10 Crutches and tips therefor; Force and motion testing apparatus for physical rehabilitation; Medical devices for use in treating or diagnosing lower limb injuries; Medical and surgical apparatus and instruments, namely, devices used in orthopedic surgery to position surgical instruments, implants and/or patients' limbs; Medical and surgical apparatus and instruments, namely, orthopedic fixation device used in orthopedic transplant and/or implant surgery; Medical devices for use in treating or diagnosing lower limb injuries with integrated recorded software for accurate weight-bearing monitoring through the entire rehabilitation process, sold as a unit; Medical devices for use in treating or diagnosing lower limb injuries with integrated recorded operating system software, sold as a unit; Orthopedic devices for diagnostic and therapeutic use