title: Unipolar versus bipolar hemiarthroplasty for femoral neck fractures: is there a difference?
abstract: Arthroplasty has been shown to reduce the rate of reoperation after femoral neck fracture. A number of studies have compared the outcomes of unipolar and bipolar arthroplasty. At 1- to 3-year follow-up, the functional outcomes of unipolar and bipolar arthroplasty are equivalent. Bipolar arthroplasty has a higher initial cost. However, the long-term results of acetabular wear and need for revision are unknown.
authors: National Institute of Arthritis, Musculoskeletal and Skin Diseases, NIH, Bethesda, MD 20892, USA. bhattacharyyat@mail.nih.gov
authors: Timothy
authors: T
authors: Bhattacharyya
authors: Kenneth J
authors: KJ
authors: Koval
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000639:trends*; D019317:Evidence-Based Medicine; D005265:Femoral Neck Fractures / Q000175:diagnosis* / Q000628:therapy*; D005593:Fracture Fixation, Internal / Q000639:trends*; D006622:Hip Prosthesis / Q000639:trends*; D006801:Humans