Exercise and Steroid in Knee Osteoarthritis

1 ml methylprednisolon corticosteroid (40 mg Depo-Medrol®) mixed with 4 ml Lidocain (10 mg/ml) without adrenalin. Injections are done ultrasound guided.

1 ml isotonic saline mixed with 4 ml Lidocain (10 mg/ml) without adrenalin. Injections are done ultrasound guided

"The exercise is commenced 2 weeks after injection.~The exercise includes a 10 minute warm up phase (ergometer bicycling) followed by strengthening and coordination exercises focusing on trunk, hip and knees.~In case of pain or symptom exacerbation, a rescue exercise program is administered, excluding weight bearing activities."