척추 변형에 있어서 폐기능치의 변화

Abstract

The deformed and rigid spine presenting moderate to severe kyphosis and scoliosis results in a restriction of function of the lung best characterized spirographically by a reduction in vital capacity. When the lesion involves thoracic spine. restriction is more marked. Spine deformity such as kyphosis and scoliosis develops from various causes. Tuberculous spondylitis is a main cause of kyphosis and scoliosis is increasingly found in Korea. Cardiorespiratory dysfunction caused by spine defor~ mity poses another problem besides spine deformity per se To perform therapeutic measure such a Harrington instrumentation, with or without preoperative localizer cast and halofemoral traction as well as anterior interbody fusion , evaluation of pulmonary function and arterial gas analysis preoperatively is helpful to prevent and reduce the postoperative cardiorespiratory failure or complications The autho has reviewed results of arterial gas analyses and pulmonary function tests on 35 cases of scoliosis and 60 cases of kyphosis done at the Department of Orthopedic Sur gery, Seoul National University Hospital from January 1975 to February 1978. The results were as follows: • 185 ]. Average degree of scoliosis of 35 cases was 89°, vital capacity 60% of normal, and maximum breathing capacity 72%. Average degree of kyphosis of 38 cases of dorsal spine was 93. 5 。 vital capacity 38%, and maximum breathing capacity 73%. Average degree of kyphosis of 22 cases of lumbar spine was 79°, vital capacity 77%, and maximum breathing capacity 84%. 2. Static value for pulmonary function such as vital capacity and dynamic value such as maximum breathing capacity had a significant negative correIation with the severity of scoliosis and kyphosis. 3. Scoliosis and kyphosis decreased vital capacity correlating positively with maximum breathing capacity 4. Arterial oxygen saturation had a significant negative correlation with the severity of scoliosis and kyphosis