Treatment of DDH was reduction and holding the hip reduced using a cast or brace. Four types of methods were recognised before Professor Pavlik started using his harness in 1945: Lorenz method, Hanausek method, Hanausek's and Frejka's blanket. These methods were associated with a high risk of osteonecrosis (28%). Professor Pavlik attributed this to the fact that these methods provided a rigid reduction and did not allow active movement of the hip, which was the cause for the osteonecrosis developing. Hence he developed a new method to keep the hip reduced but still retaining some form of active movement of the hip. He called his new method 'active movement.'
Dr. Pavlik concluded that necrosis of the femoral head did not occur if a dislocated hip had movement and if spontaneous reposition occurred. He stated that any immobilisation of a passively repositioned hip threatened the femoral head significantly. The author believed that this occurs when the femoral head encounters a large obstacle in the socket.
Copyright remains with the authors and publisher.
Treatment of DDH was reduction and holding the hip reduced using a cast or brace. Four types of methods were recognised before Professor Pavlik started using his harness in 1945: Lorenz method, Hanausek method, Hanausek's and Frejka's blanket. These methods were associated with a high risk of osteonecrosis (28%). Professor Pavlik attributed this to the fact that these methods provided a rigid reduction and did not allow active movement of the hip, which was the cause for the osteonecrosis developing. Hence he developed a new method to keep the hip reduced but still retaining some form of active movement of the hip. He called his new method 'active movement.'
Dr. Pavlik concluded that necrosis of the femoral head did not occur if a dislocated hip had movement and if spontaneous reposition occurred. He stated that any immobilisation of a passively repositioned hip threatened the femoral head significantly. The author believed that this occurs when the femoral head encounters a large obstacle in the socket.
Copyright remains with the authors and publisher.