Karin Romberg1,2, Monika Fagevik Olsén3,4, Gunilla Kjellby-Wendt3,4, Kerstin Lofdahl Hallerman5,6, Aina Danielsson7,8. 1. Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, 405 30, Gothenburg, Sweden. karin.romberg@vgregion.se. 2. Department of Physical Therapy, Sahlgrenska University Hospital, 413 45, Gothenburg, Sweden. karin.romberg@vgregion.se. 3. Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Box 455, 405 30, Gothenburg, Sweden. 4. Department of Physical Therapy, Sahlgrenska University Hospital, 413 45, Gothenburg, Sweden. 5. Department of Respiratory Medicine, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. 6. Department of Respiratory Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden. 7. Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. 8. Department of Orthopaedics, Sahlgrenska University Hospital, Gothenburg, Sweden.
Abstract
STUDY DESIGN: A group of adult patients with idiopathic scoliosis, diagnosed before the age of ten, at a mean of 26.5 years after treatment with either brace or surgery during childhood and adolescence attended a clinical follow-up. OBJECTIVES: To evaluate the relation between thoracic mobility, rib-cage deformity, and pulmonary function. Long-term studies of pulmonary function in relation to thoracic mobility after treatment in this patient group have not been published. METHODS: A total of 106 patients, 57 braced and 49 operated patients, attended the follow-up. We examined thoracic mobility (range of motion of the thoracic spine, thorax expansion, and breathing movements) and rib-cage deformity (curve size and trunk deformity) as well as pulmonary function, especially total lung capacity (TLC). Respiratory muscle strength was evaluated in a subgroup. RESULTS: Thoracic range of motion was significantly less among the surgically treated patients compared with both the brace-treated and comparison group. Thorax expansion and breathing movements during maximal breathing were significantly reduced in the scoliotic patients compared with the reference values, with no significant differences between the treatment groups. The brace-treated group had better pulmonary function than the operated group, as measured by the TLC, forced vital capacity (FVC), and forced expiratory volume in one second (FEV1) (percentage of predicted values). The respiratory muscle strength was significantly lower only in the surgically treated patients when compared with reference values. The results of a multivariate analysis revealed that the strongest factors explaining TLC percentage of predicted were gender, brace model, and smoking habits. CONCLUSIONS: Thoracic mobility was significantly reduced at mean 26.5 years after completed treatment in both brace-treated and surgically treated patients with early onset scoliosis, compared with the reference values, which did not influence TLC as strongly as gender, brace model, and smoking habits. LEVELS OF EVIDENCE: Level III.
STUDY DESIGN: A group of adult patients with idiopathic scoliosis, diagnosed before the age of ten, at a mean of 26.5 years after treatment with either brace or surgery during childhood and adolescence attended a clinical follow-up. OBJECTIVES: To evaluate the relation between thoracic mobility, rib-cage deformity, and pulmonary function. Long-term studies of pulmonary function in relation to thoracic mobility after treatment in this patient group have not been published. METHODS: A total of 106 patients, 57 braced and 49 operated patients, attended the follow-up. We examined thoracic mobility (range of motion of the thoracic spine, thorax expansion, and breathing movements) and rib-cage deformity (curve size and trunk deformity) as well as pulmonary function, especially total lung capacity (TLC). Respiratory muscle strength was evaluated in a subgroup. RESULTS: Thoracic range of motion was significantly less among the surgically treated patients compared with both the brace-treated and comparison group. Thorax expansion and breathing movements during maximal breathing were significantly reduced in the scoliotic patients compared with the reference values, with no significant differences between the treatment groups. The brace-treated group had better pulmonary function than the operated group, as measured by the TLC, forced vital capacity (FVC), and forced expiratory volume in one second (FEV1) (percentage of predicted values). The respiratory muscle strength was significantly lower only in the surgically treated patients when compared with reference values. The results of a multivariate analysis revealed that the strongest factors explaining TLC percentage of predicted were gender, brace model, and smoking habits. CONCLUSIONS: Thoracic mobility was significantly reduced at mean 26.5 years after completed treatment in both brace-treated and surgically treated patients with early onset scoliosis, compared with the reference values, which did not influence TLC as strongly as gender, brace model, and smoking habits. LEVELS OF EVIDENCE: Level III.