11-121X-XX 11-121X-XX 479.99

OA Nano Knee Brace

Regular Price: £569.99

Special Price £479.99

Availability: In stock

Osteoarthritis Knee Brace is Light as Air

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Regular Price: £569.99

Special Price £479.99

Product Details

Product Description

Light as Air

Material science collides with innovation to create high-tech functional comfort in a lightweight design. The flexibility of the magnesium frame allows for an intimate fit while the revolutionary nano MAG material provides strength to off-load and provide pain relief. OA Nano, for mild to moderate knee osteoarthritis (OA), is designed for people to stay active and move freely, making patient compliance a reality.

Revolutionary in weight and profile, OA Nano™ offers industry-leading high-tech comfort and pain relief, ensuring that patients will choose this safe, non-invasive treatment over other options. Patients with knee osteoarthritis today have the opportunity to treat their pain and stabilize their knees with non-invasive, non-addictive treatment options. With the launch of OA Nano™, the world's lightest knee brace at 14.2 ounces, OA patients can take advantage of the same technology used by the world class athletes DonJoy is known for treating.

OA Nano is intended for mild to moderate osteoarthritis.

Features & Benefits

  • Unlimited Comfort - Malleable magnesium frame allows cuff adjustment and delivers patient compliance
  • Light as Air - Material science collides with innovation to create the world's lightest OA knee brace
  • Stays in Place - Contoured design enhances brace suspension for various levels of activity
  • Dependable Off-Loading - New world material "nano MAGTM" (on the loading side) provides strength when offloading
  • Clincally Proven - DonJoy's Adjuster technology off-loads (mechanically shifts weight away from the damaged pare of the knee) a little - or a lot.

Signs & Symptoms

Osteoarthritis can remain undetected until a significant portion of joint cartilage has worn away. Signs to look for include, but are not limited to:

  • Joint pain, tenderness, stiffness and locking
  • Joint swelling (bones around the joints may feel larger than normal)
  • Ligaments and muscles around a joint become weaker and stiffer
  • A cracking or grating sound when a joint is moved
  • Limited range of joint motion


  • Natural aging and wear and tear
  • Bleeding disorders that cause bleeding in the joint, such as hemophilia
  • Disorders that block the blood supply near a joint and lead to avascular necrosis
  • Other types of arthritis, such as chronic gout, pseudogout or rheumatoid arthritis
  • OA can develop within 10 years of a major joint injury. For example, a teenager who tears their ACL at age 15 could begin to develop OA as early as age 25 or 30

Risk Factors

Certain factors that increase the risk of developing OA include, but are not limited to:

  • Heredity
  • Being overweight
  • Joint injury
  • Repeated overuse of certain joints
  • Lack of physical activity
  • Nerve injury
  • Aging

Potential Complications

Other complications may arise from osteoarthritis. They include, but are not limited to:

  • Pain that causes stiffness and loss of movement ability
  • Muscle spasms and contractions in affected tendons
  • Fluid accumulation in the joint
  • Crackling noises in the joint
  • Hard bony enlargements, nodes, or bunions form around the joint
Size Chart & Fit Help

Measurement is taken using the thigh circumference 15 cm / 6 inches above the knee cap.

    Size Size in cms* Size in inches*
    X-Small 33-39 13-15.5
    Small 39-47 15.5-18.5
    Medium 47-53 18.5-21
    Large 53-60 21-23.5
    X-Large 60-67 23.5-26.5
    XX-Large 67-75 26.5-29.5
    XXX-Large 75-81 29.5-32

    Center Knee 1.Stand with your legs shoulder-width apart, legs slightly bent and leg muscles contracted.
    6 in Above 2. Measure up six inches from the center of your knee with a tape measure, as shown.
    Thig Circle 3. Measure the circumference of your thigh at the 6-inch mark, as shown.
    6 in below 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.


