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DonJoy SERF Strap

A revolutionary approach to the treatment of patellofemoral pain.

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$79.99
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    20

A Revolutionary Approach to the Treatment of Patellofemoral Pain

Developed in conjunction with Dr. Christopher Powers at the University of Southern California, the S.E.R.F. Strap™ is the FIRST patellofemoral brace designed to treat patellofemoral pain stemming from abnormal hip motion(s). The S.E.R.F. Strap™ utilizes a unique 3-point hip-leg anchor to treat patellofemoral pain caused by excessive hip internal rotation, adduction, and/or knee valgus. Made of thin Breathe-O-Prene®, the S.E.R.F. Strap™ is lightweight, breathable, and designed to be worn underneath clothing. The S.E.R.F. Strap™ can be used to control abnormal hip motion during leisure/sport activities and as a training tool in the clinic. The DonJoy S.E.R.F. Strap™…Ride the wave of change!


Traditional treatment of patellofemoral pain (PFP) has been based on the premise that abnormal patellar tracking and/or malalignment is the primary cause of symptoms. While this theory may hold true in some instances, it is not always the case. In fact, the true etiology of PFP remains somewhat controversial… until now.


Research conducted by Dr. Christopher Powers at the University of Southern California has suggested that abnormal patellar tracking may be the result of excessive internal rotation of the femur (i.e. the femur moving under the patella). 1dj Ortho has worked with Dr. Powers to create a brace that treats the patient’s condition at the source…the hip. The S.E.R.F. Strap™ stabilizes the patellofemoral joint and reduces pain through external rotation of the femur.


The S.E.R.F Strap™ is the first patellofemoral brace designed to treat PFP stemming from abnormal hip motion(s). If you suspect that your patient’s PFP is related to poor proximal control, the S.E.R.F Strap™ is the right choice. The S.E.R.F. Strap™ can be used to control abnormal hip motion during leisure/sport activities and can be used as a training tool in the clinic.


S. E. R. F. = Stability thru External Rotation of the Femur Indications

  • Patellofemoral or anterior knee pain resulting from excessive hip internal rotation, adduction, and/or knee valgus
  • Chronic lower extremity conditions resulting from abnormal hip motion(s) and/or poor proximal control

Features and Benefits:

  • Unique 3-point hip-leg anchor reduces PFP by externally rotating the hip
  • Thin Breathe-O-Prene
  • Contoured design limits migration during activity
  • Re-Application markers for easy re-application and improved patient compliance
  • 6 month warranty

See height-weight index chart below for sizing.

4 1

DonJoy SERF Strap reviews

Alex MARREJNFNJEENJF
I really really really really really liked this! you can wear it underneath clothes and it really truly works! I used mine because I had a labral tear in my hip and I guess the doctor said it would strengthen a muscle that would make my pain go down. It definitely did! This brace is the reason I can walk with ease now! Best 80 dollars ever spent. - Alex MARREJNFNJEENJF

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Questions on DonJoy SERF Strap

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  • From Janet at 7/19/11 4:37 PM
    • I am about 10 weeks after left total knee replacement surgery. My left knee wants to lean to the outside instead of going straight. ( Had my right knee done 3 years ago and it tracks just fine. )..Is this a weak muscle or is there a brace I can wear to help speed this recovery up.. What will make this right ?? More exercise ?? Which muscles ??

      Thanks, Janet
    • you will have to check with your doctor on that to make for sure, but normally that can be the result of a quad muscle weakness. If it is your patella that is tracking off, you can do a brace to help with the patella tracking issues. If it is your entire knee that is leaning to the outside a different brace maybe needed. But again you should check with your doctor on what they recommend.
  • From Katie at 7/22/11 7:13 PM
    • If i have dislocated my knee cap and i am in volleyball, i wanted to know if this would be good for my knee. I really need a knee brace but i cant find one. Would this be good?
    • This brace is a great tracking brace, but it is not the best for Dislocation patellas. I would suggest looking at either the Tru-pull Lite, or the Tru-pull Advanced system, either of these will be a better choice for you.
  • From sharon at 8/16/11 10:54 AM
    • hello,

      my daughter need this serf brace. We live in Israel. Do you know how I can find someone that will send this to Israel?
    • We do not ship to Israel through betterbraces.com, please contact:

