Interventions for treating proximal humeral fractures in adults.

Abstract

Proximal humeral fractures are common yet management varies widely. In particular, the role and timing of any surgical intervention have not been clearly defined. To collate and evaluate the scientific evidence supporting the various methods used for treating proximal humeral fractures. We searched the Cochrane Musculoskeletal Injuries Group trials register, MEDLINE, PubMed, the Cochrane Controlled Trials Register, CINAHL, the National Research Register and bibliographies of trial reports. The search was completed in July 2000. All randomised studies pertinent to the treatment of proximal humeral fractures were selected. Independent quality assessment and data extraction were performed by two reviewers. Although quantitative data from trials are presented, trial heterogeneity prevented pooling of results. Nine randomised trials were included. All were small trials; the largest study involved only 85 patients. Bias in these trials could not be ruled out. Six trials evaluated conservative treatment, two compared surgery with conservative treatment and one compared two surgical techniques. In the 'conservative' group there was very limited evidence indicating that the type of bandage used made any difference in terms of time to fracture union and the functional end result. However, an arm sling was generally more comfortable than a body bandage. There was some evidence that mobilisation at one week instead of three weeks alleviated pain in the short term without compromising long term outcome. Two trials provided some evidence that patients, when given sufficient instruction to pursue an adequate physiotherapy programme, could generally achieve a satisfactory outcome if allowed to exercise without supervision. Operative reduction improved fracture alignment in two trials. However, in one trial, surgery was associated with a greater risk of complication, and did not result in improved shoulder function. Fracture fixation of severe injuries was associated with a high rate of re-operation in one trial, comparing tension-band wiring fixation with hemi-arthroplasty. Only tentative conclusions can be drawn from the available randomised trials, which do not provide robust evidence for many of the decisions which need to be made in contemporary fracture management. It is unclear whether operative intervention, even for specific fracture types, will produce consistently better long term outcomes. There is a need for good quality evidence for the management of these fractures.