The effect of C2 screw type on perioperative outcomes and long-term stability after C2-T2 posterior cervical decompression and fusion.

Autor: Levy HA; Department of Orthopedic Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN, 55905, USA. levy.hannah@mayo.edu., Pinter ZW; Department of Orthopedic Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN, 55905, USA., Pumford A; Department of Orthopedic Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN, 55905, USA., Padilla S; Department of Orthopedic Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN, 55905, USA., Salmons HI; Department of Orthopedic Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN, 55905, USA., Townsley S; Department of Orthopedic Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN, 55905, USA., Katsos K; Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA., Clarke M; Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA., Bydon M; Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA., Fogelson JL; Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA., Elder BD; Department of Neurologic Surgery, Mayo Clinic, Rochester, MN, USA., Currier B; Department of Orthopedic Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN, 55905, USA., Freedman BA; Department of Orthopedic Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN, 55905, USA., Nassr AN; Department of Orthopedic Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN, 55905, USA., Karamian BA; Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah, USA., Sebastian AS; Department of Orthopedic Surgery, Mayo Clinic, 200 1 St. SW, Rochester, MN, 55905, USA.
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] 2024 Jun; Vol. 33 (6), pp. 2314-2321. Date of Electronic Publication: 2024 Apr 02.
DOI: 10.1007/s00586-024-08237-2
Abstrakt: Purpose: To determine if C2 pedicle versus pars screw type predicts change in fusion status, C2 screw loosening, cervical alignment, and patient-reported outcomes measures (PROMs) after C2-T2 posterior cervical decompression and fusion (PDCF).
Methods: All adult patients who underwent C2-T2 PCDF for myelopathy or myeloradiculopathy between 2013-2020 were retrospectively identified. Patients were dichotomized by C2 screw type into bilateral C2 pedicle and bilateral C2 pars screw groups. Preoperative and short- and long-term postoperative radiographic outcomes and PROMs were collected. Univariate and multivariate analysis compared patient factors, fusion status, radiographic measures, and PROMs across groups.
Results: A total of 159 patients met the inclusion/exclusion criteria (76 bilateral pedicle screws, 83 bilateral pars screws). Patients in the C2 pars relative to C2 pedicle screw group were on average more likely to have bone morphogenic protein (p = 0.001) and four-millimeter diameter rods utilized intraoperatively (p = 0.033). There were no significant differences in total construct and C2-3 fusion rate, C2 screw loosening, or complication and revision rates between C2 screw groups in univariate and regression analysis. Changes in C2 tilt, C2-3 segmental lordosis, C0-2 Cobb angle, proximal junctional kyphosis, atlanto-dens interval, C1 lamina-occiput distance, C2 sagittal vertical axis, C2-7 lordosis, and PROMs at all follow-up intervals did not vary significantly by C2 screw type.
Conclusion: There were no significant differences in fusion status, hardware complications, and radiographic and clinical outcomes based on C2 screw type following C2-T2 PCDF. Accordingly, intraoperative usage criteria can be flexible based on patient vertebral artery positioning and surgeon comfort level.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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