How Long Do DonJoy Knee Braces Last? Lifespan Guide
How long do DonJoy knee braces last?
The Quick Answer
DonJoy braces last **12 months with daily wear** or **up to 24 months with intermittent athletic use**. Lifespan depends on usage intensity: daily post-surgical wear accelerates strap fraying and hinge wear, while occasional sports use preserves integrity longer. Replace immediately if straps lose tension, hinges develop play, or frame shows cracks—compromised components risk inadequate support during critical activities.
Why We Ask This
Patients extend brace use beyond functional lifespan to avoid replacement costs, unknowingly wearing devices with degraded support that fail during activity—potentially causing re-injury when compromised straps or hinges cannot withstand expected loads.
The Practical Science
Material fatigue follows predictable patterns: hook-and-loop straps lose 40% grip strength after 300 wear cycles; polycentric hinges develop 2–3mm play after 18 months of daily use. Regular inspection protocols catch degradation before catastrophic failure occurs during weight-bearing activities.
In Clinical Practice
A recreational runner notices their DonJoy brace straps require double-folding to achieve snug fit after 14 months—signaling replacement need before the next trail run where unexpected strap failure could cause knee buckling on uneven terrain.
References & Context
When is it Time to Switch Up Your Gear? - DonJoy Store"Knee Brace If you wear it every day, watch for signs of wear and tear, and replace as needed—likely once a year, at least. If worn only for sporadic sporting events, you can likely keep it for up to two years."