论文部分内容阅读
目的:探讨测量胫骨平台内翻角(PTA)预测单纯膝内侧间室骨关节炎患者股骨后髁角(PCA)的可行性。方法:回顾性研究。纳入2018年1月—2019年12月哈尔滨医科大学附属第一医院拟行膝关节置换手术的72例单侧单纯膝内侧间室骨关节炎患者的临床资料，其中男7例、女65例，年龄49～80(66.5±14.35)岁，身高155～180(164.3±11.23)cm。72例患者患侧膝均呈内翻畸形，内翻角为10.6°±1.36°。收集患者术前负重位下肢全长X线片与膝关节CT影像资料，在X线片以及冠状位CT图片上测量患者双侧膝关节的PTA、PCA，统计分析患侧、健侧的PTA、PCA差异，采用Pearson相关分析法分别分析患侧、健侧的PTA与PCA之间的相关性。结果:72例患者健侧PTA、PCA值分别为3.23°±0.79°、4.64°±1.13°，患侧PTA、PCA值分别为8.39°±1.99°、4.71°±1.15°。健侧PTA明显小于患侧，差异有统计学意义(n t＝18.916, n P0.05)。Pearson相关分析结果显示，患侧、健侧PTA和PCA均无相关性(n r健侧＝0.144、n r患侧＝0.109, n P值均>0.05)。n 结论:对于单纯膝内侧间室骨关节炎患者，健侧与患侧的PCA值比较无明显差异，而PTA值则随内侧间室磨损程度的加重而增大，PCA与PTA之间并不存在明显的相关性。术前测量PTA用于预测PCA的方法不可行，“,”Objective:This study aims to investigate the feasibility of measuring the proximal tibia varus angle (PTA) to predict the femoral posterior condylar angle (PCA) in patients with isolated medial compartment osteoarthritis.Methods:A retrospective study included the clinical data of 72 patients with medial compartment knee osteoarthritis and undergoing total knee arthroplasty(7 males and 65 females, age=49-80 [66.5±14.35] years, height=155-180[164.3±11.23] cm) in the First Affiliated Hospital of Harbin Medical University from January 2018 to December 2019. All 72 patients had varus deformity in the affected side, and the varus angle was 10.6°±1.36°. The data of the full-length X-ray films of the lower limb and the CT scan of both knees were collected before operation. The PTA and the PCA of bilateral knee joints were measured on coronal X-ray films and coronal CT images. The differences in the PTA and the PCA between the affected and the healthy sides were compared. The Pearson correlation analysis was used to analyze the correlation between the PTA and the PCA of the affected and the healthy sides.Results:In 72 patients, the values of the PTA and the PCA were 3.23°±0.79° and 4.64°±1.13°, respectively, in the healthy side and 8.39°±1.99° and 4.71°±1.15°, respectively, in the affected side. The PTA of the healthy side was significantly smaller than that of the affected side (n t=18.916, n P0.05). The Pearson correlation analysis showed no correlation between the PTA and the PCA (n rhealthy side=0.144, n raffected side=0.109, all n P values>0.05).n Conclusions:For patients with medial compartment knee osteoarthritis, no significant difference was observed in the PCA of the healthy and the affected sides, but the PTA value increased with increased degree of medial compartment wear. However, no clear correlation was observed between the PCA and the PTA. Preoperative measurement of PTA used to predict PCA is not feasible.