Neurospine.  2022 Dec;19(4):876-882. 10.14245/ns.2244924.462.

Defining Cervical Sagittal Plane Deformity – When Are Sagittal Realignment Procedures Necessary in Patients Presenting Primarily With Radiculopathy or Myelopathy?

Affiliations
  • 1Center for Neurosciences and Spine and Department of Neurosurgery, Virginia Mason Franciscan Health, Seattle, WA, USA
  • 2Departments of Orthopaedic Surgery and Neurosurgery, The Emory Spine Center, Emory University School of Medicine, Atlanta, GA, USA

Abstract


Objective
It remains unclear whether cervical sagittal deformity (CSD) should be defined by radiographic parameters alone versus both clinical and radiographic factors, and whether radiographic malalignment by itself warrants a CSD corrective surgery in patients who present primarily with neurologic symptoms.
Methods
We administered a survey to a group of expert surgeons to evaluate whether radiographic parameters alone were sufficient to diagnose CSD, and in which scenarios surgeons recommend a CSD realignment procedure versus addressing the neurologic symptoms alone.
Results
No single radiographic criteria reached a 50% threshold as being sufficient to establish the diagnosis of CSD. When asymptomatic radiographic malalignment was present, a sagittal deformity correction was more likely to be recommended in patients with myelopathy versus those with radiculopathy alone. The majority of surgeons recommended deformity correction when symptoms of cervical deformity were present in addition to radiographic malalignment (85% with deformity symptoms and radiculopathy, 93% with deformity symptoms and myelopathy).
Conclusion
There is no consensus on which radiographic and/or clinical criteria are necessary to define the presence of CSD. We recommend that symptoms of cervical deformity, in addition to radiographic parameters, be considered when deciding whether to perform deformity correction in patients who present primarily with myelopathy or radiculopathy.

Keyword

Kyphosis; Spinal cord compression; Cervical spine deformity; Radiculopathy; Myelopathy; Deformity correction
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