Functional Outcome of Hemiarthroplasty Fracture with Austin Moore and Bipolar Prosthesis

Bharathwaj D K, Indhumathi  Krishnaswamy, Arun Shriram A, Shreevithya D

This study shows better Harris hip score, range of motion and less pain. Hedbeck21 preferred bipolar hemiarthroplasty over unipolar because of less acetabular erosion in long term and hence better functional outcome, similar to our study.

Abstract

Objective: To determine the functional outcome of Austin Moore Prosthesis (AMP) Versus Bipolar hemiarthroplasty prosthesis in fracture neck of femur. Methods: This Prospective randomized controlled trial was conducted at the Department of Orthopaedics, in SLIMS Pondicherry from 2016 to 2019. The patients included 60 years or older, having displaced intra capsular neck of femur fractures. Patients with comorbids, arthritis and pathological fractures were excluded. Patients were randomly divided equally into 2 groups, each group operated upon using standard techniques for Austin Moore and Bipolar hemiarthroplasties, respectively. Functional outcome was measured as very good, good, fair, and poor using Harris Hip Scorein follow-up visit at the monthly interval and 6th months. Results: The total numbers of patients were 30(15 in each group). The final functional outcome showed that, in Bipolar prosthesis, 14(97.3%) patients had satisfactory status while 1 (2.7%) patients had unsatisfactory status in Austin Moore group 11. Patients had satisfactory status while 4 had unsatisfactory status. Conclusion: Bipolar prosthesis had better functional outcomes than Austin Moore hemiarthroplasty. We suggest this as the first choice of treatment in elderly patients with fractured neck of femur.

Keywords: Austin Moore Prosthesis, Bipolar Prosthesis, Harris Hip Score, hemiarthroplasty.

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