Effects of short-term compression in people with knee osteoarthritis: A sham-controlled randomised trial

This three-arm sham-controlled RCT tested whether wrapping an elastic compression bandage around the knee for 20 minutes a day for four days helps pain and function in people with knee osteoarthritis, compared to a loosely-wrapped sham bandage or no bandage at all (90 patients, 30 per arm). At Day 6, the mean between-group difference in pain (VAS) for compression versus sham was -1.1 cm (95% CI -2.7 to 0.5), well short of the 1.75 cm minimal clinically important difference, and no comparison at any time point (Day 6 or Week 12) reached the MCID for pain, WOMAC subscales, or objective physical function tests.

AI summary · from the full text · reviewed by Pukhraj Gaheer, Medical Student, Queen's University before publishing

Why it mattersCompression bandaging and soft braces are commonly recommended or self-applied for knee osteoarthritis pain, and this trial suggests short courses of simple elastic compression have no clinically meaningful benefit over a sham wrap or no treatment, which should temper enthusiasm for this low-cost adjunct.

Presenting this at rounds? Start here

• ?If short-term elastic compression shows no clinically meaningful benefit over sham, should clinicians stop recommending it as a stand-alone pain-relief strategy for knee OA, or is it still reasonable as an adjunct to encourage exercise participation?
• ?Given that both the sham and control groups also improved over time, how should this placebo/natural-history effect shape how surgeons counsel patients about the expected benefit of any conservative device-based therapy for knee OA?