胫骨平台后倾角变化对固定平台膝关节置换术后疗效的影响<sup>*</sup>

doi:10.3969/j.issn.1671-7171.2024.05.003

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Abstract 【Objective】To investigate the effect of changes in posterior tibial slope angle (PSA) on the postoperative efficacy of fixed platform total knee arthroplasty (PS-TKA).【Methods】A retrospective analysis was conducted on the clinical data of 138 patients who underwent TKA for the first time at the Xuzhou Medical University Affiliated Hospital from June 2016 to June 2019. According to the average change in PSA before and after surgery, they were divided into Group A (PSA change ≤ 6.4°,n=68) and Group B (PSA change>6.4°, n=70). After one year of postoperative follow-up, two groups of patients were compared in terms of Blackburn Peel Ratio (BPR), Modified Insell Salvati Ratio (mISR), Knee Range of Motion (ROM), and Knee Function Score.【Results】There was no statistically significant difference in the thickness of two sets of polyethylene gaskets (P>0.05); The joint forgetting score (FJS) of Group A was significantly higher than that of Group B, and the difference was statistically significant (P<0.05); The change in PSA before and after surgery in Group A was (4.8±2.1)°, significantly lower than that in the control group (10.3±2.4)°, and the difference was statistically significant (P<0.05). Postoperative PSA, mISR, BPR, VAS scores, Western Ontario and McMaster University Osteoarthritis Index (WOMAC) scores of the two sets were significantly lower than preoperative (P<0.05); Postoperative ROM, American Knee Society score (KSS) Clinical Score and the KSS functional score were significantly higher than preoperative (P<0.05). Postoperative PSA, ROM, KSS clinical score and the KSS functional score in Group A were significantly higher than those of Group B; Postoperative VAS score and WOMAC score of Group A was lower than those of Group B; However, there was no statistically significant difference between the postoperative mISR score and BPR score between the two groups (P>0.05).【Conclusion】The smaller the change in tibial plateau tilt angle after fixed platform total knee arthroplasty, the greater the postoperative knee joint mobility, and the better the clinical scoring effect, which will bring better postoperative efficacy.

Key words： Arthroplasty, Replacement, Knee Tibia Treatment Outcome

Received: 08 January 2024

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R684.76

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http://journal07.magtech.org.cn/yxlcyj/EN/10.3969/j.issn.1671-7171.2024.05.003 OR http://journal07.magtech.org.cn/yxlcyj/EN/Y2024/V41/I5/649

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