PMID- 38465953 OWN - NLM STAT- Publisher LR - 20240311 IS - 1524-4040 (Electronic) IS - 0148-396X (Linking) DP - 2024 Mar 11 TI - The Effects of Peri-Operative Adverse Events on Clinical and Patient-Reported Outcomes After Surgery for Degenerative Cervical Myelopathy: An Observational Cohort Study from the Canadian Spine Outcomes and Research Network. LID - 10.1227/neu.0000000000002896 [doi] AB - BACKGROUND AND OBJECTIVES: There is a lack of data examining the effects of perioperative adverse events (AEs) on long-term outcomes for patients undergoing surgery for degenerative cervical myelopathy. We aimed to investigate associations between the occurrence of perioperative AEs and coprimary outcomes: (1) modified Japanese Orthopaedic Association (mJOA) score and (2) Neck Disability Index (NDI) score. METHODS: We analyzed data from 800 patients prospectively enrolled in the Canadian Spine Outcomes and Research Network multicenter observational study. The Spine AEs Severity system was used to collect intraoperative and postoperative AEs. Patients were assessed at up to 2 years after surgery using the NDI and the mJOA scale. We used a linear mixed-effect regression to assess the influence of AEs on longitudinal outcome measures as well as multivariable logistic regression to assess factors associated with meeting minimal clinically important difference (MCID) thresholds at 1 year. RESULTS: There were 167 (20.9%) patients with minor AEs and 36 (4.5%) patients with major AEs. The occurrence of major AEs was associated with an average increase in NDI of 6.8 points (95% CI: 1.1-12.4, P = .019) and reduction of 1.5 points for mJOA scores (95% CI: -2.3 to -0.8, P < .001) up to 2 years after surgery. Occurrence of major AEs reduced the odds of patients achieving MCID targets at 1 year after surgery for mJOA (odds ratio 0.23, 95% CI: 0.086-0.53, P = .001) and for NDI (odds ratio 0.34, 95% CI: 0.11-0.84, P = .032). CONCLUSION: Major AEs were associated with reduced functional gains and worse recovery trajectories for patients undergoing surgery for degenerative cervical myelopathy. Occurrence of major AEs reduced the probability of achieving mJOA and NDI MCID thresholds at 1 year. Both minor and major AEs significantly increased health resource utilization by reducing the proportion of discharges home and increasing length of stay. CI - Copyright (c) Congress of Neurological Surgeons 2024. All rights reserved. FAU - Malhotra, Armaan K AU - Malhotra AK AUID- ORCID: 0009-0001-1759-7160 AD - Division of Neurosurgery, Unity Health, University of Toronto, Toronto, Ontario, Canada. AD - Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada. AD - Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada. FAU - Evaniew, Nathan AU - Evaniew N AD - University of Calgary Spine Program, University of Calgary, Alberta, Canada. FAU - Dea, Nicolas AU - Dea N AD - Department of Orthopaedic Surgery, Combined Neurosurgical and Orthopaedic Spine Program, University of British Columbia, Vancouver, British Columbia, Canada. FAU - Fisher, Charles G AU - Fisher CG AD - Department of Orthopaedic Surgery, Combined Neurosurgical and Orthopaedic Spine Program, University of British Columbia, Vancouver, British Columbia, Canada. FAU - Street, John T AU - Street JT AD - Department of Orthopaedic Surgery, Combined Neurosurgical and Orthopaedic Spine Program, University of British Columbia, Vancouver, British Columbia, Canada. FAU - Cadotte, David W AU - Cadotte DW AD - University of Calgary Spine Program, University of Calgary, Alberta, Canada. FAU - Jacobs, W Bradley AU - Jacobs WB AD - University of Calgary Spine Program, University of Calgary, Alberta, Canada. FAU - Thomas, Kenneth C AU - Thomas KC AD - University of Calgary Spine Program, University of Calgary, Alberta, Canada. FAU - Attabib, Najmedden AU - Attabib N AD - Division of Neurosurgery, Zone 2, Horizon Health Network, Canada East Spine Centre, Saint John, New Brunswick, Canada. FAU - Manson, Neil AU - Manson N AD - Division of Orthopaedics, Canada East Spine Centre and Horizon Health Network, Saint John, New Brunswick, Canada. FAU - Hall, Hamilton AU - Hall H AD - Department of Surgery, University of Toronto, Toronto, Ontario, Canada. FAU - Bailey, Christopher S AU - Bailey CS AD - Department of Surgery, London Health Science Centre Combined Neurosurgical and Orthopaedic Spine Program, Schulich School of Medicine, Western University, London, Ontario, Canada. FAU - Nataraj, Andrew AU - Nataraj A AD - Division of Neurosurgery, University of Alberta, Edmonton, Alberta, Canada. FAU - Phan, Philippe AU - Phan P AD - Division of Orthopaedic Surgery, The Ottawa Hospital, Civic Campus, University of Ottawa, Ottawa, Ontario, Canada. FAU - Rampersaud, Y Raja AU - Rampersaud YR AD - Department of Surgery, Schroeder Arthritis Institute, Krembil Research Institute, Orthopaedics, University of Toronto, Toronto, Ontario, Canada. FAU - Paquet, Jerome AU - Paquet J AD - Centre de Recherche CHU de Quebec, CHU de Quebec-Universite Laval, Quebec City, Quebec, Canada. FAU - Weber, Michael H AU - Weber MH AD - Division of Orthopaedics, Department of Surgery, Montreal General Hospital, McGill University, Montreal, Quebec, Canada. FAU - Christie, Sean D AU - Christie SD AD - Department of Surgery, Dalhousie University, Halifax, Nova Scotia, Canada. FAU - McIntosh, Greg AU - McIntosh G AD - Canadian Spine Outcomes and Research Network, Markdale, Ontario, Canada. FAU - Wilson, Jefferson R AU - Wilson JR AD - Division of Neurosurgery, Unity Health, University of Toronto, Toronto, Ontario, Canada. AD - Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada. AD - Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada. LA - eng PT - Journal Article DEP - 20240311 PL - United States TA - Neurosurgery JT - Neurosurgery JID - 7802914 SB - IM EDAT- 2024/03/11 12:42 MHDA- 2024/03/11 12:42 CRDT- 2024/03/11 09:05 PHST- 2023/09/08 00:00 [received] PHST- 2024/01/08 00:00 [accepted] PHST- 2024/03/11 12:42 [medline] PHST- 2024/03/11 12:42 [pubmed] PHST- 2024/03/11 09:05 [entrez] AID - 00006123-990000000-01080 [pii] AID - 10.1227/neu.0000000000002896 [doi] PST - aheadofprint SO - Neurosurgery. 2024 Mar 11. doi: 10.1227/neu.0000000000002896.