Long-term results of treatment for avascular necrosis of femoral by using Spiron-short stem total hip replacement

Tóm tắt

Objective: To evaluate long-term results of treatment for avascular necrosis of femoral head in late stages by using Spiron total hip replacement. Subject and method: From 2012 to 2016, 68 patients who are not older than 50 with stage IV, V, VI of avascular necrosis (According to Steinberg classification) were treated by 90 Spiron hips replacement in the Institute of Trauma and Orthopedic - 108 Military Central Hospital. Study method: Prospective, cross-sectional description, longitudinal, no-controls. Result: Harris score pre-operative was 45.2 (± 2.4) points. The average time follow-up was 52.3 months, the shortest was 24 months, the longest was 73 months, average Harris score at the last time examination was 89.6 (± 2.5). The results included: 63.3% hips were excellent, 24.4% were good, 10.0% hips were average, and 2.3% hips were poor. Conclusion: Treatment for avascular necrosis of femoral head by using Spiron total hip replacement provided good results with average time follow up.