Spontaneous induced bone fusion in minimally invasive fusionless bipolar fixation in neuromuscular scoliosis: a computed tomography analysis

Purpose Posterior spinal fusion (PSF) at skeletal maturity is still the gold standard in children with neuromuscular scoliosis (NMS) who underwent fusionless surgery. The aim of this computed tomography (CT) study was to quantify the spontaneous bone fusion at the end of a lengthening program by min...

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Bibliographic Details
Published in:European spine journal 2023-07, Vol.32 (7), p.2550-2557
Main Authors: Gaume, M., Langlais, T., Loiselet, K., Pannier, S., Skalli, W., Vergari, C., Miladi, L.
Format: Article
Language:English
Subjects:
Bioengineering
Biomechanics
Child
Computed tomography
Engineering Sciences
Human health and pathology
Humans
Imaging
Life Sciences
Mechanics
Medicine
Medicine & Public Health
Neuromuscular Diseases
Neurosurgery
Original Article
Ossification
Pediatrics
Pelvis
Retrospective Studies
Rhumatology and musculoskeletal system
Rods
Scoliosis
Scoliosis - diagnostic imaging
Scoliosis - surgery
Spinal Fusion - methods
Surgery
Surgical Orthopedics
Thoracic Vertebrae - diagnostic imaging
Thoracic Vertebrae - surgery
Thorax
Tomography
Tomography, X-Ray Computed
Treatment Outcome
Vertebrae
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Summary:Purpose Posterior spinal fusion (PSF) at skeletal maturity is still the gold standard in children with neuromuscular scoliosis (NMS) who underwent fusionless surgery. The aim of this computed tomography (CT) study was to quantify the spontaneous bone fusion at the end of a lengthening program by minimally invasive fusionless bipolar fixation (MIFBF), that could avoid PSF. Methods NMS operated on with MIFBF from T1 to the pelvis and at final lengthening program were included. CT was performed at least five years postoperatively. The autofusion was classified as completely or not fused at the facets joint (on both coronal and sagittal plane, right and left side, from T1 to L5), and around the rods (axial plane, right and left side, from T5 to L5). Vertebral body heights were assessed. Results Ten patients were included (10.7y ± 2 at initial surgery). Mean Cobb angle was 82 ± 20 preoperatively and 37 ± 13 at last follow-up. CT were performed on average 6.7y ± 1.7 after initial surgery. Mean preoperative and last follow-up thoracic vertebrae height were respectively 13.5 mm ± 1.7 and 17.4 mm ± 1.7 ( p  
ISSN:0940-6719
1432-0932
DOI:10.1007/s00586-023-07745-x