Smyth R J, Chapman K R, Wright T A, Crawford J S, Rebuck A S
Thorax. 1984 Dec;39(12):901-4. doi: 10.1136/thx.39.12.901.
Spirometric indices, lung volumes, maximum voluntary ventilation, and maximum inspiratory and expiratory pressures were measured in 44 adolescents with mild idiopathic scoliosis (spinal curvature less than 30 degrees). All were symptom free, but six (13.6%) showed a restrictive defect with forced vital capacity less than 80% of predicted. In 12 subjects (27.3%) maximum voluntary ventilation was reduced to less than 80% of predicted normal. Forced vital capacity was significantly correlated with maximum inspiratory pressure and with maximum expiratory pressure, measures of respiratory muscle strength, but was not related to the degree of thoracic curvature. When maximum inspiratory pressure and forced vital capacity were corrected for differences in body size these variables remained positively correlated, most significantly in the girls. These data indicate that ventilatory function may be impaired in mild, idiopathic scoliosis and that the force developed by the respiratory muscles is a more important determinant of this impairment than the radiologically determined degree of spinal curvature.
对44例轻度特发性脊柱侧凸（脊柱弯曲小于30度）的青少年进行了肺活量测定指标、肺容量、最大自主通气量以及最大吸气和呼气压力的测量。所有患者均无症状，但6例（13.6%）表现为限制性缺陷，其用力肺活量低于预测值的80%。12例受试者（27.3%）的最大自主通气量降至低于预测正常值的80%。用力肺活量与最大吸气压力以及最大呼气压力（呼吸肌力量的测量指标）显著相关，但与胸椎弯曲程度无关。当对最大吸气压力和用力肺活量进行身体大小差异校正后，这些变量仍呈正相关，在女孩中最为显著。这些数据表明，轻度特发性脊柱侧凸患者的通气功能可能受损，并且呼吸肌产生的力量比放射学确定的脊柱弯曲程度更能决定这种损害。
