Impact of Elderly Age on Complications and Clinical Outcomes Following Anterior Lumbar Interbody Fusion Surgery

Publication date: September 2017
Source:World Neurosurgery, Volume 105
Author(s): Kevin Phan, Vignesh Ramachandran, Tommy Tran, Steven Phan, Prashanth J. Rao, Ralph J. Mobbs
BackgroundAnterior lumbar interbody fusion (ALIF) is a surgical technique used to treat patients with a variety of lumbar pathologies. Identification of risk factors leading to complication following ALIF surgery may allow surgeons to better judge candidacy and optimize care for high-risk patients.MethodsA retrospective analysis was conducted on a prospectively collected database of 137 patients who all underwent ALIF surgery by a single primary spine surgeon. Patients were separated into age-based cohorts (≤49, 50–63, and ≥64 years of age). Chi-squared, Fisher exact test, and multivariate logistic regression models were used to identify independent risk factors.ResultsA total of 137 patients met the inclusion criteria. Patients were divided into age-based tertiles as follows: Group 1 (<49 years old, n = 45, 32.8%), Group 2 (50–63 years old, n = 46, 33.6%), and Group 3 (64 years old, n = 46, 33.6%). Univariate analysis revealed increasing age (relative to Group 1) to be an independent risk factor for postoperative hematoma and delayed subsidence at 6 weeks and 12 weeks postoperatively compared with immediately post operation (all P < 0.05). No significant differences were found among the groups in terms of clinical outcome. Multivariate analysis also demonstrated increased age to be independently associated with greater prevalence of delayed subsidence (odds ratio 9.174, P = 0.029).ConclusionsIncreased age was not associated with adverse perioperative outcomes and complications of ALIF. However, there was an increased incidence of delayed subsidence in patients ≥64 years old.



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