Robotic-assisted medial unicompartmental knee arthroplasty restored prearthritic alignment and led to superior functional outcomes compared with conventional techniques.

IF 3.3 2区医学 Q1 ORTHOPEDICS Knee Surgery, Sports Traumatology, Arthroscopy Pub Date : 2025-01-01 Epub Date: 2024-05-26 DOI:10.1002/ksa.12278

Seung Cheol Kwon, Ho Jung Jung, Jong Hwa Lee, Jin Tak Hyun, Ji Hyo Hwang, Joong Il Kim

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引用次数: 0

Abstract

Purpose: Robotic-assisted medial unicompartmental knee arthroplasty (UKA) can ensure precise preoperative planning, minimise soft tissue damage and restore native coronal alignment. However, few studies have investigated how these advantages translate into differences in early postoperative outcomes. This study aimed to compare differences in early outcomes between conventional UKA (C-UKA) and robotic-assisted UKA (R-UKA).

Methods: This retrospective study investigated two groups of patients who underwent medial UKA: C-UKA group (n = 35) and R-UKA group (n = 35). We assessed (1) serum indicators (hemoglobin, creatine kinase and C-reactive protein) and pain visual analogue scale (VAS) at postoperative days (PODs) 1, 2, 4 and 6; (2) radiologic parameters including joint line height change and arithmetic and mechanical hip-knee-ankle angle (aHKA and mHKA); (3) patient-reported outcomes including Knee Society Scores, Western Ontario and Mcmaster Universities Arthritis Index (WOMAC) and Forgotten Joint Score-12 (FJS-12) at 1-year follow-up.

Results: Despite similar serum indicator results, pain VAS was lower in the R-UKA group than in the C-UKA group at PODs 2 (2.5 ± 1.3 vs. 3.6 ± 1.2, p = 0.02), 4 (2.4 ± 0.9 vs. 3.3 ± 1.0, p = 0.03) and 6 (1.9 ± 1.1 vs. 3.1 ± 1.1, p < 0.01). The joint line height change was significantly lower in the R-UKA group than in the C-UKA group (0.9 mm ± 0.6 mm vs. 2.0 mm ± 1.3 mm, p = 0.02). The equivalence test for preoperative aHKA and postoperative mHKA revealed equivalence in only the R-UKA group (p < 0.01). The R-UKA group showed better WOMAC and FJS-12 compared to C-UKA group at 1-year follow-up.

Conclusion: R-UKA led to lower pain VAS in the early postoperative period compared with C-UKA. Additionally, R-UKA effectively restored the joint line and prearthritic lower limb alignment, resulting in superior functional outcomes at 1-year follow-up compared with C-UKA.

Level of evidence: Level III.

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与传统技术相比，机器人辅助内侧单室膝关节置换术恢复了关节炎前的对位，并带来了更好的功能效果。

目的：机器人辅助内侧单室膝关节置换术（UKA）可确保精确的术前规划、最大限度地减少软组织损伤并恢复原生冠状对齐。然而，很少有研究探讨这些优势如何转化为术后早期疗效的差异。本研究旨在比较传统UKA（C-UKA）和机器人辅助UKA（R-UKA）早期疗效的差异：这项回顾性研究调查了两组接受内侧UKA的患者：C-UKA组（35人）和R-UKA组（35人）。我们评估了：(1) 术后第 1、2、4 和 6 天（PODs）的血清指标（血红蛋白、肌酸激酶和 C 反应蛋白）和疼痛视觉模拟量表（VAS）；(2) 影像学参数，包括关节线高度变化、算术角度和机械髋-膝-踝角度（aHKA 和 mHKA）；(3) 患者报告的结果，包括随访1年时的膝关节社会评分、西安大略和麦克马斯特大学关节炎指数（WOMAC）和FJS-12（Forgotten Joint Score-12）。结果：尽管血清指标结果相似，但在 POD 2（2.5 ± 1.3 vs. 3.6 ± 1.2，p = 0.02）、4（2.4 ± 0.9 vs. 3.3 ± 1.0，p = 0.03）和 6（1.9 ± 1.1 vs. 3.1 ± 1.1，p 结论：R-UKA 组的疼痛 VAS 值低于 C-UKA 组：与 C-UKA 相比，R-UKA 在术后早期的疼痛 VAS 值较低。此外，与 C-UKA 相比，R-UKA 能有效恢复关节线和关节炎前的下肢对齐，从而在 1 年的随访中获得更好的功能效果：证据等级：三级。

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

Knee Surgery, Sports Traumatology, Arthroscopy 医学-外科

CiteScore

8.10

自引率

18.40%

发文量

418

审稿时长

2 months

期刊介绍： Few other areas of orthopedic surgery and traumatology have undergone such a dramatic evolution in the last 10 years as knee surgery, arthroscopy and sports traumatology. Ranked among the top 33% of journals in both Orthopedics and Sports Sciences, the goal of this European journal is to publish papers about innovative knee surgery, sports trauma surgery and arthroscopy. Each issue features a series of peer-reviewed articles that deal with diagnosis and management and with basic research. Each issue also contains at least one review article about an important clinical problem. Case presentations or short notes about technical innovations are also accepted for publication. The articles cover all aspects of knee surgery and all types of sports trauma; in addition, epidemiology, diagnosis, treatment and prevention, and all types of arthroscopy (not only the knee but also the shoulder, elbow, wrist, hip, ankle, etc.) are addressed. Articles on new diagnostic techniques such as MRI and ultrasound and high-quality articles about the biomechanics of joints, muscles and tendons are included. Although this is largely a clinical journal, it is also open to basic research with clinical relevance. Because the journal is supported by a distinguished European Editorial Board, assisted by an international Advisory Board, you can be assured that the journal maintains the highest standards. Official Clinical Journal of the European Society of Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA).