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- Talk
- 19/05/2021
- UK
Medial Bicompartmental Arthroplasty as an Alternative to Total Knee Arthroplasty in the Treatment of Severe Patellofemoral and Medial Compartment Arthrosis: A Gait Analysis and Patient Satisfaction Study
Description
In this presentation, Amy Garner discusses the findings of a study from Imperial College London on Medial Bicompartmental Arthroplasty (MBA), a surgical technique for knee osteoarthritis. Garner highlights that while over 100,000 primary knee replacements occur annually in the UK, around 25% of patients express dissatisfaction, often due to the loss of healthy bone and ligaments during Total Knee Arthroplasty (TKA). The presentation outlines that MBA aims to address these concerns, preserving the anterior cruciate ligament (ACL) and offering improved functional outcomes for patients with specific compartment degeneration.
The investigation involved a gait analysis comparing 16 subjects who underwent MBA to healthy controls and patients who received TKA. While neither arthroplasty group matched the walking speed of healthy individuals, those with MBA demonstrated significantly faster walking and improved gait characteristics compared to those who underwent TKA. Additionally, satisfaction levels and quality of life assessments showed slight advantages for the MBA group.
The mechanics of the procedures were further investigated through cadaveric studies, revealing that MBA maintained near-normal torque profiles and efficiency levels that were only marginally less than those of medial unicompartmental arthroplasty. In contrast, TKA was associated with a significant decrease in efficiency.
The conclusion drawn from Amy Garner's presentation emphasizes the potential of MBA as a viable alternative to TKA, providing excellent patient satisfaction and functional performance while sparing healthy knee structures. She acknowledges her co-authors for their contributions to the research.