Outcomes of internal fixation versus hemiarthroplasty for elderly patients with an undisplaced femoral neck fracture: a systematic review and meta-analysis.

Although internal fixation has been the main treatment option for elderly patients with an undisplaced femoral neck fracture, it is associated with a high reoperation rate. Some surgeons have discussed the use of hemiarthroplasty, but there is limited literature comparing these two treatment modalities. In this study, we compared the perioperative results of hemiarthroplasty with internal fixation for undisplaced femoral neck fractures.