4.5 Article

Single-level Anterior Cervical Discectomy and Fusion Results in Lower Five-year Revisions than Posterior Cervical Foraminotomy in a Large National Cohort

Journal

SPINE
Volume 48, Issue 18, Pages 1266-1271

Publisher

LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/BRS.0000000000004754

Keywords

ACDF; PCF; anterior cervical discectomy and fusion; posterior cervical foraminotomy; outcomes; database; cervical spine; radiculopathy; revisions; cervical surgical outcomes

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This study compared the effects of single-level anterior cervical discectomy and fusion (ACDF) and posterior cervical foraminotomy (PCF) on perioperative adverse events and five-year revision rates. The study found that although PCF had worse outcomes in terms of adverse events, it had a lower readmission rate compared to ACDF.
Study Design. A retrospective cohort study using the 2010-2020 MSpine PearlDiver administrative data set.Objective. To compare perioperative adverse events and five-year revisions for single-level anterior cervical discectomy and fusion (ACDF) versus posterior cervical foraminotomy (PCF).Summary of Background Data. Cervical disk disease can often be treated surgically using single-level ACDF or PCF. Prior studies have suggested that posterior approaches provide similar short-term outcomes as ACDF; however, posterior procedures may have an increased risk of revision surgery.Materials and Methods. The database was queried for patients undergoing elective single-level ACDF or PCF (excluding cases performed for myelopathy, trauma, neoplasm, and/or infection). Outcomes, including specific complications, readmission, and reoperations, were assessed. Multivariable logistic regression was used to ascertain odds ratios (OR) of 90-day adverse events controlling for age, sex, and comorbidities. Kaplan-Meier survival analysis was performed to determine five-year rates of cervical reoperation in the ACDF and PCF cohorts.Results. A total of 31,953 patients treated by ACDF (29,958, 93.76%) or PCF (1995, 6.24%) were identified. Multivariable analysis, controlling for age, sex, and comorbidities, demonstrated that PCF was associated with significantly greater odds of aggregated serious adverse events (OR 2.17, P<0.001), wound dehiscence (OR 5.89, P<0.001), surgical site infection (OR 3.66, P<0.001), and pulmonary embolism (OR 1.72, P=0.04). However, PCF was associated with significantly lower odds of readmission (OR 0.32, P<0.001), dysphagia (OR 0.44, P<0.001), and pneumonia (OR 0.50, P=0.004). At five years, PCF cases had a significantly higher cumulative revision rate compared with ACDF cases (19.0% vs. 14.8%, P<0.001).Conclusions. The current study is the largest to date to compare short-term adverse events and five-year revision rates between single-level ACDF and PCF for nonmyelopathy elective cases. Perioperative adverse events differed by procedure, and it was notable that the incidence of cumulative revisions was higher for PCF. These findings can be used in decision-making when there is clinical equipoise between ACDF and PCF.

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