A Comparative Study For Treatment Of Necrosis Of The Femoral Head Of Core Decompress With Bone Graft And Tantalum Screw

Objective- To study the clinical outcome of core decompress with bone graft and tantalum screw insertion for the treatment of necrosis of the femoral head. Methods- 26 cases (31 hips) of Ficat stageⅡnecrosis of the femoral head, from May 2008 to March 2010,were studied,including 19 males and 7 females.The average age was 41.3 (24～63) years.15 cases (19 hips) underwent core decompress with bone graft while 11 cases (12 hips) received tantalum screw insertion.The Harris score,intraoperative blood loss,surgical time,blood transfusions,PCA pump usage and hospital days were evaluated.Results- All cases were followed up 4 to 24 months (average 15 months),there was no statistical difference between two group in intraoperative blood loss,surgical time,blood transfusions,follow-up time,PCA pump usage and Harris score of preoperative.There was statistical difference between two group in hospital days(P<0.05),but in-hospital time of tantalum screw insertion is longer than those of core decompress with bone graft.The Harris score of both groups was obviously increased postoperatively(P<0.05).The average Harris score of tantalum screw insertion group(88.24) was increased by 22.8% than that of core decompress with bone graft (71.84), there was statistical difference between two group(P<0.05).Conclusion- Compared with the core decompress with bone graft, tantalum screw insertion shows more satisfactory result in the function of hip and range of motion,but in-hospital time of tantalum screw insertion is longer than those of core decompress with bone graft.