/60 thumbs with isolated CMC joint dislocations were treated with closed reduction, with 4 cases needing additional ligament repair due to joint instability post-reduction. 51/60 of the isolated CMC joint dislocations had ligament reconstruction, with flexor carpi radialis tendon autograft (29/51) as the most popular option. 60/60 patients regained full function and stability of the CMC joint with significant pain relief. Although good surgical outcomes have been achieved, long term clinical outcome reporting is needed to develop a standardized approach to treatment.

Keywords: CMC dislocation; Hand injury; Ligament reconstruction; Metacarpal fractures; Thumb.

Fig. 1

PRISMA Flow DiagramPRISMA (Preferred Reporting items for Systematic Reviews and Meta-Analysis) flowchart of the systematic literature review.