Recently Viewed

Donjoy OA Adjuster 3 Osteoarthritis Heavy Duty Unloading Knee Brace

  • Unloader OA knee brace to provide knee stability
  • Ideal for treatment of unicompartmental osteoarthritis
  • Tough knee brace suited to more active users
  • Contours to the leg to reduce migration and improve comfort
Our Price:  £427.49 (exc VAT)
(£512.99 Inc. VAT) (inc 20% VAT)
Earn 427 Loyalty Points

Brand:  Donjoy

Donjoy OA Adjuster 3 Osteoarthritis Heavy Duty Unloading Knee Brace

Perfect for osteoarthritis sufferers, the Donjoy OA Adjuster 3 Osteoarthritis Heavy Duty Unloading Knee Brace uses a four-point leverage system to shifts pressure onto the stronger side of the knee, which opens up weaker side to prevent osteoarthritic friction. Not only does this reduce pain during physical activity, it provides greater stability and could delay or even prevent the need for surgery. Made of lightweight, aircraft-grade aluminium and featuring floating hinges, it's unobtrusive and comfortable despite it's highly supportive design.

What's Included?

  • 1 x Offloading Knee Brace

Which Size and Fit Should I Choose?

Designed in seven different sizes, the OA Adjuster Knee Brace provides you with tailored support. To find out which size you require, simply measure the circumference of your thigh 15cm above the centre of the kneecap (as shown) and consult the table below. The total length of the OA Adjuster Brace is 40cm or 16 inches.

How to measure your thigh for a perfect fit

Size Thigh Circumference (cm)
Extra Small 33 - 39cm
Small 39 - 47cm
Medium 47 - 53cm
Large 53 - 60cm
Extra Large 60 - 67cm
XX-Large 67 - 75cm
XXX-Large 75 - 81cm

Sizing Tips

  • For measurements that fall in between sizes, we recommend choosing the larger size for better comfort
  • If you do not have a flexible tape measure, use a string to measure your knee and then measure the string with a ruler
  • If your joints are swollen or atrophied, please take this into account when choosing your size

What Conditions Is the Adjuster 3 Osteoarthritis Knee Brace For?

This Donjoy Osteoarthritis Knee Brace stabilises and supports your knee, making it suitable for a number of different indications. This includes the following:

  • Medial or lateral osteoarthritis (mild to moderate)
  • Unicompartmental osteoarthritis
  • Post-operative rehabilitation
  • Ligament instabilities and preventative measures
  • Athletes and those looking for a tough brace for sports and exercise

Features and Benefits of the OA Adjuster Support

  • Uses a Four Points of Leverage System to provide compression where necessary
  • Designed to shift compression away from the degenerative area to healthy tissue
  • Features swooping thigh and calf cuffs for inner leg clearance
  • Swivelling D-Rings accommodate leg movement for added comfort
  • Floating hinges allow a contoured fit with a double upright design
  • Provides flexion and extension control to reduce uncomfortable movements
  • Designed with a lightweight, aircraft-grade aluminium frame
  • Features an anti-migration band that anchors to the upper calf
  • Ideal for active patients looking to remain as active as possible

What Is an Offloading Knee Brace?

An offloading knee brace, also known as an unloader or unloading knee brace, is the best choice for those suffering from osteoarthritis of the knee. It works by applying pressure to the knee joint on the opposite side of the knee to the side that is suffering from osteoarthritis, thereby opening up the affected side to prevent osteoarthritic friction. These braces are ideal for providing stability, reducing pain, and delaying or preventing the need for surgery and invasive procedures.

Should I Choose a Medial or Lateral Compartment?

Your choice of a medial (inside the knee) or lateral (outside of the knee) compartment knee brace will depend on which side of the knee your osteoarthritis is affecting. The brace will apply pressure to the opposite side of the knee to your pain, helping to open up the joint on your affected side to avoid osteoarthritic friction. For example if you suffer from:

  • Medial Osteoarthritis: You should choose the Medial Compartment option
  • Lateral Osteoarthritis: You should choose the Lateral Compartment option

What Is the Four Points of Leverage System?

This Adjuster Knee Brace provides clinically proven ligament stability with its patented Four Points of Leverage System. This system anchors the knee at strategic locations to shift pressure to the tibia from the knee, resulting in a reduction of pain and a more natural walking pattern.

