Background

The purposes of the present study are 1) to measure intraoperative patellofemoral compressive force in patients undergoing anatomical bi-cruciate retaining total knee arthroplasty and to assess the relationship between intraoperative patellofemoral compressive force and patient reported outcome measurements and 2) to compare patellofemoral compressive force and patient reported outcome measurements among patients who underwent anatomical bi-cruciate retaining, cruciate retaining, and bi-cruciate stabilized total knee arthroplasty.

Methods

Twenty-two patients with varus osteoarthritis of the knee who underwent anatomical bi-cruciate retaining total knee arthroplasty, 20 patients who underwent cruciate retaining total knee arthroplasty, and 24 patients who underwent bi-cruciate stabilized total knee arthroplasty were assessed. Patient reported outcome measurements were evaluated at 1.5 years after surgery.

Findings

Intraoperative patellofemoral compressive force was significantly lower with anatomical bi-cruciate retaining total knee arthroplasty than with cruciate retaining total knee arthroplasty at 60° to 140° of flexion and nearly equivalent to intraoperative patellofemoral compressive force with bi-cruciate stabilized total knee arthroplasty at all knee flexion angles examined. With anatomical bi-cruciate retaining total knee arthroplasty, there were no significant correlations between intraoperative patellofemoral compressive force and almost all patient reported outcome measurements except for 2011 Knee Society Score expectations, which was positively correlated with patellofemoral compressive force at 10° of flexion, and Patella score quadriceps strength, which was negatively correlated with patellofemoral compressive force at 60° of flexion.

Interpretation

There were no significant correlations between intraoperative patellofemoral compressive force and anterior knee pain after anatomical bi-cruciate retaining total knee arthroplasty.

Evidence level: 3.

中文翻译：

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较高的髌股压缩力不影响解剖双交叉保留全膝关节置换术中的膝前疼痛：引导运动假体的体内前瞻性分析

背景

本研究的目的是 1) 测量接受解剖性双十字保留全膝关节置换术的患者的术中髌股压缩力，并评估术中髌股压缩力与患者报告的结果测量值之间的关系，以及 2) 比较髌股压缩力和患者报告了接受解剖双十字固位、十字固位和双十字稳定全膝关节置换术的患者的结果测量。

方法

对 22 例接受解剖型双十字保留全膝关节置换术的膝关节内翻性骨关节炎患者、20 例接受十字韧带保留全膝关节置换术的患者和 24 例接受双十字稳定型全膝关节置换术的患者进行了评估。患者报告的结果测量在手术后 1.5 年进行评估。

发现

在屈曲 60° 至 140° 时，解剖型双十字固位全膝关节置换术的术中髌股压缩力显着低于十字固位全膝关节置换术，并且几乎等同于全膝关节双十字稳定全膝关节置换术的术中髌股压缩力检查屈曲角度。对于解剖型双十字保留全膝关节置换术，术中髌股压缩力与几乎所有患者报告的结果测量值之间没有显着相关性，除了 2011 年膝关节协会评分预期与 10° 屈曲时的髌股压缩力呈正相关，以及髌骨评分股四头肌力量，与屈曲 60° 时的髌股压缩力呈负相关。

解释

解剖型双十字保留全膝关节置换术后髌股关节压力与膝前疼痛无显着相关性。

证据等级：3。