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The term mallet finger refers to a common injury of the terminal extensor mechanism resulting in loss of active extension at the level of the distal interphalangeal joint. Nonoperative management has been suggested as first-line treatment option for almost all mallet finger injuries. In the case of mallet finger associated with an underlying distal phalanx fracture, surgery is recommended if the fracture involves more than 30% of the articular surface or if there is palmar subluxation of the distal phalanx.To evaluate the different modalities used in management of mallet finger.We performed this systematic review and meta-analysis in accordance to the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement and Meta-analysis Of Observational Studies in Epidemiology (MOOSE) statement. PRISMA and MOOSE are reporting checklists for Authors, Editors, and Reviewers of Meta-analyses of interventional and observational studies.We searched Medline via PubMed, SCOPUS, Web of Science, Cochrane Central Register of Controlled Trials (CENTRAL), and Google Scholar from their inception till August 2019. The search retrieved 1192 unique records. We then retained 246 potentially eligible records for full-texts screening. Finally, 44 studies (No. of patients =1609 patients) were included.The objective of this study was to determine if any conclusions can be drawn concerning the indications for surgery in mallet finger injuries; the treatment outcomes of surgical and nonsurgical management; and the most common treatment complications of mallet finger injuries.

Key words

Mallet finger, Distal interphalangeal joint, DIPJ.