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Donjoy 4Titude Knee Brace



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ACL Sprain

Donjoy 4Titude Knee Brace

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USD 11-08**-*

Availability: In stock

Donjoy Authorized
13462 Sold
  • 4TITUDE is a low-profile prefabricated ligament brace.
  • Perfect for individuals short or tall, women or men.

Sizing chart
  • Please select an option from above

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The Donjoy 4TITUDE Knee Brace provides excellent protection for individuals with mild to severe ACL, PCL, MCL, and LCL instabilities and are looking for solid support for the activities of daily living, or non-contact sports. The 4Titude is available in seven different 7 sizes to fit almost any size leg.  It is constructed of 6061 aircraft aluminum for lightweight strength and comes in three lengths to accommodate both women or men of different statures. The brace features the patented "Four Points of Leverage" frame design which enhances knee support for patients with an ACL deficient knee, as well as, anyone returning to sports participation following an ACL reconstruction.

Donjoy 4TITUDE Knee Brace Features:

  • Patented 4-point dynamic leverage system***.
  • Standard anti migration Supra Condyle pad.
  • ACL, PCL and CI (combined ACL & PCL straps) versions available.
  • Low-profile, lightweight design (18 oz.).
  • 7 sizes (XS-XXXL) and 2 lengths (Standard 16" and Small 14").
  • Constructed out of 6061 aircraft aluminum for excellent strength.
  • 4Titude features moldable cuffs for a custom fit.
  • Removable thermal-formed liners and strap pads.
  • Numbered straps for easy fitting.

Available Versions:

  • ACL Model- Has additional thigh strap across front of the thigh.
  • PCL Model- Has additional posterior calf strap for added PCL support.
  • CI model (Combined Instability)- Has both the additional thigh and calf strap added for increased multi-ligament support. Example: ACL + MCL injuries.

Available Donjoy 4Titude Lengths:

  • Standard: For patients with a 26.5" inseam or greater
  • Short: For patients with a 26" inseam or less.

Available Colors: Black

Recommended Manufacturer HCPC: L1845

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  • ACL, MCL, PCL and CI (Combined Instability).

Sizing Chart

donjoy 4titude knee brace

1. Measure your Thigh circumference 6" above the center of your knee.

2. Measure the circumference of the center of your knee.

3. Measure your Calf circumference 6" below the center of your knee.

1. Thigh Circumference 2. Knee Center Circumference 3. Calf Circumference
XS 13-15.5" (33-39cm) 12-13" (30-33cm) 10-12" (25-30cm)
S 15.5-18.5" (39-47cm) 13-14" (33-35cm) 12-14" (30-35cm)
M 18.5-21" (47-53cm) 14-15" (35-38cm) 14-16" (35-40cm)
L 21-23.5" (53-60cm) 15-17" (38-43cm) 16-18" (40-45cm)
XL 23.5-26.5" (60-67cm) 17-19" (43-48cm) 18-20" (45-50cm)
2XL 26.5-29.5" (67-75cm) 19-21" (48-53cm) 20-22" (50-55cm)
3XL 29.35-32" (75-83cm) 21-23" (53-58cm) 22-24" (55-60cm)



Standard: For patients with a 26.5" inseam or greater

Short: For patients with a 26" inseam or less.

Four Points of Leverage Design:

The Four Points of Leverage combine to successfully apply a net differential posterior force, or constant force to the tibia, which reduces the instability in the ACL. This Four Points of Leverage design is used in the Donjoy 4Titde knee brace to provide the best all around protection for your knee.

  • Point 1 Anterior: The first point of leverage is the anterior thigh cuff. It acts as a point for rotating the femur anteriorly.
  • Point 2 Posterior: The second point of leverage is the posterior calf cuff. It acts as a point for rotating the tibia posteriorly.
  • Point 3 Posterior: The third point of leverage is a posterior thigh strap, which is applied while drawing the hinge bars posteriorly on the knee.
  • Point 4 Anterior: Incorporating the fourth point generates the crucial opposing force. By tightening and affixing the anterior tibial strap, the hinge is drawn into proper position, and the tibia is rotated posteriorly.

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  • Q&A for Donjoy 4Titude Knee Brace

    Sort by Descending
    • From Joni
      • Q: Does the 4titude have a 10 degree knee extension stop?
      • A: Yes, the 4Titude, along with all of the Donjoy rigid braces, has a 10 degree extension stop built into the frame to prevent your knee from "hyperextending" back into a locked out position. With the straps applied though and the natural, "slight" movement that occurs when wearing a brace, you're really going to get pretty close to straightening to a 0 degree (also known as neutral) position but you won't be able to extend or lock out your knee for knee protection purposes.
    • From Lucy Chou
      • Q: My thigh is 23.5 inches, knee center 16.5 inches, and calf is 18 inches. Do you have any suggestion which size I can choose? L or XL? Should I concern the suitability of knee center or the thigh and calf? Thank you for answering!
      • A: Hi Lucy,

        According to your measurements you'd want to go with the large for the proper fit. Moving up to an XL would prove to be too big around the knee center.

    Ask Your Own Question

    DME-Direct is a Donjoy Authorized Dealer Site

    Donjoy believes that the best way for you to select and purchase a Donjoy product is at one of its authorized online stores of which DME-Direct is one. Only in these stores can you be sure to find the latest Donjoy collection and ensure you are getting a genuine Donjoy product with the manufacturer's full warranty.

    Donjoy therefore recommends that you do not purchase a Donjoy item through any website, unless it is an authorized Donjoy dealer.

    Donjoy Authorized 

    We are a Donjoy Authorized Dealer and can assure you a safe and pleasant shopping experience here at our website as if you were at our wholesale distribution premises in Valencia, California.

    Some non-authorized sites sell counterfeit, second-hand merchandise, and/or products containing old fabrics, glues, and resins that do not perform as intended, and are therefore, not eligible for care under the Donjoy warranty. Others do not offer the original Donjoy warranty, nor do they offer any after-sales service of any kind.

    Donjoy takes great care to ensure that all Donjoy authorized dealers offer you the very best products and service. Please take advantage of the peace of mind that only they can offer to Donjoy purchasers.