A single-center retrospective analysis of 3- or 4-level anterior cervical discectomy and fusion: surgical outcomes in 66 patients.

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McClure, Jesse J

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Desai, Bhargav D

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Shabo, Leah M

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Buell, Thomas J

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Yen, Chun-Po

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Smith, Justin S

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Shaffrey, Christopher I

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Shaffrey, Mark E

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Buchholz, Avery L

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2023-06-19T19:45:57Z

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2023-06-19T19:45:57Z

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2020-10

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2023-06-19T19:45:56Z

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Objective

Anterior cervical discectomy and fusion (ACDF) is a safe and effective intervention to treat cervical spine pathology. Although these were originally performed as single-level procedures, multilevel ACDF has been performed for patients with extensive degenerative disc disease. To date, there is a paucity of data regarding outcomes related to ACDFs of 3 or more levels. The purpose of this study was to compare surgical outcomes of 3- and 4-level ACDF procedures.

Methods

The authors performed a retrospective chart review of patients who underwent 3- and 4-level ACDF at the University of Virginia Health System between January 2010 and December 2017. In patients meeting the inclusion/exclusion criteria, demographics, fusion rates, time to fusion, and reoperation rates were evaluated. Fusion was determined by < 1 mm of change in interspinous distance between individual fused vertebrae on lateral flexion/extension radiographs and lack of radiolucency between the grafts and vertebral bodies. Any procedure requiring a surgical revision was considered a failure.

Results

Sixty-six patients (47 with 3-level and 19 with 4-level ACDFs) met the inclusion/exclusion criteria of having at least one lateral flexion/extension radiograph series ≥ 12 months after surgery. Seventy percent of 3-level patients and 68% of 4-level patients had ≥ 24 months of follow-up. Ninety-four percent of 3-level patients and 100% of 4-level patients achieved radiographic fusion for at least 1 surgical level. Eighty-eight percent and 82% of 3- and 4-level patients achieved fusion at C3-4; 85% and 89% of 3- and 4-level patients achieved fusion at C4-5; 68% and 89% of 3- and 4-level patients achieved fusion at C5-6; 44% and 42% of 3- and 4-level patients achieved fusion at C6-7; and no patients achieved fusion at C7-T1. Time to fusion was not significantly different between levels. Revision was required in 6.4% of patients with 3-level and in 16% of patients with 4-level ACDF. The mean time to revision was 46.2 and 45.4 months for 3- and 4-level ACDF, respectively. The most common reason for revision was worsening of initial symptoms.

Conclusions

The authors' experience with long-segment anterior cervical fusions shows their fusion rates exceeding most of the reported fusion rates for similar procedures in the literature, with rates similar to those reported for short-segment ACDFs. Three-level and 4-level ACDF procedures are viable options for cervical spine pathology, and the authors' analysis demonstrates an equivalent rate of fusion and time to fusion between 3- and 4-level surgeries.
dc.identifier

2020.6.SPINE20171

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1547-5654

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1547-5646

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https://hdl.handle.net/10161/28131

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eng

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Journal of Neurosurgery Publishing Group (JNSPG)

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Journal of neurosurgery. Spine

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10.3171/2020.6.spine20171

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3 levels

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4 levels

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ACDF

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ACDF = anterior cervical discectomy and fusion

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PSIF = posterior spinal instrumentation and fusion

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anterior cervical discectomy and fusion

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fusion

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time to fusion

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A single-center retrospective analysis of 3- or 4-level anterior cervical discectomy and fusion: surgical outcomes in 66 patients.

dc.type

Journal article

duke.contributor.orcid

Shaffrey, Christopher I|0000-0001-9760-8386

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1

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7

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1

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Duke

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School of Medicine

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Clinical Science Departments

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Orthopaedic Surgery

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Neurosurgery

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Published

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34

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