Is dislocation rate higher in total hip arthroplasty done for acute displaced fracture neck of femur?

Abstract

Background Hip replacement has transformed the lives of hundreds of thousands of people regardless of the underlying aetiology. Debate about the role of arthroplasty for an acute displaced femoral neck fracture has been ongoing for decades. In this article we are going to evaluate whether dislocation rate is higher in total hip replacement done for acute displaced fracture neck of femur. Materials and Methods: Retrospective study of sixty two patients who underwent total hip replacement in Sri Ramachandra medical center. The minimum follow-up was taken as 5 years. Patients were divided into two group; traumatic and non traumatic group. We had 38 patient who underwent hip replacement for non traumatic indications. Traumatic group had 24 patients. The inclusion criteria for the traumatic group were acute displaced fracture neck of femur above 50 years and fracture neck with fracture head with dislocation above 50 years. We used the Harris hip score (Modified) for clinical and functional evaluation. Results: We had 89% excellent/good results in non traumatic group 75% excellent/good result in traumatic group. We had one dislocation in non-traumatic group and four dislocations in traumatic group. Conclusions: There is an increase rate of dislocation in patient who underwent total hip replacement for a traumatic condition when compared to their non traumatic counterpart.