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Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_18 | Pages 21 - 21
1 Apr 2013
Sarkar S Regan M Divekar M Grimshaw M
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A prospective cohort study was undertaken to assess the success of Ossur Unloader knee brace as non-operative management of isolated medial compartment osteoarthritis.

We recruited 12 volunteers (14 knees, mean age 63) with isolated medial compartment arthritis. They were clinically assessed, demographic data and Oxford knee scores were collected before the use of the braces. At 6 months, patient satisfaction, change in symptoms and repeat Oxford scores were noted.

Improvement was noted in 5 patients (6 knees, 42%) whose mean BMI was 29. They gained confidence, knee stability and pain relief. Their mean Oxford score had improved from 28 to 41.

Bracing was unsuccessful in 7 patients (8 knees, 58%) whose mean BMI was 33. These patients were disappointed and had discontinued its regular use. Their mean Oxford score only improved from 21 to 23.

As yet no patient has undergone a knee Arthroplasty. Comparative weight bearing radiographs with and without brace reveal no change in the weight bearing alignment. 42% of the patients with a mean baseline Oxford score of above 25 and a mean BMI of below 30 responded favourably. The main causes of failure were lack of improvement in symptoms, discomfort, skin irritation and poor patient compliance.