The UTX® Swing is a lightweight KAFO that stabilizes the knee during the stance phase of gait but enables knee flexion during swing phase. THERMOPLASTIC UTX® OPTION: Thermoplastic UTX® option affords enhanced control of the foot ankle complex. Key feature of the Thermoplastic UTX® is its intimate total contact fit and resultant potential to afford increased control of the limb. CLINICAL INDICATIONS: Quadriceps weakness as a result of Poliomyelitis, Multiple Sclerosis, CVA, Femoral Nerve and Incomplete Spinal Cord Injuries. Genu Recurvatum. Use posterior tibial shell for maximum control. Successful users will typically have hip extensor strength (Power 3) and passive ankle dorsiflexion.