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  • Michael Valentine at 25/04/2014 16:09
    • My right knee was diagnosed with Stage 4 Arthritis with OA in the medial are. I'm currently using the OA Everyday brace and was looking for something with a little more support when I'm more active, but still in the same size weight as the Everyday. I also took my measurements which fall into several categories, Thigh-22", Knee-17", Calf-15". Which OA brace would offer some more support, still fit under most clothing and what size would you recommend?
    • Thank you for your question. The OA Adjuster would be a good brace for an active person. It is a bit lighter than the OA everyday and very comfortable. A large would be an appropriate size for you.
  • Kim at 04/03/2014 16:34
    • Thanks for responding to my first question - to follow up... You recommended the OA Adjuster - which one them... the OAAdjuster 3 for 679.00 or the OAAdjuster Osteoarthritis brace for 649??
      Thanks for clarifying!
    • Thank you again for your question. The OA Adjuster and the OA Adjuster 3 are going to be very similar. The Adjuster 3 will be slightly lighter. The upright with the adjustable hinge on the OA Adjuster 3 will be made of magnesium as opposed to Aircraft Grade Aluminum. Both are going to be recommended for active life styles and moderate to severe OA. The Adjuster will be more rigid and slightly heavier, it would be suggested for larger people, or people who may be in activities that involve outside contact (example: construction workers). Please let us know if you have any further questions.
  • Kim at 04/03/2014 01:19
    • Hi- I am curious about the right brace for me. I suffer from OA and have been diagnosed with a media meniscal tear as well as grade 3-4 chondrosis in the medial joint compartment. I am on my feet all day as a teacher and am looking for support in every day activities as well as moderate exercise and backpacking. Wondering which would be best, the nano, the OA Adjuster or e everyday. Thanks for your suggestions!
    • Thank you for your question. The OA Nano is a brace more commonly used for everyday activities as well as the OA Everyday. A more appropriate brace for you would be the OA Adjuster. This brace is recommended for active people with moderate to severe OA. Please let us know if you have any further questions.
  • Lizzie at 25/02/2014 10:25
    • Hello from the south of England!
      I am very small (5'1") and have very thin legs. 14, 14 and 10.75. I have only worn my new brace twice, and each time it has slipped down as I walk - a horrid feeling! Can you please give me some advice as to how I can stop it slipping down?
      Yours gratefully,
      PS I have an XS OA Nano DonJoy knee brace
    • Thank you for your question. You may need to attach the anti-migration that came in the bar with the brace. A file will be sent to your person email on how to attach that strap.
  • Thamikat at 30/01/2014 20:19
    • I have been diagnosed by my orthopaedic surgeon her in Valencia Spain as suffering from advanced chondropathy in the internal femorotibial compartment of my left knee, with small subchondral lesion. Sublaxation of the internal meniscus, presenting important altertion with small extension to the lower articular surface duto degenerative tear (in both meniscus. Chronic lesion of the collateral medial ligament. Articular hemorhaging, Baker quist. I will be undergiong treatment with plasma rich in growth factors, a treatment pionered by Dr. Mikel Sanchez successfully with athletes, e.g. Rafa Nadal. I am 65 years old and normally have played tennis 4-5 days a week and also ski when the season permits. I want to continue playing tennis. My question is whether tieh OA Nano brace is the most indicated for my condition, to alleviate pain, and permit the best possible rercovery. Thank you for any guidance you might be able to provide. Daniel Soltice
    • The OA Adjuster 3 would be a better choice, if you want to wear it to ski. The Nano is light wieght but not as durable as the OA Adjuster 3. The OA Adjuster 3 wieghs aprrox 20 oz. You would want to order it for the medial compartment. Here is the link
  • K Srinivas at 29/01/2014 11:03
    • I have early stages of OA affecting my both knees. I am using Don Joy Medial nano unloaders. My question is it it ok to use the treadmill with these unloaders or is there a danger of further deterioration.
    • Hi,

      The DonJoy OA Nano will still give the support needed for mild activity. This includes light work on the treadmill. Any walking or light jogging is what these braces are designed to help with. If you were looking to do more intense style of training, it would be recommended to move up to a more rigid framed brace like the DonJoy OA Adjuster 3. The more rigid frame can just hold up better to the demands of high intensity activity. (https://www.betterbraces.co.uk/donjoy-oa-adjuster-3-knee-brace)

      Have a good day!
  • Arthur latto at 18/01/2014 16:50
    • I requested feedback yesterday but now realize that I made an error in supplying my measurements. Could you please re-evaluate using the following corrected information.

      Wish to purchase Don Joy OA nano Knee brace sizes are a little of with measure ment chart, as follows: thigh 20", Knee 17", calf 16", please advise best option.
    • Arthur
      The meausrements are between a Medium and a Larg. We need to acomidate the knee width so go with the large, you can bend in the frame a little if it is slightly too big, your cal f should be fine but you can do the same for that as well if there is a litte extra room
  • Arthur G Latto at 17/01/2014 19:30
    • I want to order a DonJoy OA nano knee brace but my measurements are a little off on your size chart: thigh 29", knee 17"' calf 16". What do you advise?
    • Hello,

      I recommend you re-measure. Your thigh is an XXL, knee is XL, and calf is a L. This would require a custom knee brace. Re-measure and see if you get the same measurements.