Donjoy Offloader Knee Brace Four-Points-of-Leverage
The Four Points of Leverage are spread out across the brace for better balance

  1. Anterior thigh anchor
  2. Posterior tibia anchor
  3. Lower thigh strap to push the femur anteriorly
  4. Anterior tibia strap to apply an active constant load to prevent anterior tibial translation

Is This a Suitable OA Knee Brace for Sports?

This offloading osteoarthritis brace is designed to be tough and reliable, making it the perfect brace for getting back to sports with osteoarthritis. Since it's an offloading knee brace, it's only suitable for you if you suffer from compartmental medial or lateral osteoarthritis. If you suffer from osteoarthritic pain more centrally, or in both the medial and lateral compartments, one of the two braces mentioned directly below will be more suitable.

Is This Knee Brace Suitable for Bilateral Osteoarthritis?

No, if you suffer from bilateral osteoarthritis, or compartmental osteoarthritis on both the medial and lateral sides, this is not the right brace for you. Since an unloader brace is designed to shift your weight from the side affected by osteoarthritis to the healthier side, the offloading action of this brace will actually cause an increase in pain for bilateral osteoarthritis.

If you suffer from bilateral osteoarthritis, we would recommend one of the Donjoy Full Force Knee Brace with Fourcepoint, a dynamic hinged knee brace that offers strong support and maximum stability.

How Comfortable Is the Adjuster 3 Osteoarthritis Knee Brace?

Contoured to the thigh and calf, this unloader brace for arthritis is exceptionally comfortable to wear. It is however designed with a rigid frame to be tough enough for sports, and a lighter, more malleable version is available for less strenuous activity in the Donjoy OA Nano Offloading Osteoarthritis Knee Brace.

Is This Brace Easy to Use?

Yes, in fact it's been commended by the Arthritis Foundation for ease of use! Its ease of application and comfort while you're wearing it make it feel great while it's on, providing minimal complication so you can get on with your activity.

Will This Offloading OA Knee Brace Fit My Knees?

This knee brace is designed to fit all knees, no matter the shape. Given that your thigh fits into the parameters in the sizing section below, the floating hinges will allow you to adjust the brace so that it fits snugly on your knees.

closer look at brace

Which Side Is the Offload Hinge Located On?

The adjustment for the off-load on the hinge is located on the opposite side of the brace to the chosen affect compartment. For example, if you selected a "medial" side compartment, the adjustment for the off-load would be located on the "lateral" side of the brace.

The amount of adjustment required is individual to each person and their individual requirements. The adjustable hinge applies pressure to the good side of the knee to help relieve the pressure on the affected side of the knee.

Is This Knee Brace Suitable for Skiing?

While this Osteoarthritis Knee Brace will provide enough support for skiing, it may not fit with ski boots for all users. For this purpose it is more suitable for taller users, and it's advised that the brace is only guaranteed to fit with ski boots for users over six feet tall.

What Is the Adjuster 3 Offloader Knee Brace Made From?

Made with materials that find the perfect balance between strength and lightweight performance, the Adjuster 3 Brace is made using Nano MAG Technology. This provides lightweight function, while still maintaining the strength of aircraft-grade aluminium.

Is an 'Offloader' Knee Brace the Same as an 'Unloader' Knee Brace?

Yes, the terms 'offloader' and 'unloader' mean the same thing, referring to a knee brace that shifts the pressure from the side that you are experiencing arthritis. This helps to reduce friction associated with arthritis, while helping you to relieve pain and achieve a better gait.

Will the Adjuster 3 Stay in Place During Activity?

The OA Adjuster 3 is designed to stay in place during all levels of exercise. Its weight is drastically reduced compared to previous models, while mounted strap tabs and a contoured calf cuff ensure that is fits snugly and comfortably to prevent shifting during movement.

Will the Adjuster 3 Stay in Place During Activity?

Yes, this brace is suitable for use in salt water, making it ideal for intense sports like wakeboarding, waterskiing and kitesurfing. To maximise the longevity of all components and protect the brace, we would recommend rinsing the brace with clean water after each use in salt water.


