Unicompartmental knee arthroplasty and total knee arthroplasty in patients with 15 or more degrees of varus deformity: age- and gender-matched comparative study of radiographic and clinical outcomes - Report - MDSpire

Unicompartmental knee arthroplasty and total knee arthroplasty in patients with 15 or more degrees of varus deformity: age- and gender-matched comparative study of radiographic and clinical outcomes

  • By

  • Arun Mullaji

  • Sitaram Chopperla

  • George K. George

  • Rufiat Kazi

  • July 10, 2026

  • 0 min

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Comparative Analysis of Radiographic and Clinical Outcomes in Patients with 15 or More Degrees of Varus Deformity Undergoing Unicompartmental versus Total Knee Arthroplasty

Overview

This study compares clinical and radiographic outcomes in patients with varus deformity greater than 15 degrees undergoing unicompartmental knee arthroplasty (UKA) versus total knee arthroplasty (TKA).

Background

Patients with advanced medial compartment osteoarthritis and significant varus alignment often undergo total knee arthroplasty (TKA) due to concerns regarding the efficacy of unicompartmental knee arthroplasty (UKA) in such cases. The management of varus deformities is critical, as improper alignment can lead to suboptimal outcomes and complications. Understanding the comparative effectiveness of UKA and TKA in this context is essential for optimizing patient care.

Data Highlights

No numerical data available in the provided source material.

Key Findings

  • Patients with varus deformity > 15° traditionally managed with TKA.
  • Concerns exist regarding the long-term success of UKA in patients with significant varus alignment.
  • The study included 52 matched pairs of patients for comparison.
  • Postoperative patient-reported outcome measures (PROMs) were hypothesized to be inferior in UKA compared to TKA.
  • Demographic characteristics were similar between UKA and TKA cohorts, minimizing confounding factors.

Clinical Implications

The findings indicate differences in patient-reported outcomes between TKA and UKA in patients with significant varus deformity.

Conclusion

This study presents findings on the outcomes of UKA versus TKA in patients with significant varus deformities.

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