ORIGINAL PAPER
Impact of vertebral derotation on ventilatory function and chest circumference in adolescent scoliosis
1
Physical Therapy Department, Faculty of Health Sciences, Beirut Arab University, Beirut, Lebanon
2
Department of Physical Therapy for Cardiopulmonary Disorders and Geriatrics, Faculty of Physical Therapy, Misr University for Science and Technology, Giza, Egypt
3
Faculty of Physical Therapy, City University of Cairo, Cairo, Egypt
4
Department of Physical Therapy for Musculoskeletal Disorders and it’s Surgeries, Faculty of Physical Therapy, Misr University for Science and Technology, Giza, Egypt
5
Department of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Jouf University, Jouf, Saudi Arabia
6
Department of Orthopaedic Surgery, Faculty of Medicine, Cairo University, Cairo, Egypt
These authors had equal contribution to this work
Submission date: 2023-10-10
Acceptance date: 2024-01-10
Publication date: 2025-03-20
Corresponding author
Khaled Takey Ahmed
Department of Physical Therapy for Cardiopulmonary Disorders, and Geriatrics, Faculty of Physical Therapy, Misr University for Science and Technology, 26th of July Corridor, first 6th of October, Giza Governorate, Egypt
Department of Physical Therapy for Cardiopulmonary Disorders, and Geriatrics, Faculty of Physical Therapy, Misr University for Science and Technology, 26th of July Corridor, first 6th of October, Giza Governorate, Egypt
Physiother Quart. 2025;33(1):60-66
KEYWORDS
adolescent idiopathic scoliosisvertebral derotationpulmonary function testangle of rotationchest circumference
TOPICS
ABSTRACT
Introduction:
Scoliosis has been associated with thoracic cavity alterations that impair pulmonary function. Correcting scoliotic deformity regains normal pulmonary function by maintaining respiratory and muscular efficiency. This study aims to compare pulmonary function and thoracic volume at baseline and after correcting the scoliosis deformity.
Methods:
A total of 56 patients, 46 girls and 10 boys, were diagnosed with idiopathic scoliosis. Participants were randomly allocated into two equal groups. Group A was treated with posterior correction, vertebral derotation, and a pulmonary rehabilitation program, while group B was treated with the same treatment given to group A without derotation. Evaluation of the measuring variables was carried out pre-operatively, immediately post-operatively, and three months after the operation. In addition, post-operatively, participants were treated with segmental breathing exercise training and incentive spirometry, 3 sessions per week for 3 months.
Results:
A significant reduction in the Cobb angles, angles of rotation, and chest expansion was observed in both groups by comparing both initial and post-operative mean values, while a significant reduction was revealed in group A (p = 0.0001). The mean values of FEV1 and MVV immediately post-operatively showed a significant reduction in both groups, which was highly significant for group A. At three months post-operatively, both groups showed highly significant improvement (p = 0.001).
Conclusions:
In addition to its beneficial effects on curve correction and the angle of rotation, the vertebral derotation technique impairs physiological and mechanical parameters immediately post-operatively. However, a beneficial effect was detected after three months of pulmonary rehabilitation in all parameters.
Scoliosis has been associated with thoracic cavity alterations that impair pulmonary function. Correcting scoliotic deformity regains normal pulmonary function by maintaining respiratory and muscular efficiency. This study aims to compare pulmonary function and thoracic volume at baseline and after correcting the scoliosis deformity.
Methods:
A total of 56 patients, 46 girls and 10 boys, were diagnosed with idiopathic scoliosis. Participants were randomly allocated into two equal groups. Group A was treated with posterior correction, vertebral derotation, and a pulmonary rehabilitation program, while group B was treated with the same treatment given to group A without derotation. Evaluation of the measuring variables was carried out pre-operatively, immediately post-operatively, and three months after the operation. In addition, post-operatively, participants were treated with segmental breathing exercise training and incentive spirometry, 3 sessions per week for 3 months.
Results:
A significant reduction in the Cobb angles, angles of rotation, and chest expansion was observed in both groups by comparing both initial and post-operative mean values, while a significant reduction was revealed in group A (p = 0.0001). The mean values of FEV1 and MVV immediately post-operatively showed a significant reduction in both groups, which was highly significant for group A. At three months post-operatively, both groups showed highly significant improvement (p = 0.001).
Conclusions:
In addition to its beneficial effects on curve correction and the angle of rotation, the vertebral derotation technique impairs physiological and mechanical parameters immediately post-operatively. However, a beneficial effect was detected after three months of pulmonary rehabilitation in all parameters.
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