Influence of posterior tibial slope on postoperative outcomes after postero-stabilized and condylar-stabilized total knee arthroplasty.

Q1 Medicine

MUSCULOSKELETAL SURGERY Pub Date : 2023-12-01 Epub Date: 2022-11-12 DOI:10.1007/s12306-022-00768-5

E Sinno, G Panegrossi, G Rovere, A U Cavallo, F Falez

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引用次数: 2

Abstract

Purpose: To compare clinical outcomes and surgical times of two different types of total knee arthroplasty(TKA), postero-stabilized(PS) and condylar-stabilized(CS), in relation to posterior tibial slope(PTS) values and the deviation of these values from the surgical technique.

Methods: 168 patients undergoing TKA surgery between 2016 and 2020 met our inclusion criteria. For each case, gender, age at surgery, operating time, type of implant and preoperative PTS(preop-PTS) and postoperative PTS(postop-PTS) measurements were collected; difference(∆PTS) between preop-PTS and postop-PTS was also calculated. Short Form 12 Mental and Physical scores(SF-12 M and P) and functional Knee Society Score(fKSS) were collected preoperatively and at a minimum of 12 months postoperatively. Four subgroups were thus created in relation to PS or CS system and postop-PTS value(≤ 5°and > 5°).

Results: Of the 168 patients, 96 had a PS system and 72 CS system. Performing a CS-TKA took less time than a PS-TKA(p < 0.05). SF-12P showed better results(p < 0.05) in CS-TKA group than PS-TKA, probably because of the younger age of CS-TKA patients(p < 0.05). In the PS > 5° all examined postoperative scores were better(p < 0.05) than PS ≤ 5°, while only fKSS was better(p < 0.05) in CS > 5° than CS ≤ 5°. No significant difference(p > 0.05) in terms of postoperative outcomes between the PS > 5° and CS > 5° was noted, whereas only SF-12P was better in the CS ≤ 5° compared with PS ≤ 5°. Highest values of SF-12 M and fKSS were obtained in the PS ≤ 5°, in which postop-PTS was closer to technique.

Conclusion: When performing a PS-TKA, the best result was obtained with a postop-PTS > 5°, but comparable outcomes between the two systems were evident with postop-PTS > 5°. It is crucial to come as close as possible to the indications reported in surgical technique regardless ∆PTS.

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胫骨后斜度对后稳定型和髁稳定型全膝关节置换术后效果的影响。

目的：比较两种不同类型的全膝关节置换术（TKA）（后稳定型（PS）和髁稳定型（CS））的临床疗效和手术时间与胫骨后斜坡（PTS）值的关系，以及这些值与手术技术的偏差。我们收集了每个病例的性别、手术年龄、手术时间、植入物类型以及术前 PTS（术前-PTS）和术后 PTS（术后-PTS）测量值，并计算了术前-PTS 和术后-PTS 之间的差值（∆PTS）。还收集了术前和术后至少 12 个月的 Short Form 12 Mental and Physical scores (SF-12 M and P) 和 functional Knee Society Score (fKSS)。根据PS或CS系统和术后PTS值（≤ 5°和> 5°）的不同分为四个亚组：结果：在168名患者中，96人采用PS系统，72人采用CS系统。CS-TKA比PS-TKA花费的时间更短（p 5°），所有术后评分（p 5°）均优于CS ≤ 5°。PS > 5°和 CS > 5°的术后效果无明显差异（P > 0.05），而 CS ≤ 5°的 SF-12P 评分优于 PS ≤ 5°。SF-12M和fKSS的最高值出现在PS≤5°的患者中，其术后PTS更接近技术：结论：在进行PS-TKA时，术后PTS>5°可获得最佳结果，但术后PTS>5°时，两种系统的结果具有可比性。无论∆PTS如何，尽可能接近手术技术报告中的适应症至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

MUSCULOSKELETAL SURGERY Medicine-Surgery

CiteScore

4.50

自引率

0.00%

发文量

期刊介绍： Musculoskeletal Surgery – Formerly La Chirurgia degli Organi di Movimento, founded in 1917 at the Istituto Ortopedico Rizzoli, is a peer-reviewed journal published three times a year. The journal provides up-to-date information to clinicians and scientists through the publication of original papers, reviews, case reports, and brief communications dealing with the pathogenesis and treatment of orthopaedic conditions.An electronic version is also available at http://www.springerlink.com.The journal is open for publication of supplements and for publishing abstracts of scientific meetings; conditions can be obtained from the Editors-in-Chief or the Publisher.