How to Clean an ACL Brace: Step-by-Step Instructions

An ACL brace is a medical support device worn to stabilize the knee joint following ligament injury or surgery. Regular cleaning is necessary because constant contact with skin and sweat leads to the buildup of oils, bacteria, and salt. Failure to maintain the device can cause unpleasant odors, skin irritation, and premature degradation of the brace materials. A consistent cleaning routine supports the brace’s intended function and protects the underlying skin.

Detailed Cleaning of Soft Components (Padding and Straps)

The soft components, including the pads, liners, and straps, absorb the majority of sweat and oils and require the most frequent attention. Begin by detaching all removable soft parts from the rigid frame so every surface can be properly accessed for cleaning. Handwashing is the recommended method for these textile elements to preserve their shape and integrity, as machine washing can cause damage.

Submerge the straps and pads in a basin of cool or lukewarm water mixed with a small amount of mild soap, baby shampoo, or a non-irritating detergent. Gently agitate and knead the materials to loosen any embedded dirt and salt crystals. Avoid using bleach, fabric softeners, or harsh chemicals, which can compromise the elasticity and durability of the fabric or cause a skin reaction.

Thorough rinsing is important to prevent skin irritation once the brace is worn again. Continue rinsing the components under clean water until no soap residue or suds remain. Leftover detergent can dry and stiffen the material, making the brace less comfortable.

Cleaning and Care for the Rigid Frame and Hinges

The non-textile parts of the brace, such as the plastic or carbon fiber frame and the metal hinges, require a different cleaning approach. These rigid parts should never be submerged in water, as excessive moisture can damage the hinge mechanisms or lead to corrosion. Instead, use a soft cloth or sponge dampened with a mild soap and water solution to wipe down the entire frame.

Focus on the areas of the frame that make direct contact with the skin and carefully clean around the hinge joints and adjustment dials. After cleaning with soap, wipe the frame again with a cloth dampened only with plain water to remove any soapy residue. This process also provides an opportunity to inspect the structural integrity of the device.

While cleaning, check all screws, bolts, and attachment points to ensure they are secure and tight, as daily movement can sometimes loosen them. If the hinges begin to squeak, a small amount of a dry, PTFE-based lubricant can be applied to the mechanism. Avoid petroleum-based products because they can attract debris. For a quick wipe-down between deeper cleans, a damp cloth or an alcohol wipe can be used to manage surface bacteria and sweat.

Proper Drying, Reassembly, and Maintenance Tips

Correct drying prevents the growth of mold and mildew in the padding and protects the brace’s materials from damage. After rinsing, gently press excess water out of the soft components without twisting or wringing them, which can damage the fabric’s structure. All parts must be air-dried completely before reassembly and use, which is especially important for thicker foam pads.

Lay all components flat or hang them in a well-ventilated area. Keep them away from direct sunlight or any source of mechanical heat like a radiator or clothes dryer. High temperatures can cause plastic components to warp, elastic fibers to break down, and pads to shrink or lose their shape.

Once every piece is thoroughly dry, reassemble the brace by reattaching the straps and liners to the frame. For persistent odors, a mild solution of diluted white vinegar or baking soda can be used as a deodorizer, followed by a complete rinse. Additionally, inspect the hook-and-loop fasteners regularly, as lint and debris can clog the “hook” side and reduce their gripping effectiveness. Using a small brush or comb to clear this debris will restore the strap’s function.