Reducing the Brace Correction Stress on the Secondary Lumbar Curve Results in Excellent Muscle, Bone, and Disc Mechanical Performance: A Musculoskeletal Finite Element Simulation of AIS Patient With Rigo A3
ABSTRACT Objectives The biomechanical mechanism of brace intervention on bone, muscle, and disc should be comprehensively considered for AIS patients. We aimed to developmentally construct a musculoskeletal finite element model of adolescent idiopathic scoliosis to simulate the coupling of correctiv...
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| Format: | Article |
| Language: | English |
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Wiley
2025-02-01
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| Series: | Orthopaedic Surgery |
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| Online Access: | https://doi.org/10.1111/os.14296 |
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| author | Xiaohui Zhang Di Wang Danyu Lv Jinmiao Lv Huiyi Tang Jinlin Qian Bagen Liao |
| author_facet | Xiaohui Zhang Di Wang Danyu Lv Jinmiao Lv Huiyi Tang Jinlin Qian Bagen Liao |
| author_sort | Xiaohui Zhang |
| collection | DOAJ |
| description | ABSTRACT Objectives The biomechanical mechanism of brace intervention on bone, muscle, and disc should be comprehensively considered for AIS patients. We aimed to developmentally construct a musculoskeletal finite element model of adolescent idiopathic scoliosis to simulate the coupling of corrective forces and analyze the mechanical properties of bone, muscle, and disc. Investigateing, more effective clinical interventions to break the vicious cycle of patients during growth. Methods A finite element model, including muscle, bone, and disc, was established using computed tomography data of a patient with RigoA3 adolescent idiopathic scoliosis. The three‐point force coupling, antigravity, and bending effects of the Chêneau brace were simulated, and the correction force of the secondary lumbar bend was gradually reduced while observing the mechanical characteristics of bone, muscle, and disc. The correction force in line with symmetrical spine growth was comprehensively evaluated. Results The correction rate of the main thoracic (MT) curve, the intervertebral space height on the concave side of the vertebrae at the apex, and the stress ratio of the intervertebral discs were optimal when the maximum corrective pressure threshold was reached. However, the proximal thoracic (PT) curve was aggravated and the axial forces on the concave side were unbalanced. At this time, the biomechanical performance of the model is also not optimal. The correction rate of the Cobb Angle of the MT curve decreased with the decrease of the correction pressure in the lumbar region. When reduced to 25% of the maximum threshold, the convex side of disc stress, intervertebral space, and muscle axial force is more in line with the biomechanical mechanism of correction and can avoid sacrificing the PT curve. Conclusions Downward adjustment of the corrective force to the secondary lumbar curve, using the Chêneau brace, results in better primary thoracic curvature mechanics in the musculoskeletal finite element model, suggesting that breaking the vicious cycle of scoliosis progression to guide benign spinal growth is beneficial. |
| format | Article |
| id | doaj-art-ac3edd861ff749a08d24b63a09ab1f43 |
| institution | Kabale University |
| issn | 1757-7853 1757-7861 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Orthopaedic Surgery |
| spelling | doaj-art-ac3edd861ff749a08d24b63a09ab1f432025-02-03T03:10:59ZengWileyOrthopaedic Surgery1757-78531757-78612025-02-0117252553910.1111/os.14296Reducing the Brace Correction Stress on the Secondary Lumbar Curve Results in Excellent Muscle, Bone, and Disc Mechanical Performance: A Musculoskeletal Finite Element Simulation of AIS Patient With Rigo A3Xiaohui Zhang0Di Wang1Danyu Lv2Jinmiao Lv3Huiyi Tang4Jinlin Qian5Bagen Liao6Department of Sports Medicine Guangzhou Sport University Guangzhou ChinaDepartment of Sports Medicine Guangzhou Sport University Guangzhou ChinaDepartment of Sports Medicine Guangzhou Sport University Guangzhou ChinaDepartment of Sports Medicine Guangzhou Sport University Guangzhou ChinaDepartment of Sports Medicine Guangzhou Sport University Guangzhou ChinaDepartment of Sports Medicine Guangzhou