摘要目的〓分析双锁定钢板内固定联合植骨治疗全膝关节置换(total knee arthroplasty,TKA)术后陈旧性股骨假体周围骨折(periprosthetic joint fracture,PJF)的临床疗效。方法〓2022年2月至2023年2月山东大学齐鲁医院德州医院采用内外侧双锁定钢板联合自体髂骨和同种异体植骨治疗TKA术后陈旧性股骨PJF患者7例,其中男1例,女6例;年龄71~89岁,平均(76.86±6.67)岁。记录手术时间、患者术中失血量、术中及术后输血量、术后血红蛋白含量、手术相关并发症以及膝关节屈伸活动度等,摄膝关节正侧位X线片了解假体、钢板螺钉位置、骨折愈合、假体和内固定松动情况等,采用视觉模拟评分表(visual analogue scale,VAS)评价骨折部位的疼痛不适,采用美国膝关节协会评分(knee society score,KSS)和西安大略和麦克马斯特大学(the Western Ontario and McMaster Universities,WOMAC)评分评价临床疗效。结果〓随访时间3~12个月,平均(5.57±3.05)个月。骨折均顺利愈合,愈合时间(4.43±0.53)个月。平均手术时间(127.86±12.20)min,术中输血量(485.71±106.90)mL。7例患者术后均有不同程度的贫血,术后第3天血红蛋白(81.86±8.59)g/L,术后输血量(114.29±195.18)mL。骨折部位VAS从术前(6.86±0.38)分至末次随访(2.57±0.53)分,差异有统计学意义(P<0.05)。KSS从术前(79.29±4.50)分至末次随访(66.86±3.29)分,差异有统计学意义(P<0.05);KSS优良率28.57%,良2例,可5例。WOMAC评分从术前(69.43±6.40)分至末次随访(100±14.14)分,差异有统计学意义(P<0.05)。结论〓双钢板内固定联合植骨治疗TKA术后陈旧性股骨PJF,固定相对牢固,手术相对安全,骨折顺利愈合,临床疗效相对满意,但术后膝关节活动度会有显著丧失。
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