Abstract

Introduction: Neck of the femur fracture is one of the frequently seen fractures by an orthopaedic surgeon. The incidence of these fractures and the problems subsequent to them seems to be increasing; the cause of this is mainly the increase in elderly population. This percentage is due to increasing rate of osteoporosis and high velocity trauma. At present, there are many surgical options (Dynamic hip screw systems, Cannulated screws, Blade plates, Hemi and Total hip arthroplasty) available. There is a universal agreement that unipolar or bipolar hemiarthroplasty is the preferred method for treating displaced intracapsular femoral neck fractures in elderly patients.

Aim: To study and compare the functional and radiological outcome between Austin Moores prosthesis and Bipolar prosthesis done over 6 months.

Materials and Methods: 30 patients were divided into 2 groups depending on the prosthesis used on them. Type of prosthesis was chosen by taking patients health, age and demand under consideration. One group underwent hemiarthroplasty with Austin Moore’s prosthesis and another group underwent hemiarthroplasty with bipolar prosthesis. All the patients were assessed using Harris hip score and Bakers acetabular score at 6 weeks, 3 months and 6 months respectively.

Result: At the end of the study, patients in both the groups were assessed using Harris hip sore and Bakers acetabular score and statistically significant values were obtained.

Conclusion: The current study shows that in short term follow-up both Austin-Moore arthroplasty and Bipolar arthroplasty showed more or less similar end results. However the incidence of complications like implant loosening was lower after bipolar hemiarthroplasty. And also patients showed better functional satisfaction in bipolar prosthesis compared to Austin-Moore prosthesis.

Keywords: neck of femur fracture, Austin Moore arthroplasty, bipolar arthroplasty.