Comparison of Outcomes in Obese Patients after Total Knee Arthroplasty with Neutral or Mild Varus: A Retrospective Study with 8‐Year Follow‐Up

• DOI: 10.1111/os.14040
• Publication Date: 2024-04-01T02:38:42Z
• Authors: Ya‐hao Lai; Wen‐xuan Zhao; Xiao‐yu Li; Ning Lv; Zong‐ke Zhou
• Keywords: WOMAC

Objectives Residual varus after total knee arthroplasty (TKA) can affect functional outcomes, which may worsen in the presence of obesity. However, no studies were found to compare outcomes obese patients involving postoperative residual mild or neutral. The aim this study was complications and prosthesis survival, for knees with neutral TKA. Methods We retrospectively reviewed 188 consecutive (body mass index ≥30 kg/m 2 ) at our hospital who underwent TKA due osteoarthritis from January 2010 December 2015. mechanical hip‐knee‐ankle axis angle measured all admission discharge. Knee functions assessed based on Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) score, Society Score (KS‐KS), Function (KS‐FS), Forgotten Joint (FJS), range motion (ROM). Continuous data compared between alignment using analysis Student's t test variance Kruskal–Wallis as appropriate. For multiple comparisons we used Bonferroni–Dunn method adjust p ‐values. Categorical chi‐squared test. Results Of 156 137 completed follow‐up a mean 8.32 ± 1.47 years, 97 corrected 54 kept varus. Patients had significantly WOMAC (8.25 8.637 vs. 14.97 14.193, = 0.009) better FJS (86.03 15.607 70.22 30.031, 0.002). two types did not differ KS‐KS, KS‐FS, ROM. Although one patient undergo revision surgery, there significant difference groups. Conclusions osteoarthritis, preservation improve without compromising survival.