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Health & Beauty > Health Care > Supports & Braces 11-143X-X in_stock 474.99

DonJoy Female Fource ACL Knee Brace (Off-the-Shelf)

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DonJoy Female Fource ACL (Off-the-Shelf)

Designed for especially for women. Low profile, moldable aluminum frame with FourcePoint hinges.

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Perfect ACL Brace Specifically Designed for Women!

Females are 3-8 times more likely to sustain an ACL tear than males. In addition, over 70 percent of all ACL injuries occur during non-contact activities, such as cutting, jumping and twisting maneuvers. The DonJoy Female Fource by DJO addresses biomechanical factors that have been implicated in the high incidence of anterior cruciate ligament (ACL) tears in females. Females tend to perform cutting and landing maneuvers with their knees and hips in an extended and less protected position. The Female Fource incorporates dj Orthopedics’ (DJO) FourcePoint hinge technology, which has been clinically demonstrated to increase knee flexion angles, limiting the time the knee spends in at-risk positions during activity; therefore, providing females the protection they need.

The Female Fource is the first functional knee brace to come with a custom graphics sticker sheet to allow patients to personalize their braces to their own liking. In addition, with nearly 212,000 females being diagnosed with breast cancer and approximately 40,000 losing their life from the disease in 2005, DonJoy will be contributing to breast cancer initiatives.

DonJoy’s (DJO) OTS Female Fource is a lightweight, low profile functional knee brace designed specifically for females and is perfect for the active female returning to sport or the general female population returning to activities of daily living where an OTS brace is required.

Features and Benefits

  • Patented FourcePoint Hinge Technology: The only bracing technology clinically proven to protect the ACL
  • Reduces the time spent near full extension, or in the "at risk" position
  • Enhances the Four-Points-of-Leverage design by increasing the posterior load applied by the brace on the tibia
  • Improves a patient's natural gait by applying progressive resistance before reaching a firm end point
  • Four-Points-of-Leverage design for superior ligament protection and comfort
  • Medial Swooping Thigh Frame for increased medial thigh clearance
  • Press fit upper thigh rivets for a low profile, sleek design
  • Swiveling strap tabs to match anatomy through movement
  • Anti-Migration calf strap and Supra condylar Pad for brace suspension
  • Custom Graphics Sticker Kit to personalize the brace to your own liking
  • Lightweight (18oz)
  • Moldable frame for a custom fit
  • One-year warranty on frame and hinge

Note: This product is NOT recommended for PCL injuries or instabilities

***NOTE: This item can take up to 2 weeks to ship***

Shop our complete selection of knee braces or browse additional DonJoy products.

Take the measurement of your thigh and calf 6" above and below your kneecap using a flexible type tape measure.  Use the diameter you measure here to choose your size.

    Size Thigh Knee Center Calf
    XS 13" - 15.5" (33-39 cm) 12"-13" (30-33 cm) 10"-12" (25-30 cm)
    S 15.5" - 18 .5" (39-47 cm) 13"-14" (33-35 cm) 12"-14" (30-35 cm)
    M 18.5" - 21" (47-53 cm) 14"-15" (35-38 cm) 14"-16" (35-40 cm)
    L 21" - 23.5" (53-60 cm) 15"-17" (38-43 cm) 16"-18" (40-45 cm)
    XL 23.5" - 26.5" (60-67 cm) 17"-19" (43-48 cm) 18"-20" (45-50 cm)
    XXL 26.5" - 29.5" (67-75 cm) 19"-21" (48-53 cm) 20"-22" (50-55 cm)
    XXXL 29.5" - 32" (75-83 cm) 21"-23" (53-58 cm) 22"-24" (55-60 cm)

    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.


5 1

DonJoy Female Fource ACL (Off-the-Shelf) reviews

This knee brace has helped me have more confidence after my knee surgery, it hardly restricts me and i forget that it is even there. - Marge

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Fitting Instructions

Questions on DonJoy Female Fource ACL (Off-the-Shelf)

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  • From Jill at 1/20/2011 1:28 PM
    • is it okay to use this brace to swim in?
    • Hello Jill,

      You'll want to rinse the brace in fresh water after immersion.