Delivery Information

Please refer to the dispatch estimation at the top of the page for information of your expected lead time. Please note that for products that have a drop-down menu, this estimate will only appear when you have selected your desired model.

Delivery Charges

Order Value Delivery Cost
Up to £64.99 £4.95
£65.00 and over FREE

Some larger or heavier orders will be couriered to Northern Ireland, Scottish Highlands or UK offshore islands. In these cases, we may need to contact you to arrange for a courier supplement charge, but only if your order is one that requires a courier and you live in Northern Ireland, Scottish Highlands or UK offshore islands.

Delivery Estimations

The delivery expectation for medical supplies on our website is specified on the product page of that particular medical supply. Where a delivery expectation is not stated, we will dispatch the goods as quickly as possible, normally within 24 to 48 hours on working days, so that you receive your medical supplies promptly.

If you would like up-to-the-minute delivery information on your medical supplies order, please call our Customer Care Team on 020 7501 0593 who will be able to give you further tracking information or progress details for your order.

Alternatively, please send us an email using the form below and a member of our Customer Care Team will respond to you personally as soon as they can:

Please add the two numbers

European Delivery

Unfortunately, due to restrictions with our couriers, we are unable to ship items outside of the UK. We apologise for any inconvenience that this may cause.

VAT Relief - Information and Exemption Forms

This product is eligible for VAT relief. Please visit our VAT relief page for more information.

How to Claim Your VAT Exemption

VAT exemption can be claimed in two ways – either when placing your or order or claiming back the VAT on a purchase that you have already made.

Claiming VAT Exemption When Ordering

To remove the VAT from your order when placing your purchase, simply select the option for VAT relief on the Basket page (see below for an example of how this looks).

VAT Example for

If you select this checkbox on the basket, there will be extra information you will be required to provide on the checkout to confirm your elligibility.

PLEASE NOTE: If you are buying multiple products that are available with VAT relief, please ensure that all of these are selected when placing your order.

Claiming Your VAT After Placing Your Order

If you did not claim VAT relief when placing your order but would like to receive VAT relief, don't worry, this can be done after your order has been placed. To do this, simply fill in the form below.

The email address you provided when placing your order.
The order number you were provided with by email when placing your order. This is normally in the format e.g. MED123456
Name of the person with the disability or chronic sickness. If claiming VAT relief yourself, please enter your name. If claiming VAT relief on behalf of someone else, please enter their name.
Address of the person with the disability or chronic sickness.
Please provide details of your chronic condition or disability
I confirm these products are for domestic or my own personal use:
I consent to this data being used to assess my eligibility for VAT relief:
I confirm that the above data is true and accurate to the best of my knowledge and I would like to claim VAT relief:
Please add the two numbers

Customer Reviews

Be the first to Write a Review for this item!

Related Products
Donjoy OA Clima-Flex Offloading Knee Support for Osteoarthritis

Donjoy OA Clima-Flex Offloading Knee Support for Osteoarthritis

no rating
  • Offloads pressure to tackle mild-moderate arthritis pain 
  • Best for light active activities such as walking, golf or hiking
  • Moisture wicking technology ideal for warmer weather
  • Special hinge allows you to adjust pressure to suit you
£195.83 (exc VAT)
£235.00 (inc VAT)
Available  Available

Donjoy OA Nano Lightweight Osteoarthritis Offloading Knee Brace

Donjoy OA Nano Lightweight Osteoarthritis Offloading Knee Brace

no rating
  • Lightweight unloader knee brace for relief of pain
  • Ideal for moderate to severe knee osteoarthritis (OA)
  • Comfortable fit to help you stay active and move freely
  • Offloads pressure to help the user avoid surgery
£416.66 (exc VAT)
£499.99 (inc VAT)
Available  Available

Donjoy OA Reaction Web Left Medial/Right Lateral Silicone Knee Brace

Donjoy OA Reaction Web Left Medial/Right Lateral Silicone Knee Brace

no rating
  • Discreet solution for beating osteoarthritis pain
  • Lets you stay active by playing golf, walking and more
  • Works by offloading pressure onto the other side of the joint
  • Suitable for outer right knee pain and inner left knee pain
£149.99 (exc VAT)
£179.99 (inc VAT)
Available  Available
The Destination for Medical Supplies.
Call us on 020 7501 0593