Each year, over 600,000 patients in the US have total knee replacements, and many others have meniscus repair, ACL reconstruction or other range-of-motion surgeries. GAP-FLEX®, led by a team of experienced medical device entrepreneurs and orthopedic surgeons, designs comfortable and convenient therapy products to improve recovery from total knee replacement. Using the simple concept of gravity, the GAP-FLEX® system allows patients to regain mobility and range of motion quickly, easily and with a high rate of compliance compared to traditional methods of knee recovery therapy.