      Also you may want to purchase a tube of DRY Teflon Lube, adding a drop in the back of the hinge after immersion. This step will keep the hinge functioning properly.
  • From April at 5/11/2012 8:38 AM
    • These say they have increased medial thigh clearance. Is the clearance increased enough to wear two together?
    • Yes you could wear two braces at once since the medial thigh portion is open.
  • From Andrea at 6/30/2012 11:55 PM
  • From Maddy at 11/30/2012 11:41 AM
    • Hi, how many sticker sheets are there and what do they look like?
    • Hello, Maddy -

      The brace comes with one sticker sheet. They are white hibiscus flowers to be placed on the thigh bar (optional).

      Thanks and have a great day!
  • From Ashley at 4/15/2013 3:04 PM
    • Is it also for MCL?
    • Hello, Ashley -

      Yes, this brace will also support the MCL.

      Thank you and have a wonderful day!
  • From Beth at 5/16/2013 8:14 PM
    • A year ago I tore my ACL, shredded my meniscus and suffered a high grade 3 sprain to my MCL. I had surgery and am now returning to Judo and Jiu-Jitsu. I'm a small woman (5' 0" , 113 lbs), and my 10 years of lifting weights have given me pretty big thighs (19"). Should I get this brace or the 4titude?
    • Hello Beth,

      I recommend the 4titude. it's our shortest brace. It is available in a short thigh, and short calf. It has a malleable thigh cuff, if you needed to adjust it to accomodate for your thigh.

      Thanks for contacting Donjoy.

      If you would like to speak to a Product Specialist please contact 1-888-405-3251.

      Have a Great Day.
  • From Rachel at 6/26/2013 12:25 PM
    • It says this brace is moldable. What does that mean? How should I go about doing this?
    • Hello Rachel,

      The thigh cuff and calf cuff may be ajusted if they are too tight or loose. To adjust the cuffs you will squeeze/pull-apart the uprights

      Thanks for contacting Donjoy.
  • From Ilsa at 6/27/2013 9:53 PM
    • I have an ACL rupture. I don't want to do surgery yet. I am doing physiotherapy to straten my knee. Is this brace the best choice for me? I am 5'8" 130 lbs.
    • Hello Llsa,

      I recommend the FullFource, this is an ACL Brace, with a Fource-Point Hinge. This type of hinge provides support to the ACL, by dampening the last 25 degree's of extension.

      Thanks for Contacting Donjoy.
  • From Becky at 8/6/2013 9:52 AM
    • I am a 51 y.o. female who had surgery last week for a medial meniscal tear and ACL probing and "trimming". I had ACL repair 26 years ago and it appears the ACL is now "deficient" as my Dr. quoted. It is there but non-functional. He doesn't want to do a revision d/t lengthy rehab and my age. I primarily do cardio/ weights at the Y, walk, and occasionally golf. I am 5'11'. What brace would you recommend for this scenario? I like the low-profile type if possible.
    • Hello Becky,

      I recommend the Full-Fource, its the lightest ACL brace we currently have, and it features our New Fourcepoint Hinge. Or if you would also like a OA Hinge that offloads your damaged meniscus we have the OA FullFource, of Nano.

      The OA Braces off load the meniscus by opening up the joint space, in your particular case the lateral hinge will apply pressure on the lateral side of knee to open up the joint space and take the pressure off the medial knee.

      Thanks for Contacting Donjoy.
  • From Clare at 10/8/2013 4:40 AM
    • I measure between two sizes! What should I do?
    • Clare,
      Not knowing your measurements, it would be recommended you go with the Knee Center measurement. That is the priority area for the fit and comfort. You can call Product Support at 800.553.6019 for assistance in helping you choose the correct brace for your situation. Thank you for contacting DJO.
  • From chris at 10/14/2013 4:31 PM
    • Will insurance plans pick up any of the cost for any of the more expensive knee braces?
    • Chris,
      It is common for insurance companies to cover some or all of the cost of a knee brace (depending on your plan and coverage). However, it is required that your doctor prescribe you with a knee brace. You can also contact our insurance division at 800.548.3370 for more questions pertaining to insurance coverage.
      Thank you for contacting DJO.
  • From sarah at 10/27/2013 11:49 AM
    • Hello,

