A case of adult α-type spinal deformity with spinal cord rotation greater than 90°

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  • 1 Departments of Neurological Surgery and
  • 3 Orthopedic Surgery, Mount Sinai Health System, New York, New York; and
  • 2 Center for Spine Health, Cleveland Clinic Foundation, Cleveland, Ohio
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This report describes a 42-year-old man who presented with an α-type spinal deformity with a Cobb angle of 224.9° and associated spinal cord rotation greater than 90°. Preoperative imaging revealed extensive spinal deformity, and 3D modeling confirmed the α-type nature of his deformity. Intraoperative photography demonstrated spinal cord rotation greater than 90°, which likely contributed to the patient’s poor neurological status. Reports of patients with Cobb angles ≥ 100° are rare, and to the authors’ knowledge, there have been no published cases of adult α-type spinal deformity. Furthermore, very few cases or case series of spinal cord rotation have been published previously, with no single patient having rotation greater than 90° to the authors’ knowledge. Given these two rarities presenting in the same patient, this report can provide important insights into the operative management of this difficult form of spinal deformity.

ABBREVIATIONS MAP = mean arterial pressure; MEP = motor-evoked potential.

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Contributor Notes

Correspondence Sean N. Neifert: Mount Sinai Health System, New York, New York. sean.neifert@icahn.mssm.edu.

INCLUDE WHEN CITING Published online June 5, 2020; DOI: 10.3171/2020.3.SPINE20170.

Disclosures Dr. Caridi reports receiving consulting fees from Zimmer Biomet. Dr. Cho reports receiving consulting fees from CGBio, Globus, and Zimmer Biomet.

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