Why Does My DonJoy Knee Brace Slide Down? Fixes Explained
Why does my DonJoy knee brace keep sliding down?
The Quick Answer
Brace slippage typically results from **improper strap tension sequence** (distal straps tightened before proximal), **swelling fluctuations** altering limb circumference, or **worn straps** losing grip. Correct by: 1) Tightening top strap first, 2) Ensuring no wrinkles under straps, 3) Replacing frayed straps, and 4) Using anti-migration silicone pads on the skin-facing side of straps for high-mobility activities.
Why We Ask This
Patients tighten straps haphazardly or over-tighten distal straps trying to prevent slippage—creating pressure points that compromise circulation while failing to address the biomechanical cause: proximal straps must anchor the brace against thigh musculature to resist gravitational migration during gait.
The Practical Science
Slippage occurs when the brace's center of mass shifts distally during knee flexion. Proper strap sequencing creates a 'suspension bridge' effect: proximal straps anchor against quadriceps bulk while distal straps provide secondary stabilization—distributing shear forces across multiple tissue planes rather than relying on single-point fixation.
In Clinical Practice
A patient repositions their brace by loosening all straps, sliding it 1cm proximal to the joint line, tightening the top strap firmly against the quadriceps bulk first, then sequentially tightening middle and bottom straps—eliminating slippage during stair negotiation by anchoring against the largest proximal muscle mass.
References & Context
How to Keep a Knee Brace From Sliding Down"Improper Size or Fit One of the main reasons for a knee brace sliding down is an incorrect size or fit. If your knee brace is too large or too small, it will not provide the necessary compression and support to keep it in place.Jun 27, 2023"