Comorbidities in Total Hip and Knee Arthroplasty Patients: When Is It Okay to Say No?

Orthop Clin North Am. 2025 Jan;56(1):1-12. doi: 10.1016/j.ocl.2024.01.003. Epub 2024 Feb 28.

Abstract

Preoperative optimization of modifiable risk factors for total hip and knee arthroplasty remains a foundational cornerstone in reducing postoperative complications and enhancing patient outcomes. With an increasing prevalence of high-risk comorbidities among total joint arthroplasty patients with morbid obesity (body mass index ≥40 kg/m2), uncontrolled diabetes (hemoglobin A1c ≥ 7.5%), and active smoking and tobacco use, many joint arthroplasty surgeons face complex ethical decisions when surgical intervention poses a higher risk for potential harm. Creating definitive numerical cutoffs may lead to access-to-care issues with a difficult balance between helping and harming patients.

Keywords: Bundled payment system; Diabetes mellitus; Ethics of surgical cutoffs; Morbid obesity; Postoperative complications; Preoperative optimization; Primary total hip arthroplasty; Primary total knee arthroplasty.

Publication types

  • Review

MeSH terms

  • Arthroplasty, Replacement, Hip* / adverse effects
  • Arthroplasty, Replacement, Knee*
  • Comorbidity*
  • Diabetes Mellitus / epidemiology
  • Humans
  • Obesity, Morbid / complications
  • Obesity, Morbid / epidemiology
  • Obesity, Morbid / surgery
  • Postoperative Complications* / epidemiology
  • Postoperative Complications* / etiology
  • Postoperative Complications* / prevention & control
  • Risk Factors