Please login to view this media
- Talk
- 24/09/2021
- UK
Obesity Does Not Adversely Impact the Outcome of Unicompartmental Knee Arthroplasty for Osteoarthritis: A Meta-analysis of 80,798 Subjects
Description
The presentation, led by fifth-year medical student Nikhil Agarwal, explores the impact of obesity on knee arthroplasty, particularly focusing on unicompartmental knee arthroplasty (UKA). Nikhil explains that obesity is classified as having a body mass index (BMI) of 30 or greater, noting an increase in obesity rates globally, with the World Health Organization reporting over 650 million adults classified as obese in 2016. He emphasizes the relationship between obesity and knee osteoarthritis, highlighting that the risk of this condition escalates with increasing BMI, leading to a greater future burden on healthcare systems.
Different compartments of the knee—medial tibiofemoral, lateral tibiofemoral, and patellofemoral—are explained, and treatment through joint arthroplasty is discussed, especially in cases of isolated compartment osteoarthritis. Nikhil outlines the advantages of UKA, such as reduced bone resection, less blood loss, and faster recovery compared to total knee arthroplasty (TKA). However, he cautions about higher revision rates associated with UKA.
Nikhil presents findings from a systematic review and meta-analysis conducted to assess complication and revision rates for obese versus non-obese patients undergoing UKA. Critical appraisals were made of studies regarding various post-operative complications. His findings reveal no significant differences in complication, infection, or revision rates between obese and non-obese patients, indicating that BMI cutoff points used by healthcare systems to determine patient eligibility for arthroplasty might be inappropriate.
Nikhil concludes by proposing a more nuanced approach to assessing risks associated with surgery in obese patients, recommending that healthcare providers advocate for weight loss as part of long-term management strategies even if surgery is deemed necessary. Throughout the Q&A session that follows, Nikhil addresses specific questions about the stratification of BMI categories and the implications of obesity on surgical outcomes.