Patellar fracture treated by Nitinol patellar concentrator and postoperative rehabilitation training

INTRODUCTIONForm-remembering alloy were used broadly in clinic for its effect, special mechanics and excellent tolerance and has a clinical value,MATERIALS AND METHODS Structure and fixingMaterial of patellar concentrator came from nitinol, with thickness, 1. 8 - 5. 8 mm. The main structure consisted of 1 - 2 function claws at fundation of patella, 2 - 3 at tip of patella and a connective claw.