Lateral unicompartmental knee arthroplasty (UKA) and total knee arthroplasty (TKA) are both reliable treatment options for patients with isolated lateral osteoarthritis (OA). However, studies comparing both procedures are scarce. Aims of this study were to (I) compare short-term functional outcomes following lateral UKA and TKA and (II) assess the role of patient characteristics on outcomes as measured by the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC).In this retrospective cohort study, 82 patients (48 undergoing lateral UKA and 34 undergoing TKA) were identified that presented with lateral OA and completed the WOMAC. Independent t-tests were used to compare outcomes following lateral UKA and TKA.Mean follow-up was 2.8 years (range: 2.0 - 5.0 years). Preoperatively, no differences between lateral UKA and TKA were seen (50.1±13.5 and 53.3±17.1, respectively, p=0.551). Postoperatively, lateral UKA patients reported better overall outcomes than TKA (90.5±11.7 vs. 81.8±17.9, p=0.017). Subgroup analysis showed better outcomes following lateral UKA than TKA in patients younger than 75 years (92.1±9.9 vs. 81.3±19.6, p=0.014) and in females (91.6±9.9 vs. 81.0±18.2, p=0.014).These findings indicate that lateral UKA has superior short-term functional outcomes compared to TKA in patients with isolated lateral OA. Better outcomes were especially seen in younger patients and females. These findings may help orthopedic surgeons choose treatment for patients presenting with lateral OA and optimize treatment for individual patients.

J.P. van der List

H. Chawla

H.A. Zuiderbaan

A.D. Pearle

The Knee

THE KNEE 是一本国际期刊，发表关于该关节的临床治疗和基本生物力学特征的研究。该杂志的目的是为外科医生、生物医学工程师、成像专家、材料科学家、康复人员和所有对膝关节感兴趣的人提供一种工具。涵盖的主题包括但不限于：• 解剖学、生理学、形态学和生物化学；• 生物力学研究；• 假肢、矫形器和增强装置的开发进展；• 成像和诊断技术；• 病理学；• 创伤；• 手术；• 康复。

The Knee is an international journal that focuses on clinical treatments and fundamental biomechanical characteristics of the knee joint. The journal aims to provide a platform for surgeons, biomedical engineers, imaging specialists, materials scientists, rehabilitation professionals, and anyone interested in the knee joint. Topics covered include but are not limited to: anatomy, physiology, morphology, and biochemistry; biomechanical studies; advancements in prosthetics, orthotics, and augmentation devices; imaging and diagnostic techniques; pathology; trauma; surgery; and rehabilitation.

《Knee》是一本国际期刊，专注于膝关节的临床治疗和基本生物力学特征的研究。该期刊旨在为外科医生、生物医学工程师、成像专家、材料科学家、康复人员以及所有对膝关节感兴趣的研究者提供一个交流平台。涵盖的主题包括但不限于：解剖学、生理学、形态学和生物化学；生物力学研究；假肢、矫形器和增强装置的开发进展；成像和诊断技术；病理学；创伤；手术；康复。

Knee

Patients with isolated lateral osteoarthritis: Unicompartmental or total knee arthroplasty?

It is indicated that lateral UKA has superior short-term functional outcomes compared to TKA in patients with isolated lateral OA, and these findings may help orthopedic surgeons choose treatment for patients presenting with lateral Oa and optimize treatment for individual patients.

Category	Quartile
医学	4
医学, 骨科	4
医学, 运动科学	4
医学, 外科	4

Patients with isolated lateral osteoarthritis: Unicompartmental or total knee arthroplasty?

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