      About a month ago partially tore of my MCL (grade 2) roller skating. I was also told that I also have extension in my ACL which I believe this is a +10 yr old skiing injury, as it has for many years been a bit weak and unstable and didn't exhibit pain locally this time. I have so far escaped without surgery as I still have some ACL function and they believe my MCL will heal. While skating (for roller derby which is a contact sport) we must also wear thick knee pads to protect the front of the knee. Are these knee braces able to be worn underneath such a knee pad? (example shown here, they can be strapped on: Is this the correct knee brace for me or should I get a hinged knee brace for moderate instabilities. I am considering my options for returning to the sport when I am fully healed. Thanks
    • Sarah,
      The knee pad should fit well over the brace. You will have exposed metal on the frame above and below the pad. Depending on the rules of your league, that may be something to consider.
      The fullForce is a great brace for you ACL/MCL injuries. The hinge up rights will provide stability to the MCL and LCL. The strapping sequence along with the frame (out 4-points of leverage) will offer stability to the ACL. The FourcePoint hinges are designed to react during leg extension and offer an increasing resistance in the last 35 degrees of extension, in order to reduce extension shock and increase posterior tibial loads. The hinge has three adjustment settings to vary the amount of resistance to meet the specification of the physician's protocols and the patient's comfort.
      Because of you are involved in a contact sport you may want to look into the Armor with the FourcePoint Hinge. The Armor is our most durable brace and specifically recommended for contact sports. It is thicker than any other brace we make and therefore a stronger frame.
      Thank you for your question and for contactin DJO
  • From Mary at 11/5/2013 8:48 AM
    • Hello,
      I tore my ACL and have already done restorative surgery, but I am handball athlete, a sport that have high physical contact. I wonder if this brace is ideal for me because I'm not sure if it can hurt other players. I am 5 '3 "118lbs.
    • Mary,
      The Female Fource ACL would be a good brace for you. It is recommended that someone under 5’4” so with a brace that has short calf, which the Female Fource does. This brace also has the FourcePoint hinge which will give added protection to your ACL. The FourcePoint hinge is designed to dampen the 35 degrees of extension and keep the amount of time the ACL is in at an “at-risk” position. With this brace (as with all of our rigid braces) you have the option of a sports cover which would go over your brace and offer padding around the frame and hinges, this is often used in contact sports. Thank you for contacting DJO.
  • From Winnie at 2/5/2014 7:19 PM
    • Can you give better instructions on how to adjust the hinges? What the little pieces are for and how to place those in if needed? Thanks.
    • Winnie
      The flexion /extension stop kit is provided so if you need to restrict motion you can. My first suggested is that you make sure your health care provider wants you to use those stops. They come standard with the brace but most of the time are not used. The instruction booklet that came with the brace should show you how to change the flexion stops. That brace has a fourcepoint hinge so only flexsion stops can be added to it. That means that you would be limiting how much you bend you knee. If you still need help with this you can call product support at 888-405-3251
  • From Mari at 2/27/2014 9:25 AM
    • I tore the ACL, MCL and meniscus of the right knee back in 2001 which warranted surgery. I was put in a knee brace back then, but have not worn one in over 10 years. I am now ballroom dancing and find I am having difficulty executing some of the dance positions with my right knee. I am also very active with softball/tennis, workout and ride motorcycles. I am a female, 5'5" and 130lbs. What is the best recommended brace for me?
    • Mari
      Either the Female Fource or the Fourcepoint knee braces will work fine for what you would like to do in them. They both have our clinically proven technology to help reduce re-tear of the ACL by 50%. They are light and low profile.
  • From kathy at 5/7/2014 12:48 PM
    • What brace do you recommend for a 14yr old, still growing, female, post ACL Reconstruction to return to competitive tumbling and trampoline ? She is about 5'4" and 115 lb now.
      What is the difference between the custom Female Fource and the non custom version ?
    • Kathy
      Either of those braces would be sufficient for the 14 yr old. The difference is that the custom is measured only for one person, has a lifetime warranty on the frame and hinges but does have minimum thigh and calf circumferences that we can make the brace for. The Off The Shefl version is already made and comes in 7 sizes, so an XS might fit someone who doesn't meet the minimum size for the custom, the warranty is for 1 year on the frame and hinges.
  • From Julie Maguire at 6/1/2014 5:08 AM
    • I'm about 3 weeks post op ACL surgery and I want to go to the beach. I'm in the female fource point brace. Can I wear this brace to the beach?