Sport University Guangzhou ChinaDepartment of Sports Medicine Guangzhou Sport University Guangzhou ChinaABSTRACT Objectives The biomechanical mechanism of brace intervention on bone, muscle, and disc should be comprehensively considered for AIS patients. We aimed to developmentally construct a musculoskeletal finite element model of adolescent idiopathic scoliosis to simulate the coupling of corrective forces and analyze the mechanical properties of bone, muscle, and disc. Investigateing, more effective clinical interventions to break the vicious cycle of patients during growth. Methods A finite element model, including muscle, bone, and disc, was established using computed tomography data of a patient with RigoA3 adolescent idiopathic scoliosis. The three‐point force coupling, antigravity, and bending effects of the Chêneau brace were simulated, and the correction force of the secondary lumbar bend was gradually reduced while observing the mechanical characteristics of bone, muscle, and disc. The correction force in line with symmetrical spine growth was comprehensively evaluated. Results The correction rate of the main thoracic (MT) curve, the intervertebral space height on the concave side of the vertebrae at the apex, and the stress ratio of the intervertebral discs were optimal when the maximum corrective pressure threshold was reached. However, the proximal thoracic (PT) curve was aggravated and the axial forces on the concave side were unbalanced. At this time, the biomechanical performance of the model is also not optimal. The correction rate of the Cobb Angle of the MT curve decreased with the decrease of the correction pressure in the lumbar region. When reduced to 25% of the maximum threshold, the convex side of disc stress, intervertebral space, and muscle axial force is more in line with the biomechanical mechanism of correction and can avoid sacrificing the PT curve. Conclusions Downward adjustment of the corrective force to the secondary lumbar curve, using the Chêneau brace, results in better primary thoracic curvature mechanics in the musculoskeletal finite element model, suggesting that breaking the vicious cycle of scoliosis progression to guide benign spinal growth is beneficial.https://doi.org/10.1111/os.14296downward correction pressurefinite element simulationimproved performancelumbar spine curvetensegrity |
| spellingShingle | Xiaohui Zhang Di Wang Danyu Lv Jinmiao Lv Huiyi Tang Jinlin Qian Bagen Liao Reducing the Brace Correction Stress on the Secondary Lumbar Curve Results in Excellent Muscle, Bone, and Disc Mechanical Performance: A Musculoskeletal Finite Element Simulation of AIS Patient With Rigo A3 Orthopaedic Surgery downward correction pressure finite element simulation improved performance lumbar spine curve tensegrity |
| title | Reducing the Brace Correction Stress on the Secondary Lumbar Curve Results in Excellent Muscle, Bone, and Disc Mechanical Performance: A Musculoskeletal Finite Element Simulation of AIS Patient With Rigo A3 |
| title_full | Reducing the Brace Correction Stress on the Secondary Lumbar Curve Results in Excellent Muscle, Bone, and Disc Mechanical Performance: A Musculoskeletal Finite Element Simulation of AIS Patient With Rigo A3 |
| title_fullStr | Reducing the Brace Correction Stress on the Secondary Lumbar Curve Results in Excellent Muscle, Bone, and Disc Mechanical Performance: A Musculoskeletal Finite Element Simulation of AIS Patient With Rigo A3 |
| title_full_unstemmed | Reducing the Brace Correction Stress on the Secondary Lumbar Curve Results in Excellent Muscle, Bone, and Disc Mechanical Performance: A Musculoskeletal Finite Element Simulation of AIS Patient With Rigo A3 |
| title_short | Reducing the Brace Correction Stress on the Secondary Lumbar Curve Results in Excellent Muscle, Bone, and Disc Mechanical Performance: A Musculoskeletal Finite Element Simulation of AIS Patient With Rigo A3 |
| title_sort | reducing the brace correction stress on the secondary lumbar curve results in excellent muscle bone and disc mechanical performance a musculoskeletal finite element simulation of ais patient with rigo a3 |
| topic | downward correction pressure finite element simulation improved performance lumbar spine curve tensegrity |
| url | https://doi.org/10.1111/os.14296 |
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