      Israel
      Distributor # 1: Siram Ltd.
      Address 1: 28 Gershon St.
      Address 2:
      City: Tel-Aviv
      State:
      Zip: 67017
      Country: Israel
      Contact Name: Mr. Danny Grossmann
      Phone: +972-3-624-1180
      Fax: +972-3-624-1185
      Email: siramltd@netvision.net.il
  • From Jessica at 9/29/11 10:19 AM
    • I've been diagnosed with patella femoral syndrom in my right knee. I enjoy running and being active, and I have been working on trying to build quadricep strength to improve it, but I still have pain some days. Would this help me to improve my knee stability even more by building the muscles or would it just support my knee and weaken the muscles? I obviously want to strengthen my knee so it can get better.

      Thanks,
      Jess
    • Hi Jess,

      Patella Femoral Syndrome can be caused by many thing in the body including muscle weakness, tightness, and/or biomechanics. Depening on the casue of your injury the S.E.R.F strap could help. It basically acks as a cue for you gluteal and hip muscles to fire when they are supposed to. It will not weaken the muscles you are trying to strengthen and can be a good tool to help with proper mechanic at your hip and knee while running and doing your strengthening exercises.

      There are other braces that may help your knee pain. The DonJoy Tru-Pull Lite, for example is beneficial if you knee cap is not tracking as it should. This can also be a result of muscle weakness, which it sounds like you are working on. The buttress and straps help align the knee cap in a proper position and can help with decreasing pain.

      http://www.betterbraces.com/donjoy-tru-pull-lite

      I hope this information has helped.

      If you have additional questions please call 1-800-533-6019

      Have a great day.
  • From Runnergirl at 7/31/13 5:48 PM
    • Hello I'm a runner. I have been dealing with loss of control my left leg. When I get about 10 minutes into run and my leg starts feeling almost loose and all over the place but no pain invoIved. I was wondering SERF strap may help?

    • Hello,

      The S.E.R.F. Strap is suited for patients with patellofemoral or anterior knee pain resulting from excessive hip internal rotation, adduction, and/or knee valgus. The S.E.R.F. Strap can be used to control abnormal hip motion during leisure/sport activities and can be used as a training tool in the clinic.

