DonJoy
Female Fource ACL (Off-the-Shelf)
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Is the Female Fource Brace right for me?
For female athletes returning to their sport after an ACL injury. Try our Brace Advisor for personalized product recommendations to meet your needs!
ACL Brace Specifically Designed for Women!
Females are 2-10 times more likely to sustain an ACL tear than males. 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. The Female Fource incorporates DonJoy Orthopedics’ (DJO) FourcePoint hinge technology, which has been clinically demonstrated to increase knee flexion angles1, 2, limiting the time the knee spends in at-risk positions during activity; therefore, providing females the protection they need.
The Female Fource is a functional knee brace that comes with a custom graphics sticker sheet to allow patients to personalize their braces to their own liking.
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: 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)
- Aluminum frame is pliable and can be adjusted to a custom fit
- One-year warranty on frame and hinge
Note: This product is NOT recommended for PCL injuries or instabilities
Replacement Parts
Need new straps or pads? Shop DonJoy Female Fource replacement parts for full kits and individual condyle pads, undersleeves, straps and more.
Shop our complete selection of knee braces or browse additional DonJoy products.
1. Lin CH, Liu H, Garrett WE, Yu B. Effects of Knee Extension Constraint Brace on Selected Lower Extremity Motion Patterns During a Stop-Jump Task. Journal of Applied Biomechanics.2008;4:158-165.
2. Stanley C, Creighton R, Gross M, Garrett W, Yu B. Effects of a Knee Extension Constraint Brace on Lower Extremity Movements after ACL Reconstruction. Clinical Orthopaedics and Related Research. 2011;
469(6):1774-1780.
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) |
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1.Stand with your legs shoulder-width apart, legs slightly bent and leg muscles contracted. |
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2. Measure up six inches from the center of your knee with a tape measure, as shown. |
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3. Measure the circumference of your thigh at the 6-inch mark, as shown. |
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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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