      Also, I was interested in extra straps and pads. How can I tell what size to order for my brace?
    • You can wear the brace to the beach just rinse the brace if you go in the water and if there is a chance of getting sand in the hinge. You can find the size of your brace on the inside of the liner at the top of the thigh. Pull the liner away from the framee and look on the inside of the liner
  • From Alex at 6/23/2014 11:34 AM
    • My daughter is 4 weeks after ACL reconstruction (with hamstring autograph) after soccer injury. She is 5'1'' about 105lbs. Is this brace the most suitable for her recovery and for using when she returns back to playing soccer? Or which ither brace? The brace have to fit over the shin guards.
    • Alex
      I would suggest the Custom Defiance III knee brace for your daughter. This is our best knee brace after ACL reconstructioin, it is custom made for just your daughter. This brace with the fourcepoint hinge will support her leg during rehab and she can wear it while playing soccer when her doctor releases her for activity. The brace can be made with a short thigh and calf cuff because of her height and it will work with her shin guards. Also if she get s the brace now she can get 1 free re-make within 4 months if her muscles get back to normal size and the original brace is too tight. The brace has a carbon composite frame which is the best for contact sports and it has a lifetime warranty on the frame and hinges. If you would like to go through insurance for this brace you can contact your local DJO sales rep here: They can do the measuring and contact the insurance company to get pre-authorization then order the brace for you. Here is the link to the Defiance:
  • From Sky at 8/10/2014 1:18 PM
    • I am a 16 year old girl. It has been about a year since my ACL reconstruction after a soccer injury. I want to return to playing soccer this year. My knee is mostly recovered, I just want extra support to decrease the risk of re-injuring my knee. What are my best options for braces?
    • Sky
      I would suggest the DonJoy Full Force Ligament Knee brace. It has a light wieght aluminum frame and is very low profile. It is similar to the Female Force but it has our new lower profile hinge on it. The female force's hinge is bulky.
  • From Ana Karen at 9/7/2014 7:39 PM
    • I am a 17 year old basketball player, I recently had surgery on some cartilage I had chipped and the doctor discovered I was not born with an ACL. I am 5'7 and I weight 114 lbs. Which knee brace is the best for me?
    • Ana
      You will want to get a brace that has our fourcepoint hinge to best protect the knee. The Female Fource is a good choice as well as the Full Force Knee Brace.
  • From Natalie at 9/26/2014 8:10 PM
    • 3 weeks ago I was bucked off a horse. Had an MRI done a week ago and came back saying I have a torn ACL & MCL. My doctor wants me to wear a brace for 3-4 weeks than 6 weeks PT. My MCL is a 2 degree, and don't really know how bad my ACL is. Do you tink this brace will be OK for me?
    • Natalie
      The Female Fource is a good brace for both the ACL and the MCL. It is light wieght and has our fourcepoint hinge which is the best hinge for protecting the ACL. The hinges will protect the MCL
  • From Marisa at 10/26/2014 1:23 PM
    • A year ago I injured my knee playing volleyball and got an MRI and was told I have multiple tiny tears to my ACL and MCL. They said that it was minor enough to not have to do surgery immediately but they would tear and surgery would be needed. is this a brace that would benefit/help me? If not which knee brace would help? Thank you!
    • Marisa
      The Female Force ACL brace is a good choice, another choice is the Full Force Ligament knee brace which is similar to the Female Force but has our lower profile fourcepoint hinge. The lower profile hinge is not as bulky as the hinge on the female force
  • From Megan at 11/12/2014 6:50 AM
    • I have a 4 year old ACL injury. I haven't had surgery. I'd like to return to soccer, but still experience occasional lateral instability. I will also use the brace for snowboarding. I'm a 5' 4" female. Which brace do you recommend?
    • Megan
      The Don Joy Armor Knee Brace with Fource point hinge would be the best choice for someone who tore the ACL but wants to play soccer and Snowboard. The frame is double thickness aluminum so it is straong enough to withstand any possible damage. The hinge is designed specifically for ACL injuries. You will want to get the short calf.
  • From ASHLEY at 11/12/2014 8:55 AM
    • HI my name Ashley I'm 21 and I play collage basketball. I torn my ACL, PCL, MCL in my left knee in a game last year :,( . I also barrel race for my rodeo team in collage and I also in the rodeos tryin to go pro. this this the best brace for me to have wear on my horses when I race. I have a teammate that torn hers in the left knee.we play and race together. So I tried hers on to see if that one be the one I need we have the same Measurements. hers is DonJoy FullForce Ligament Knee Brace and it so big ( as in stick out to far on my knee) and uncomfortable for me and it kinda hurt me while I was ridin. so all said and done is this the best brace for me to play ball and barrel race with out hurtin me because I turn to the left around the barrels and I hit the barrles and is there something I could put over the brace to help protect it and from hitn my other knee
    • Ashley
      If you are going to be hitting things while riding then I would reccomend wearing the Don Joy Armor Knee Brace with the fourcepoint hinge. The brace is a stronger frame than the Full Force so it will not break it it is being hit. The fourcepoint hing on the Armor is low profile so it will not stick out as much as the Female Force which has the older fource point hinge on it. You will need to measure your leg and use the size chart to get the best size for you
  • From Jennifer w at 12/26/2014 9:18 AM
    • I have a lcl grade 2 and a meniscus tear with instability of my ACL would this brace work? I play a lot of sports and kickboxer so I have bigger legs would this work or should I have a custom made one like I did years ago for my ACL?
    • Jennifer
      The female force will work for your knee with the injuries you have. If you have a older Custom Defiance for this knee you can use that brace or get it re-made if you need to to be re sized.
  • From Mandy at 1/8/2015 4:59 PM
    • It says it has a moldable frame. Do I just bend the frame to create a better fit or what is the best way to do this? I need it to be a little tighter around the calf because it rubs a lot.

