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Product Features

  • Provides support for knees with mild to moderate arthritis and helps with rehabilitation after knee surgery
  • Features adjustable calf cuff to comfortably support and fit underneath the knee joint
  • Ideal for playing golf or for those with a less active lifestyle
  • Aluminimum brace frame with silicone-grip pads and cuff liners. Latex free
  • For right or left leg and suitable for lateral or medial relief. Check product description for size guide.

Osteoarthritis explained HERE

Donjoy OA Assist Knee Brace

£424.98 inc VAT

AVAILABILITY: Delivered in 2-3 days



What is the Donjoy OA Assist Knee Brace?

Comfortable, easy-to-use, single upright OA frame that gives effective support for mild to moderate unicompartmental knee arthritis.

When can I use it?

  • To support a knee affected by mild to moderate osteoarthritis

What size is it?

State left or right knee.
Measure around the thigh, 15cm (6") above the kneecap. If you are between sizes, please choose the larger size. Please select which knee required upon ordering.

  • X-Small: 33cm-39cm (13"-15½")
  • Small: 39cm-47cm (15½"-18½")
  • Medium: 47cm-53cm (18½"-21")
  • Large: 53cm-60cm (21"-23½")
  • X-Large: 60cm-67cm (23½"-26½")
  • XX-Large: 67cm-75cm (26½"-29½")
  • XXX-Large: 75cm-82.5cm (29½"-32")

If your pain is on the inner side of the knee you need the Medial Compartment version.

If your pain is on the outer side of the knee you need the Lateral Compartment version.

How does it work?

Commended for ease of use by the Arthritis Foundation, the Donjoy OA Assist Knee Brace features a single, upright OA frame incorporating a unique 3DF (3rd Degree of Freedom) hinge, which gives flexion and extension control, while minimising brace rotation. A telescoping condyle pad shifts compressive knee joint forces from the degenerative area to the healthy compartment.
Extremely comfortable and easy to use, the OA Assist is the ideal knee brace for patients who wish to carry on with their daily activities, as well as those whose lifestyle is more sedentary.

Please Note if buying from abroad: These products are sent direct from the manufacturer and so lead times will be significantly longer than normal if you purchase this item from outside the UK

Product Spec

General Specs
OrientationLeft or Right
One SizeNo
Functional UsePrevention / Post-Op
Functional Type/CategoryFunctional
Material CompositionAluminium
Latex FreeYes
Indication (General)
Postoperative RehabilitationYes
Impact PreventionNo
Premium Use
Contact SportNo
Activity of Daily LivingYes
Conservative UseYes
Extreme SportsNo
Female SportsYes
Sport Activity
Water SportsNo
Other Sport ActivityNo
No Sport ActivityYes
General Specs (Braces & Support)
Brace LengthShort
Warranty Frame and/or Hinge1 year
Warranty Liners6 months
Brace Version1 Panel
Functional Specs (Braces & Support)
Standard Thigh & Short calfNo
Short Thigh & CalfYes
Standard Thigh & Calf No
Strap Configuration (Brace)
Strap Configuration ACLNo
Strap Configuration PCLNo
Strap Configuration CINo
Strap TypeAdjustable
Number of Straps4
Frame Specification (General)
Soft MaterialsThermoformed Suede
Liners Material
Hypo-Allergic DoeskinNo
Indication (Knee)
Patellofemoral OANo
ACL InjuryNo
PCL InjuryNo
Combined Instability (ACL + PCL)No
MCL InjuryNo
LCL InjuryNo
OA, No Secondary InjuryYes
Frame Specification (Braces & Support)
Hinge DampeningNo
Air-Filled ChambersNo
Spare Condyle Pads IncludedYes
Removable HingesNo


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Availability & Delivery

Donjoy OA Assist Knee Brace is available for immediate dispatch, direct from the manufacturer. Orders placed by 4pm Monday to Friday (excluding Bank Holidays) are dispatched the same day.

Money Back Guarantee offers a 30 day money back guarantee. This means that for the 30 days following your purchase of any item(s) from you can return or exchange your item(s), provided they are unused and in their original packaging.

Full details of our returns policy is available here.