Which assistive device is strongly recommended for knee OA management?

• A. Cane
• B. Knee brace
• C. Walker
• D. Crutch

Answer: (A)

Using an assistive device to unload the knee during walking is a fundamental strategy in knee OA management. A cane held on the opposite side of the affected knee redirects some body weight through the cane to the floor, reducing the vertical load and the knee joint’s loading moment during stance. This unloading often lowers pain, increases walking distance, and improves function with minimal hassle, making it a broad, first-line option for many patients.

A knee brace can help unload a specific compartment, but its effectiveness is highly pattern-specific and it can cause discomfort or restrict movement, so it isn’t as universally applicable. A walker provides greater stability but raises energy expenditure and is less practical for everyday use, so it’s typically reserved for those with significant balance issues or after surgery. Crutches are less convenient for long-term management due to stability and handling considerations.

Therefore, the cane is the most generally recommended device to reduce knee loading during ambulation in knee OA.