病灶清除后打压植骨联合多孔钽金属棒植入治疗早期股骨头缺血性坏死

目的探讨病灶清除后打压植骨联合多孔钽金属棒植入治疗早期股骨头缺血性坏死的临床疗效。方法 2008年3月-2010年5月,收治14例16髋股骨头缺血性坏死患者。男13例15髋,女1例1髋;年龄18～73岁,中位年龄42.2岁。外伤性1例1髋,酒精性4例4髋,激素性9例11髋。股骨头缺血性坏死根据国际骨循环研究会(ARCO)分期:Ⅰ期3髋,Ⅱ期13髋。Harris评分为(51.89±12.42)分,采用中华医学会骨科学分会百分比评价法中的X线评价方法评分为(31.88±4.03)分。病程6个月～7年,中位病程2.5年。采用经股骨头颈部开窗、病灶清除、自体髂骨打压植骨联合多孔钽金属棒植入治疗。术后患肢避免负重3个月,部分负重3个月。结果术后切口均Ⅰ期愈合,无感染等早期并发症发生。患者均获随访,随访时间13～36个月,平均24个月。2例2髋因关节疼痛加重、股骨头塌陷,于术后4个月及2年行人工全髋关节置换;其余患者术后关节疼痛症状均明显缓解,股骨头生存率为87.5%(14/16)。髋关节功能行Harris评分为(84.89±17.96)分,与术前比较差异有统计学意义(t=—8.038,P=0.001)。X线片检查示植骨区域成骨化明显,骨密度增高,骨小梁排列整齐规则,股骨头无明显塌陷。末次随访时X线片评分为(32.19±6.57)分,与术前比较差异无统计学意义(t=—2.237,P=0.819)。结论病灶彻底清除后打压植骨联合多孔钽金属棒植入治疗早期股骨头缺血性坏死能有效缓解疼痛、改善髋关节功能、防止股骨头塌陷,延缓甚至避免人工全髋关节置换。

Treatment of avascular necrosis of the femoral head by lesions clearance, compact bone grafting, and porous tantalum rod implantation

Objective To study the effectiveness of avascular necrosis of the femoral head treated by lesions clearance,compact bone grafting,and porous tantalum rod implantation.Methods Between March 2008 and May 2010,14 patients(16 hips) with avascular necrosis of the femoral head were treated by lesions clearance,compact bone grafting,and implantation of porous tantalum rod.Of 15 cases,13 were male(15 hips) and 1 was female(1 hip) with a median age of 42.2 years(range,18-73 years),including traumatic in 1 case(1 hip...