Knee orthoses

1. What are the functions of a flexible knee orthosis?
2. What is the Swedish knee cage?
3. What is the Lenox-Hill derotation orthosis?

Answers:
1. Comfort for patients with OA, knee sprains, mild edema, proprioceptive feedback, kinesthetic reminder, minimal mechanical support, retains body heat, and stabilizes patellar tracking.
2. Controls minor to mod knee hyperextension, may be articulated or nonarticulated.
3. Controls knee axial rotation in addition to AP and mediolat, and is used for prevention and management of sports injuries (ACL).