      Thank You for Contacting Donjoy.
  • From jean at 9/10/13 7:25 PM
    • are there any video instructions on how to put on serf strap.
    • I am sorry but there is no video of that. If you call customer care they can email you the instructions for the SERF strap.
  • From Jill at 1/7/14 3:09 PM
    • I am looking for a brace for a patient (hemiplegic) who has excessive EXTERNAL rotation of the leg and this would be perfect if I could use it in reverse. Is it possible to reconfigure the straps to encourage internal rotation?
      thank you
    • Jill
      You can use the strap but you must get the opposite leg brace for it to work. for example: if you need it for the left leg buy the right brace
  • From Steve at 1/25/14 8:21 AM
    • Can the brace be ordered with straps for both legs?
    • you would need to order two braces for both legs
  • From Sandy at 2/3/14 8:33 PM
    • My daughter has a possible labral tear in her hip joint. Would this strap give her relief from pain until she can get further medical care?
    • The SERF strap will bring her hip into externa/outwardl rotation so if she has no pain in that motion it could help
  • From maghraby at 2/17/14 12:59 AM
    • is it avilible for 3 years old girl. am in sweden now for two days then will travel to egypt. Do u have any store in these countries thats i can expect the strap before buying it. Thank you
    • The S.E.R.F. strap will fit a person as small is 90 pound and 4’10”. If purchased direct we can sometimes do “Special” makes with a minimum thigh measurement of 10” (measurement is taken 6” above the center of the knee). You would want to use the following link to find the DonJoy rep in your area to contact. http://www.djoglobal.com/customer-care/worldwide-contacts
  • From nparker at 2/18/14 9:46 AM
    • Is there a billing HCPC code for this brace yet? If so, what do you recommend?
    • Thank you for your question. The suggested HCPC for the DonJoy S.E.R.F. Strap is L2999.
  • From Crystal at 2/22/14 12:25 AM
    • My 8 year old son has cerebral palsy and his left foot turns inward really bad could this brace help keep his foot in a more forward position we aresupposed to be flying down to shriners hospital but cant afford it right now he has a brace he wears on his foot to keep him from walking on his toes and do these come in childrens sizes or do you have anything that might help him
    • Thank you for your question. The S.E.R.F. Starp will help to externally Femur. This brace may help if the rotation problem were originating at the hip. The smallest size we have is for a person who is 4’10” and 90 pounds.
  • From Kelsey at 3/2/14 3:00 PM
    • I have torn my labrum twice and still have pain in my hip. Would this brace help reduce the pain/ help prevent me from tearing it a third time?
    • Kelsey
      The SERF Strap is for knee pain and it rotates the hip outward so if you have less pain with your hip rotated outward it will help reduce pain but it will not prenvt you from tear your labrum
  • From Coach Richard at 4/4/14 3:23 PM
    • Will the serf help prevent reinjury of mcl? He needs extra support with his knee brace when he does a lot of lateral movement for football. It seems to affect him when he has too much internal hip rotation for lateral movements.
    • Thank you for your question. It would be suggested to get a brace that has hinges to protect the MCL during football. A rigid hinged brace would be best as it will help prevent some of the rotation.
  • From Jess at 4/14/14 2:22 AM
    • Hi

      I have hypermobility in most of my joints. My hips are unstable and as a result, cause pain in my knees.

      Would the serf help? Are you able to wear two at the same time?

      Thanks
    • The SERF Strap pulls the hip into outward rotation which brings the knee into normal alignment. This is for pain around the knee. I would not reccomend wearing two on the same leg.
  • From Tricia at 6/23/14 6:10 PM
    • My 11 year old daughter has patellar tendonitis. However, her outside hips are proportionately weak, forcing her to pronate in during her gait. We believe this is causing the extra stress on her knee. Will this brace help as she re-strengthens her hip and help those muscles retain that memory?
    • Tricia
      This brace will externally rotate the hip so that the medial quadricep will fire and start to strengthen while doing activities. a weak medial quad can be the reason there is knee pain.
  • From Jen at 7/28/14 11:32 AM
    • Does this product contain latex?
    • Jen
      It does not contain latex but it is neoprene
  • From David Boggs at 8/6/14 5:59 PM
    • Noticed that your size chart height stops at 5' 10". I'm 6' 1", 250 lbs. My thigh size is 29" and my waist is 40". Not sure your size large would fit. Suggestions?
    • The large should fit you.
  • From Jennifer at 8/10/14 11:10 AM
    • I am 5 ft 2 in and weigh 152 lbs and am not sure whether to purchase the small or the medium. Thanks.
    • Jennifer
      You would order the medium
  • From Steve at 8/11/14 12:38 PM
    • 1) I have knee pain (nearly constant swelling on the medial patellar side) and hip alignment issues. Before I stretch and get going, my knee feels tight from surrounding muscles. I have trouble extending it. My knee and foot is also rotated to the outside while my other leg is straight. After I get going, I get a little better aligned but sometimes I fall into valgus. The knee pain has been unreal all year but a little better with my glute strengthening.
      Does this brace help keep proper alignment and will that allow proper muscle activation so they eventually lengthening and work properly to free up my painful knee and hips?
    • The SERF Strap will correct abnormal hip internal rotation Aduction and Knee valgus. So the strap corrects these positions and helps your hip and knee to align correctly or more of a straight line. You can try the stap and see if it helps correct your knee position. we do have a 90 day money back guarentee if it does not help.
  • From Vera at 8/30/14 6:51 PM
    • If you are on the line between small and medium, which size is better? I am assuming small. 5'9, 135-140

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