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DonJoy Fource Point Knee Brace

Fource Point Technology was developed to further protect the ACL and enhance the Four Points of Leverage brace design.

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Ideal Application

Fource Point Technology was developed to further protect the ACL and enhance the Four Points of Leverage brace design. The patented Fource Point 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. Available in Standard Calf Length only.

The Fource Point is ideal for patients returning to sports specific activity after ACL reconstruction, an ACL deficient knee or for prophylaxis.

Features and Benefits

  • Adjustable resistance offered in 25°-0°, 35°-10° (factory setting), 45°-20°, 55°-30°, 65°-40° (range indicates the flexion angle at which resistance begins, the second number is the terminal end point.)
  • Gradual soft stop to extension
  • Enhanced Four Points of Leverage design
  • Standard anti migration Supra Condyle pad
  • 7 sizes and three lengths
  • Moldable aluminum cuffs for custom fit
  • Removable thermal-formed liners and strap pads
  • Flexion/extension stops
  • One-year warranty on frame and hinge / six months on softgoods
  • Available in Standard Calf Length only

***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.


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Fitting Instructions

Questions on DonJoy Fource Point Knee Brace

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  • From eric at 7/25/2012 5:25 PM
    • will this brace protect MCL instability?
    • This is a rigid brace so it will give support to both your MCL and LCL.
  • From Arnold at 8/3/2012 6:53 PM
    • Planning to play beach vball. Will this be ok to use in a sand environment? Will it damage any of the joints? How would I clean it, or what is the best way to clean it?
    • Hi,

      It will need to be rinsed with fresh water after use and the hinge lubricated with a dry-teflon based lubricant. We also recommend ordering a brace cover for extra protection from the sand.

      Have a nice day
  • From Sherwin at 5/20/2013 6:21 AM
    • I have no knee injury, i just wanted to prevent it from happening. my current sport is wakeboarding, that's why i bougth a fource point knee brace. What will be the perfect setting for me for this fource point?
    • Hello, Sherwin -

      I am a little unclear about what you mean by "the perfect setting" on your fource point knee brace. We recommend that you call our product specialists at 888-405-3251 to further discuss any questions about the product and its use.

      Thank you and have a wonderful day!
  • From Maddy at 5/29/2013 4:45 PM
    • I tore my lateral meniscus (horizontally and through the anterior horn...), I am waiting to have surgery (repair) for a couple of months - Would this brace still be appropriate to use with this type of injury?
    • Hello Maddy,

      Are you an athlete? If so, do you plan on returning to your activity after surgery? There are some questions I have that would help me make a better brace recommendation.

      We have OA braces, that provide off-loading specific to the meniscus. I would recommend a Lateral Off-loading OA Brace to take the pressure off your lateral meniscus prior to and after your surgery. Below you will find links to the braces.

      Please call us to speak to a Product Specialist. 1-888-405-3251.
  • From Shannon at 6/27/2013 7:07 AM
  • From Austin at 8/12/2013 11:24 AM
    • I was wondering if the fourcepoint would be good to use for football. I've had MCL and Medial Meniscus repair 10 weeks ago and I'm going to be back at full activities in a week. I've seen that other companies make "high impact" braces. Would this brace withstand a hit from a 250 pound lineman hitting it (because I play defensive line) I want to make sure that the brace won't take any extreme damage after getting hit.
    • Hello Austin,

      I recommend the Armor Knee Brace, this is a contact knee brace. Used in football, the fullfource is for skill positions that won't see alot of contact.

      Thanks for Contacting Donjoy.
  • From Satish M at 11/22/2013 6:52 AM
    • Respected Doctor,
      My father is suffering from osteoarthritis with mild to severe pain. could you please suggest me the appropriate knee brace ?
    • Satish,
      DonJoy has a line of Osteoarthric (OA) braces. If your father’s pain is specific to one side of his knee (example: His arthritis is in his left knee on the outside), these braces would be ideal. The Adjust 3 is a popular brace along with the Nano and the custom made Defiance. If your fathers pain is more wide spread, or not specific to one side (Example: all over the knee or in the front around the knee cap), He can look at the DonJoy Deluxe Hinged Knee. This brace will give compression and offer the support of the upright hinges. Thank you for your question and for contacting DJO.
  • From Jerry Rehse at 11/27/2013 12:38 PM
  • From Tern Bartolovic at 1/31/2014 12:57 PM
    • Hi. I am using a LoPro FourcePoint Hinge for some LCL and a complete ACL tear prior to surgery. While engaged in 'agressive' aerobics my knee popped. I kept going and had significant swelling the next day. Several weeks later I ate it skiing and felt several pops thru my knee and had relevant swelling the next day. Am I wearing the brace too loose or expecting too much? I do end up with constriction marks on my leg from the straps but it is never uncomfortable. The brace was measured to be custom fitted by a physiotherapist.
    • Thank you for your question. It would be advised that you contact your physician or DonJoy rep regarding your fit. You can use the following link to type in your zip code and locate the DonJoy rep in your area. If you have any questions please feel fre to contact product support at 888.405.3251.
  • From Yallo at 2/12/2014 7:52 PM
    • I play basketball and i have a acl injury. ( not surgery yet)
      So i
      Want back to play, wich one do You recomend?
    • Any of our rigid knee braces with the FourcePoint hinge will be suitable. The FourcePoint Knee Brace or the FullForce Ligament knee brace are good choices.
  • From frank randazzo at 4/24/2014 1:18 AM
    • I like to bowl but years ago my knees gave out from under me while bowling. I had an operation where both of my knees had to be shaved of rough surfaces until they were smoothed out. Can one of these braces keep me from falling again? I Still need lube every 6 months to keep from drying out my joints.
    • Frank
      I would suggest the Playmaker for your knees while bowling. This brace will give you the support you need and protect the knee from injury.
  • From Varad Datar at 8/31/2014 5:20 AM
    • Hi
      I am a Rugby player and i ruptured my ACL again and am not opting for a surgery. I still wanna play rugby (not professional, just local tournaments). Can you suggest me a knee brace.
    • If you are able to wear a knee brace, then the fourcepoint is a good option because of the fourcepoint hinge that will help protect the knee without an ACL. That hinge helps to slow down extension of the knee which will help to protect it more than a standard hinge.
  • From Julian at 9/24/2014 7:04 AM
    • Hi,
      I tore my ACL for the second time playing tennis. I would like to get back to tennis. Do you recommend this brace?
    • Julian
      The fourcepoint brace is a good choice to wear while playing tennis
  • From Julian at 10/4/2014 10:48 AM
    • Hi, what is the weight of this brace comparing to defiance and armor?
    • Defiance: 22 oz
      Armor: 23 oz
      Fourcepoint: 20 oz
  • From David Shaffer at 1/21/2015 6:19 AM
    • I tore my ACL and did not have surgery. I have used this brace while alpine skiing for 10 years and experienced no pain. This year I am experiencing leg pain when putting weight on one leg, but not while skiing. How do I determne if the brace is worn out and needs replacement?
    • David
      As long as the brace is not damaged in any way it does not need to be replaced. I would suggest seeing your physician if you are having pain in your knee.
  • From Sierra at 3/11/2015 11:13 PM
    • hi
      i had ACL surgery a little over a year ago. i play basketball and have been playing with a brace for 6 months. how long do i have to wear the brace before i can play without it???
    • Sierra
      That is a question for your physician

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