A knee brace that changes the alignment of the knee as weight is taken on that side.
Unloaders are often used to give symptomatic relief to patients whose knee osteoarthritis is not severe enough to warrant a total knee replacement, or to patients who are waiting for a knee replacement, either a total or a partial one. They are also used to 'unload' one side of the knee after cartilage repair surgery.
An Update on Unloading Knee Braces in the Treatment of Unicompartmental Knee Osteoarthritis from the Last 10 Years: A Literature Review.. Mistry DA, Chandratreya A, Lee PYF. Surg J (N Y). 2018 Jul 2;4(3):e110-e118.