The natural history of a newly developed flexion contracture following primary total knee arthroplasty
The natural history of a newly developed flexion contracture following primary total knee arthroplasty
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DOI：
10.1007/s00264-013-1993-3
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发表时间：
2013-10-01
影响因子：
2.7
通讯作者：
Della Valle, Alejandro Gonzalez
中科院分区：
文献类型：
--
作者：
Anania, Andres;Abdel, Matthew P.;Della Valle, Alejandro Gonzalez
我们调查了全膝关节置换术（TKA）后新发屈曲挛缩的发生率、自然病程和功能后果。40例术前膝关节完全伸展但术后发生屈曲挛缩的患者与80例完全伸展的患者按1：2配对。分析了6周、4个月和1年时新发屈曲挛缩的发生率、ROM和膝关节协会评分（KSS），6周时新发屈曲挛缩的发生率为14%，但4个月和1年时分别降至5%和0.3%。术后1年，KSS无差异（p = 0.5）。本研究表明，大多数TKA术后新发屈曲挛缩的患者术后1年膝关节完全伸展。此外，1年时的膝关节伸展和KSS与未发生屈曲挛缩的患者相当。
We investigated the incidence, natural history, and functional consequences of a newly developed flexion contracture after total knee arthroplasty (TKA).Forty patients with full knee extension preoperatively who developed a postoperative flexion contracture were match-paired 1:2 with 80 patients who had full extension. The incidence of a newly developed flexion contracture, ROM, and Knee Society scores (KSS) at six weeks, four months, and one year were analysed.The incidence of a new flexion contracture at six weeks was 14 %, but diminished to 5 % and 0.3 % at four months and one year, respectively. One year after surgery, there was no difference in the KSS (p = 0.5).This study showed that the majority of patients who developed a new flexion contracture after TKA have full knee extension one year postoperatively. Moreover, knee extension and KSS at one year are equivalent to those patients who did not developed a flexion contracture.