A prospective study of 127 patients who underwent posterior spinal arthrodesis and segmental spinal instrumentation with iliac crest bone graft for correction of adolescent idiopathic scoliosis. Patients were divided according to their Cobb angle into two groups. Group 1 (n= 78) with a Cobb angle > 70° who underwent an additional concave rib osteotomy (CRO) and group 2 (n= 49) with a Cobb angle < 70° who did not (NCRO). All patients received a pulmonary rehabilitation programme post-operatively. Vital capacity (VC) and peak expiratory flow rate (PEF) were measured pre-operatively, at 3 months and 12 months post-operatively. Concave rib osteotomy technique is used for giving more mobility and flexibility of the spine during correction especially in rigid and severe curves. Only a few studies in the literature have looked at the effect of concave rib osteotomy on pulmonary function.Subjects
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