OARSI guidelines for the non-surgical management of knee, hip, and polyarticular osteoarthritis. Osteo. Cartl. 27(11).
Intentional weight loss for overweight and obese knee osteoarthritis patients: Is more better?
Messier, S.P., Resnik, A.E., Beavers, D.P., Mihalko, S.L., Miller, G.D., Nicklas, B.J., DeVita, P., Hunter, D.J., Lyles, M.F., Eckstein, F., Guermazi, A., and Loeser, R. F. (2018) Arthritis Care Res. (Hobokin). 70(11): 1569–1575.
CLEAR DOSE RESPONSE
Greater amounts of weight loss (over 10%) resulted in greater clinical and mechanistic outcomes.
10% WEIGHT LOSS RECOMMENDED
Evidence suggests minimum 10% weight loss as standard of care for older, overweight or obese adults with knee OA.
RANGE OF BENEFITS
Weight loss resulted in improvements across multiple measures, including pain, function, and quality of life.
Weight loss resulted in significant dose responses for pain, function, HRQL, knee joint compressive force, and other measured outcomes. Participants who achieved more weight loss had greater improvements in the measures, with the over 20% group reporting 25% less pain and better function than the 10–20% group. However, the study was limited by the small sample size in the over 20% weight loss group. Researchers concluded that older, overweight and obese adults with knee OA should lose at least 10% of their weight to experience clinically meaningful improvements in wellbeing.
Relevance to Spring Loaded Braces
For overweight and obese patients with OA, this study demonstrates weight loss as an effective intervention resulting in improvements to multiple clinical and mechanistic measures. However, as this study also notes, achieving and maintaining weight loss can be challenging for patients for a variety of reasons, including slowed metabolic rate and feelings of starvation.
As a tri-compartment offloader with a powerful leg extension assist, a Spring Loaded brace may serve as a viable alternative to weight loss or valuable support for sustained weight loss efforts. Proven to reduce joint loads equivalent to 45 lb of weight loss 1– Budarick, A.R. et al. (2020). J. Biomech. Eng. 142(1), Spring Loaded bracing may provide patients with outcomes similar to weight loss or enable them to achieve additional weight loss through improvements to their levels of knee pain, function, and physical activity levels 2– Budarick, A.R. et al. (2020) J. Prosthet. Orthot. Under Peer Review..