The CrossFire OA combines unloading in the tibiofemoral joint with realignment in the patellofemoral joint. Using a spiral strap, the CrossFire OA engages a three-point leverage system to comfortably pull the knee out of varus or valgus and decrease pain in the affected compartment. For those patients with additional patellofemoral OA, an optional Q-strap can be used to place gentle pressure on the patella to support proper alignment and increase joint surface contact. The lightweight hinge and thin, breathable materials yield a product that is comfortable and easy to wear, even under clothing. The strap and buckle design makes donning and doffing easy for patients who struggle with dexterity. The CrossFire OA is also designed for longevity with easily replaceable Velcro panels so patients can get years of use from the same brace.