OA Assist Knee Brace (New)OA Assist Knee Brace (New)


The 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.


• Moderate to severe
unicompartmental osteoarthritis
• Moderate to severe
ligament instabilities
• Post-operative rehabilitation
It is not suitable for patients with more than one compartment involved.

Information on Ordering

How do you avoid a mistake when ordering for your patient? This product should be ordered when the doctor has made the measurements and fitted by the doctor to avoid mistakes in the process of off loading the affected side of the knee.

Choose the right size by marking the mid point of the patella with the patient standing in the schuss position. Measure the circumference of the thigh at 15cm above this point. Before you choose from the drop down list write down your patients indication (is the medial or lateral compartment affected) then the side and finally size before you even touch the drop down menu.

x=1=XS=33-39 cm
x=2=S=39-47 cm
x=3=M=47-53 cm
x=4=L=53-60 cm
x=5=XL=60-67 cm
x=6=XXL=67-75 cm
x=7=XXXL=75-82.5 cm

Tip on the use of drop down menus

After you have chosen, click off the menu and unbold the choice before you roll your mouse wheel because you might inadvertantly change your choice with the roll of the wheel.


• 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
• 6 month warranty on soft goods