title: Pulmonary function after thoracoplasty in adolescent idiopathic scoliosis.
abstract: The current study evaluated sequential pulmonary function tests prospectively at a minimum of 2 years after thoracoplasty in adolescent patients with idiopathic scoliosis. Twenty patients were divided into two groups: Group I (n=12) was comprised of patients who had posterior instrumented fusion with external thoracoplasty, and Group II (n=8) was comprised of patients who in addition to a posterior instrumented fusion, had an anterior release and fusion via video-assisted thoracoscopic surgery (n=4) or open thoracotomy (n=4) because of rigid severity. Forced vital capacity and forced expiratory volume in 1 second of percent predicted values in Group I declined 9% at 3 months postoperatively and returned to the preoperative baseline at 1 year. However, forced vital capacity and forced expiratory volume in 1 second of percent predicted values in Group II declined 11% to 18% postoperatively and did not return to the preoperative baseline at 2 years. Posterior instrumented fusion with thoracoplasty in adolescent patients with idiopathic scoliosis significantly decreased pulmonary function at 3 months, but returned to the preoperative baseline at 1 year. The addition of an anterior releasing procedure resulted in poorer pulmonary function, which did not return to the preoperative baseline by the 2-year followup.
authors.affiliation: Department of Orthopaedic Surgery, College of Medicine, Chang Gung University Memorial Hospital, No. 5 Fu-Hsing Street, 333 Kweishan, Taoyuan, Taiwan.
authors.forename: Shih-Hao
authors.initials: SH
authors.lastname: Chen
authors.forename: Tsung-Jen
authors.initials: TJ
authors.lastname: Huang
authors.forename: Yan-Yaw
authors.initials: YY
authors.lastname: Lee
authors.forename: Robert Wen-Wei
authors.initials: RW
authors.lastname: Hsu
mesh_terms: D000293:Adolescent; D001860:Bone Plates; D003131:Combined Modality Therapy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D011446:Prospective Studies; D011859:Radiography; D012129:Respiratory Function Tests; D012600:Scoliosis / Q000000981:diagnostic imaging / Q000601:surgery*; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D013123:Spinal Fusion / Q000295:instrumentation / Q000379:methods*; D013905:Thoracoplasty / Q000379:methods*; D014109:Total Lung Capacity; D016896:Treatment Outcome; D014797:Vital Capacity