DonJoy OA Assist Osteoarthritis Knee Brace

Pain Relief for Active People

DonJoy’s technologically advanced design combines a single upright frame and the 3DF hinge on the OA ASSIST. A patient-ready knee osteoarthritis brace that is ideally suited for activities of daily living.

Features and Benefits

• Single upright frame with 3 point load that shifts compressive knee joint forces from degenerative area to healthy compartment
• Telescoping condyle pad (up to 6º of correction) enables patients to adjust load according to activity level
• 3rd Degree of Freedom (3DF) hinge allows rotation on the calf cuff for an optimal fit (+ / - 11º of rotation from the neutral position)
• Lightweight and molded EVA foam condyle pad for increased comfort and compliance
• Lightweight (17 oz.), aircraft grade aluminum frame (0.100” thick)
• Ergonomic, swooping thigh and calf cuffs provide clearance for the contralateral leg
• Sili-Grip strap pads and liners promote brace suspension
• Contoured, flexible cuff shells conform to patient anatomy and help contain tissue
• Swiveling D-Rings to accommodate leg movement
• 7 sizes and 1 length (14.5”)
• Flexion and extension control
• 1 year warranty on frame and hinges

What is Osteoarthritis (OA)?

Arthritis refers to more than 100 diseases that affect the joints and their surrounding tissues. Osteoarthritis, or OA, is the most common form of arthritis. The statistics on OA are staggering:

• Nearly 21 million people in the United States have OA*
• The incidence of OA is expected to increase even more as the U.S. population ages*
• Over 7 million Americans are limited in their ability to participate in their main daily activities because of their arthritis*

The joint most often affected by osteoarthritis is the knee. Knee OA is caused by the degeneration or breakdown of articular cartilage that covers the ends of the bones that meet at the joint. Cartilage serves as a cushion between the bones, providing a smooth surface for the bones to move against each other. When the cartilage deteriorates the bones may actually be rubbing together. Your physician will often refer to this as “bone-on-bone” osteoarthritis.

Arthritis Foundation

What is Osteoarthritis (OA) knee bracing and how does it work?

Knee braces are available that are specifically designed to treat OA. They stabilize the joint, reduce pain and help to build stronger muscles, which allows patients to return to the activities they love. Load redistribution and joint alignment Through a process called “off-loading” or shifting, OA braces relieve pain by redistributing the weight bearing load on the painful or affected compartment of the joint to the healthy or unaffected compartment. Increased function Studies have shown that wearing an OA brace can increase daily functions and decrease pain. Patients diagnosed with OA who wear a knee brace will generally feel better in the morning, be more active during the day, and rest more comfortably at night.

What to expect from a Osteoarthritis (OA) knee brace

• Braces cannot cure OA and may not be right for everyone. However, it is a viable solution for many people. The ideal candidates are typically active people who are motivated to strengthen their muscles and willing to wear a brace to realize the benefits of this form of treatment.
• Discuss treatment goals with your doctor and others on your health care team before you get a brace.
• Don’t expect a brace to feel good from the start. It may take from a week to a month to get used to how the brace feels on your leg. Be patient. It took a long time for your knee OA to develop.
• Bracing has come close to eliminating pain for some people with knee OA, while others experience moderate relief.

Insurance Billing Code

HCPCS Code: L1843

Shop our complete selection of knee braces or browse additional DonJoy products.

Take the measurement of your thigh and calf 6" above and below your kneecap using a flexible type tape measure.  Use the diameter you measure here to choose your size.

Size	Thigh	Knee Center	Calf
XS	13" - 15 1/2"	12"-13"	10"-12"
S	15 1/2" - 18 1/2"	13"-14"	12"-14"
M	18 1/2"- 21"	14"-15"	14"-16"
L	21"- 23 1/2"	15"-17"	16"-18"
XL	23 1/2" - 26 1/2"	17"-19"	18"-20"
XXL	26 1/2" - 29 1/2"	19"-21"	20"-22"
XXXL	29 1/2" -32"	21" -23"	22" -24

	1.Stand with your legs shoulder-width apart, legs slightly bent and leg muscles contracted.
	2. Measure up six inches from the center of your knee with a tape measure, as shown.
	3. Measure the circumference of your thigh at the 6-inch mark, as shown.
	4. Measure down six inches from the center of your knee with a tape measure, as shown. Then measure the circumference of your calf at the 6-inch mark.