Short-term clinical outcomes of metal-on-metal hip resurfacing in osteonecrosis of the femoral head
LI Jia, XU Wei-dong. Department of Orthopeadics, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
Objective To investigate the short-term outcomes of metal-on-metal hip resurfacing in serious osteonecrosis of the femoral head. Methods 28 consecutive patients (33 hips) with osteonecrosis of the femoral head underwent metal-on-metal resurfacing arthroplasty. 24 cases (27 hips) were diagnosed Ficat Ⅲ, and 4 cases (6 hips) were diagnosed Ficat Ⅳ. The average age at the time of surgery was 48 years (21~77 years). 17 patients (60.7%) were male and 11 (39.3%) were female. Clinical and radiographic results were observed. Results All patients were followed up for a mean of 24 months (11~35 months), During the follow-up period, no complications such as dislocation of the hip joints, deep venous embolism, infection or femoral neck fracture occurred. The mean postoperative Harris hip score was 92.6 to 48.5 preoperatively. The radiographic analysis showed all prostheses were fixed with no radiolucencies. Besides the pain is nearly completely relief, the range of motion is remarkable improved. Conclusion The short-term results for metal-on-metal hip resurfacing for this group of patients with serious osteonecrosis of the femoral head were excellent. We await long-term results to see if these early results are maintained.
【CateGory Index】： R687.4