OA / Arthritis Knee Brace Series 37-150XXX Medial Left/Lateral Right Series 37-151XXX Medial Right/Lateral Left This Osteoarthritis (OA)/Arthritis Knee Brace provides excellent support and targeted pain relief. The unilateral hinge and strapping system work together to apply a corrective force to the joint - creating space in the joint where cartilage has deteriorated. Stress and load on the affected side of the joint is transferred to the unaffected compartment, allowing the joint to realign. The "off-loading" reduces bone on bone contact and the associated pain. Wrap-around design is quick and easy to apply to tender, swollen knees, and support straps allow for adjustable compression. Neoprene material provides therapeutic warmth to soothe the aching joint. Available in medial and lateral designs for left and right knee applications. Interchangeable condyle pads for day-to-day adjustment. Color: Beige. HCPCS Code: L1820 Med. Left Lat. Right Sizes Fits Med. Right Lat. Left 37-150 X-Small 12 - 13" 37-151 37-150 Small 14 - 15" 37-151 37-150 Medium 16 - 17" 37-151 37-150 Large 18 - 19" 37-151 37-150 X-Large 20 - 21" 37-151 37-150 XX-Large 22 - 23" 37-151 37-150 3X-Large 24 - 25" 37-151 Measure 4" above center of knee.