Journal of AdvancedMedical and Dental Sciences Research

Background: Avascular necrosis (AVN) of the femoral head is now recognised as a major musculo-skeletal problem mostly affecting the young people in their productive years of life. It causes pathologic death of osteocytes and can eventually lead to osteo-arthritis of the hip bone followed by subsequent destruction of femoral head and hip joint. In the present study, we aim to assess the outcome of bipolar hip arthroplasty in young adults as treatment of avascular necrosis of femoral head upto stage 3. Materials & methods: The present study consisted of 20 cases. Clinical history, general physical examination and local examination were performed. The diagnosis was based on radiological analysis and clinical history. Under general anaesthesia/spinal anaesthesia/epidural anaesthesia, with aseptic conditions after proper painting and draping the parts, modified Gibbson technique was used for hemiarthroplasty. Patients were gradually followed up for 1 year after an interval of 3 weeks, 6 weeks, 12 weeks, 24 weeks, 36 weeks, and 52 weeks. Patients were accessed clinically and radiologically using Harris hip score. All the results were analyzed by SPSS software version. Results: Out of total 20 patients, 14 (70%) were males while remaining 6 (30%) were females. Mean age of the subjects in the present study was 40.6 years. All the patients exhibited a poor grading of HHS score at pre-operative time. After three weeks, 45 percent (9 patients) of the patients showed good results followed by 40 percent (8 patients) of the patients that showed fair results of HHS grading. Excellent results were present only in 15 percent (3 patients) of the cases postoperatively at 3 weeks. 65 percent (13 patients) cases shared excellent results after both 36 weeks and 52 weeks postoperatively. Statistically significant results were obtained while comparing the mean HHS at different time intervals. Conclusion: Bipolar hip arthroplasty is a good option for treatment in young adults with Ficat Stages II and III AVN of the femoral head. Key words: Avascular necrosis, Bipolar hip arthroplasty, Harris Hip Score.