Hannah K Weiss1, Jonathan T Yamaguchi2, Roxanna M Garcia3, Wellington K Hsu2, Zachary A Smith1, Nader S Dahdaleh4. 1. Department of Neurosurgery, Northwestern University, Chicago, Illinois, USA. 2. Department of Neurosurgery, Northwestern University, Chicago, Illinois, USA; Department of Orthopaedic Surgery, Northwestern University, Chicago, Illinois, USA. 3. Department of Neurosurgery, Northwestern University, Chicago, Illinois, USA; Institute for Public Health and Medicine (IPHAM), Center for Healthcare Studies, Northwestern University, Chicago, Illinois, USA. 4. Department of Neurosurgery, Northwestern University, Chicago, Illinois, USA. Electronic address: nader.dahdaleh@northwestern.edu.
Abstract
OBJECTIVE: Anterior cervical discectomy and fusion (ACDF) is the most common procedure for the treatment of degenerative cervical conditions. The objective of this study is to determine time-dependent trends in patient outcomes following ACDF for degenerative disease from 2006 to 2016. METHODS: We used the National Surgical Quality Improvement Program (NSQIP) database to retrospectively review all patients who underwent elective ACDF between 2006 and 2016. A descriptive statistical analysis followed by time trend analysis was performed on demographics, comorbidities, perioperative, and outcome variables. Primary outcomes were reoperation and readmission rates. Secondary outcomes were medical and surgical complications reported within 30 days of operation. RESULTS: A total of 36,854 patients underwent elective ACDF from the 2006 to 2016 NSQIP database. Mean age increased from 48.19 years [standard error: 1.49] in 2006 to 54.08 years [standard error: 0.12] in 2016 (P < 0.001). There was a significantly greater number of outpatient procedures from 2012 to 2016 (P < 0.001). The proportion of patients with American Society of Anesthesiologists classes 3/4 significantly increased over time (P < 0.001, P < 0.001, P = 0.005, respectively). Readmission risk, first documented in NSQIP in 2011, increased over time from 2011 to 2016 (P < 0.001). Unplanned reoperations have remained consistent at about 1.4%. Postoperative complications varied over time with no discernable patterns or trends. CONCLUSIONS: Since the establishment of the NSQIP database, there have been no considerable improvements in reoperation or postoperative complication rates based on available data, however, there have been increased rates of readmission. Changes in data collection and an aging patient population with greater burden of comorbidities could confound these trends.
OBJECTIVE: Anterior cervical discectomy and fusion (ACDF) is the most common procedure for the treatment of degenerative cervical conditions. The objective of this study is to determine time-dependent trends in patient outcomes following ACDF for degenerative disease from 2006 to 2016. METHODS: We used the National Surgical Quality Improvement Program (NSQIP) database to retrospectively review all patients who underwent elective ACDF between 2006 and 2016. A descriptive statistical analysis followed by time trend analysis was performed on demographics, comorbidities, perioperative, and outcome variables. Primary outcomes were reoperation and readmission rates. Secondary outcomes were medical and surgical complications reported within 30 days of operation. RESULTS: A total of 36,854 patients underwent elective ACDF from the 2006 to 2016 NSQIP database. Mean age increased from 48.19 years [standard error: 1.49] in 2006 to 54.08 years [standard error: 0.12] in 2016 (P < 0.001). There was a significantly greater number of outpatient procedures from 2012 to 2016 (P < 0.001). The proportion of patients with American Society of Anesthesiologists classes 3/4 significantly increased over time (P < 0.001, P < 0.001, P = 0.005, respectively). Readmission risk, first documented in NSQIP in 2011, increased over time from 2011 to 2016 (P < 0.001). Unplanned reoperations have remained consistent at about 1.4%. Postoperative complications varied over time with no discernable patterns or trends. CONCLUSIONS: Since the establishment of the NSQIP database, there have been no considerable improvements in reoperation or postoperative complication rates based on available data, however, there have been increased rates of readmission. Changes in data collection and an aging patient population with greater burden of comorbidities could confound these trends.
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