Patella fracture is a fracture of the kneecap (patella). Patella is the largest sesamoid, is also an integral part of the knee. Quadriceps aponeurosis has covered the front to form a patellar tendon under the extension, limited to the tibial tubercle. Patellar aponeurosis adjacent to both sides for the back surface for the articular cartilage, femoral patellar surface with the formation of the patellofemoral joint, patellar ligament and its surrounding, forming the common extensor aponeurosis devices activity in the lower extremities are very important structures. After resection of the patella in the quadriceps extensor activity can reduce the power, therefore, can protect the knee patella, and enhance muscle strength muscle 4, tackle the role of the knee straight. In the treatment should be as far as possible behind the patella articular surface are complete, the inside and outside the lateral femoral condyle with the formation of articular surface of the restoration of the previous formation, to reduce the occurrence of patellofemoral arthritis.