    • Mandy
      You can either bend if too big or pull the frame if too small. You will not break it so go ahead and mold it that way
  • From Ginny at 1/31/2015 5:40 PM
    • I'm in my 50's and have a very old Don Joy that I use to play tennis. (Competitive) I've had 3 surgery's. The last being over 20 years ago. This is preventive and security. Recently moved so don't have an orthopedic to consult . I just want to replace the brace I have. Basically no medial meniscus and compromised ACL issues. Will this brace work for me? If not, what do you recommend?
    • Ginny
      If you have a Don Joy Custom Defiance, we can get you in touch with your local Don Joy sales rep and get it re-measured and re-made for a $350 charge. Find your local rep here:
      If you do not have the custom brace then the Female Force would be a good brace for you to wear
  • From Samantha at 2/14/2015 5:29 PM
    • My daughter has loose ligaments, and her knee tends to dislocate during physical activities, and tends to get injured a lot. She needs a brace that will allow her to play her sports (soccer, lacrosse, and track) at full effect. Is this brace a good fit for her?
    • Samantha
      If you daughter's knee dislocates then she will need a brace to keep the kneecap stable while she is doing activity. I would suggest a patella stabilizer with hinges such as the Tru-Pull Advanced system with hinges. This brace will keep the kneecap tracking in its correct postiion and help reduce the dislocation that is happening. The brace with hinges will give her some medial and lateral protection of knee joint as well.
  • From Tasha at 3/20/2015 12:11 PM
    • My daughter tore her ACL and meniscus Nov 2013 and had reconstructive surgery(hamstring graft) to repair both. She has now returned to Power Tumbling/Cheerleading and she runs track as well. Which brace would you recommend to help with the shock absorbency and protection of her ACL going forward?
    • Tasha
      I think the Female Force or the Full Force Ligament knee brace would be a good choice for your daughter. Both will protect the ACL from re-injury, with our clinically proven fource point hinge and four points of strapping system. The difference between the two is that the Female force is a bit of an older brace so the hinge is our older version of the fource point hinge, which is not as low profile as the Full Force. The Female Force also comes with decals to stick on the frame of the brace.

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