      Thanks for Contacting Donjoy
  • Joe at 30/12/2013 18:13
    • I have a script for a right lateral off-load brace. I often wear a wetsuit for kiteboarding. Can the nano brace be worn over a 2mm wetsuit?
    • Joe,
      Thank you for your question. This brace can be worn over a wetsuit. Make sure to rinse the brace well after each use.
  • Shawnee at 21/10/2013 02:30
    • Hello, My dr. is ordering me a DonJoy OA Nano Knee Brace. Can I wear it in the water? I stand up paddleboard A LOT.
    • Shawnee
      Yes you can wear all of our braces in the water, Just make sure to rinse any saltwater from the hinges afterward.
  • Damon at 20/07/2013 13:23
    • I have strange knee shape it would seem. I want to purchase a Donjoy OA Nano, Right Medial. I have had right medial menisectomy, several scopes and a lateral release, I have OA and trying to fight of the inevitable.

      My knee measurements are as follows according to your instructions

      Thigh- 21 3/4
      Knee- 20
      Calf- 20

      What size and am I selecting the right brace.

    • Hello Damon,

      Here is where your measurement fall.


      Looks like you may have some atrophy of your quadriceps muscle. I recommend the XXL, the thigh and calf bar are malleable, you can bend the thigh frame to accomodate the smaller size.

      Have a Great Day.
  • laurel at 16/06/2013 21:28
    • I have the DonJoy OA Nano Knee Brace which my doctor recommended I use after my second knee surgery this May. It does help a lot with my walking. I do want to know if the brace is water proof. I was reading all the information about the brace and it doesn't say if I can get the brace wet.

      Thank you
    • Hello Laurel,

      Yes, you can use the brace in water. We recommend you rinse the brace each time you exit the water.

      Thanks for contacting Donjoy.
  • WHITIE at 13/06/2013 20:00
    • Using OA NANO How to adjust the 1,2,3,4,5,velcro straps to prevent the hinge from slipping below the knee ?

    • Hello,

      Below you will find links to videos, click on ACL Fitting. This is not your Brace but it's the same application. Each Strap is labeled, in order of application.


      If you have additional question please call a Product Specialist, 1-888-405-3251.

  • Matt at 07/06/2013 21:59
    • I have had a lateral release and 3 scopes to remove loose cartilage, especially on the back of my knee cap. After the third scope which was 12/2012 my knee hasn't recovered as it has in the past. Pain across the front of the knee, the outside, and the inside of the back of the joint that the doctor tells me it is due to the swelling that occurs when I engage in physical activity. It also hyperextends and gives out on me from time to time, and is showing the beginning signs of OA. Which brace would you recommend for me? Thanks in advance.
    • Hello Matt,

      Do you have medial or lateral OA or Both? Find out from your Physician which meniscus is affected.

      An OA Brace is not recommended for someone who has Bilateral OA. It would cause more pain. Since, an OA brace shifts the weight from the affected side of the knee to the healthy side.

      If you are not a candidate for an OA Brace I recommend a Soft Hinged Brace or a Rigid knee Brace.

      See Below.

      https://www.betterbraces.co.uk/donjoy-oa-nano-knee-brace https://www.betterbraces.co.uk/donjoy-drytex-neoprene-deluxe-hinged-knee-wraparound-sleeve https://www.betterbraces.co.uk/donjoy-fullforce-ligament-knee-brace

      For additional questions please call a Product Specialist at 1-888-405-3251.
  • Steve Prysunka at 11/05/2013 15:35
    • I have medial joint space narrowing. On my selection would I choose "medial"?


    • Hello, Steve -

      Yes, you would choose the option "medial" which will open up the medial portion of the joint.

      If you have further questions, please feel free to contact our product specialists at 888-405-3251.

      Thank you and have a wonderful day!
  • Luke kyi win at 10/05/2013 07:55
    • What are the different of OA full force brace?Can this brace push from degenerated cartilage side to healthy side?
    • Hello,

      Yes all of our OA Braces provide off-loading to mechanically shift the painful joint load from the degenerative compartment to the healthy compartment.

      Have a Great Day.
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