Vertebral body changes after continuous spinal distraction in scoliotic children.

Autor: Lippross S; Department of Trauma, Orthopaedic and Plastic Surgery, Investigations Performed At Pediatric Orthopaedics, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075, Goettingen, Germany.; Department of Orthopaedic and Trauma Surgery, University Medical Center Schleswig-Holstein, Campus Kiel, Germany., Grages A; Department of Trauma, Orthopaedic and Plastic Surgery, Investigations Performed At Pediatric Orthopaedics, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075, Goettingen, Germany., Lueders KA; Department of Trauma, Orthopaedic and Plastic Surgery, Investigations Performed At Pediatric Orthopaedics, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075, Goettingen, Germany., Braunschweig L; Department of Trauma, Orthopaedic and Plastic Surgery, Investigations Performed At Pediatric Orthopaedics, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075, Goettingen, Germany., Austein F; Department of Radiology and Neuroradiology, University Medical Center Schleswig-Holstein, Campus Kiel, Germany., Tsaknakis K; Department of Trauma, Orthopaedic and Plastic Surgery, Investigations Performed At Pediatric Orthopaedics, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075, Goettingen, Germany., Lorenz HM; Department of Trauma, Orthopaedic and Plastic Surgery, Investigations Performed At Pediatric Orthopaedics, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075, Goettingen, Germany., Hell AK; Department of Trauma, Orthopaedic and Plastic Surgery, Investigations Performed At Pediatric Orthopaedics, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075, Goettingen, Germany. anna.hell@med.uni-goettingen.de.
Jazyk: angličtina
Zdroj: European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society [Eur Spine J] 2021 Jul; Vol. 30 (7), pp. 1928-1934. Date of Electronic Publication: 2021 Feb 22.
DOI: 10.1007/s00586-021-06775-7
Abstrakt: Purpose: Growth-friendly spinal implants (GFSI) were established for scoliotic children as an interim solution until definite spinal fusion could be performed during puberty. While deformity control was clearly proven, the effects on vertebral shape and morphology are still unclear. Our prospective study assesses the effect of GFSI with continuous distraction on vertebral body shape and volume in SMA children in comparison with previously untreated age-matched SMA patients.
Methods: Cohort I (n = 19, age 13.2 years) were SMA patients without prior surgical scoliosis treatment. Cohort II (n = 24, age 12.4 years) were children, who had continuous spinal distraction with GFSI for 4.5 years. Radiographic measurements and computed tomography (CT) 3D volume rendering were performed before definite spinal fusion. For cohort II, additional radiographs were analyzed before the first surgical implantation of GFSI, after surgery and every year thereafter.
Results: Our analysis revealed decreased depth and volume in scoliotic patients with prior GFSI compared to scoliotic patients without prior implants. This difference was significant for the lower thoracic and entire lumbar spine. Vertebral body height and pedicle size were unchanged between the two cohorts.
Conclusion: CT data showed volume reduction in the vertebral body in scoliotic children after GFSI treatment. This effect was more severe in the lumbar and lower thoracic area. While vertebral height was identical in both groups, vertebral depth was reduced in the GFSI-treated group. Reduced vertebral depth and altered vertebral morphology should be considered before instrumenting the spine in previously treated scoliotic SMA children.
Level of Evidence Iii: Diagnostic: individual cross-sectional studies with consistently applied reference standard and blinding.
(© 2021. The Author(s).)
Databáze: MEDLINE
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