{"id":"W4205952714","doi":"10.1503/cjs.012621","title":"Canadian Spine Society: 21st Annual Virtual Scientific Conference, Feb. 3, 10, 15, 17 and 24, 2021Abstract 45. Determining clinically important improvement following surgery for degenerative conditions of the spine: analysis of the Canadian Spine Outcomes and Research Network (CSORN) RegistryAbstract 31. Cost-utility analysis of microdiscectomy versus nonoperative management for the treatment of chronic radiculopathy secondary to lumbar disc herniationAbstract 44. Impact of undergoing thoracolumbar spine surgery on patient psychosocial healthAbstract 70. A comparison of functional and quality of life improvement in 6 different types of surgeryAbstract 54. The role of frailty and sarcopenia in predicting adverse events and mortality following en bloc resection of primary bone tumours and isolated metastases of the spineAbstract 27. Feasibility of achieving planned surgical margins in primary spine tumour: a PTRON studyAbstract 32. Care providers’ perspectives on potential expansion of medical assistance in dying criteria to persons with acute spinal cord injury: a qualitative studyAbstract 22. Does wait time for transfer from acute care to rehabilitation affect the outcomes following a traumatic spinal cord injury? A prospective cohort studyAbstract 86. Investigating and validating quantitative MRI biomarkers for demyelination, axon integrity and inflammation after traumatic spinal cord injuryAbstract 23. Does participating in a national spinal cord injury registry improve actual patient outcomes?Abstract 79. Can individuals expect normal quality of life following traumatic spinal cord injury? A cohort study compared with Canadian normative dataAbstract 79. Is the conversion of the American Spinal Injury Association Impairment Scale grade clinically meaningful for functional recovery in all patients with traumatic spinal cord injury?Abstract 101. Predicting massive intraoperative blood loss in adult spinal deformity surgeryAbstract 102. Use of preoperative opioids is a risk factor for persistent chronic postoperative opioid use in adult spinal deformity patientsAbstract 102. Comparison of a general (NSQIP) and spine specific (SAVES) database for the identification of spine surgery acute care adverse eventsAbstract 55. Trends in length of stay at a quaternary spinal care centre from 2006–2020Abstract 89. The impact of the COVID-19 pandemic on scheduled adult spine surgery in Toronto academic health sciences centres (AHSC): a wave 1 through early wave 2 experienceAbstract 60. Patient acceptance and satisfaction with virtual care in Ontario during and after COVID-19 lockdown restrictionsAbstract 39. Prospective randomized control study to evaluate the role of injection Cerebrolysin in operated cases of degenerative cervical myelopathyAbstract 47. Association between patient-reported outcomes and construct length in posterior cervical instrumentation for cervical spine myelopathyAbstract 52. Rate of revision surgery at adjacent and same segment for cervical disc replacement versus anterior cervical discectomy and fusionAbstract 104. Analysis of complication rates in cervical spine surgery between older patients and younger cohorts using the CSORN registry: Is age just a number?Abstract 49. Factors associated with increased length of stay in degenerative cervical spine surgery: cohort analysis from the Canadian Spine Outcomes and Research Network (CSORN)Abstract 51. Association between preoperative sagittal alignment and radiographic measures of decompression following cervical laminectomyAbstract 3. Analysis of the morphometric change in the uncinate process of cervical spondylosis patients: a study of radiologic anatomyAbstract 4. Does body mass index affect outcomes after vertebral body tethering surgery?Abstract 5. Congenital kyphosis: progressive correction with an instrumented posterior epiphysiodesisAbstract 6. The use of halo gravity traction in severe, stiff scoliosisAbstract 7. Fusing to the pelvis in the correction of scoliosis associated with Rett syndromeAbstract 8. Tuberculosis of the craniovertebral junction: its altered biomechanics and treatment strategyAbstract 9. Anatomic considerations and functional outcomes of endoscopic transiliac approach for access to L5–S1 disc and foramenAbstract 10. Five-year revision rates for elective multilevel lumbar instrumented fusions in the elderly: an analysis of state databasesAbstract 11. Lumbar PLIF without inpatient admission. Results of a standardized care protocol in over 100 selected patients treated over a 5-year periodAbstract 12. Frailty is an important predictor of 30-day morbidity in patients treated for lumbar spondylolisthesis using a posterior surgical approach: analysis of outcomes in 15 658 patients from the NSQIP databaseAbstract 13. Scoliosis flexibility correlates with postoperative outcomes following growth-friendly surgeryAbstract 14. Lumbar fusion surgery for patients with back pain and degenerative disc disease: an observational study f","year":2021,"lang":"en","type":"article","venue":"Canadian Journal of Surgery","topic":"Spine and Intervertebral Disc Pathology","field":"Medicine","cited_by":4,"is_retracted":false,"has_abstract":true,"ca_institutions":"Polytechnique Montréal; University of Alberta Hospital; Queen Elizabeth II Health Sciences Centre; Foothills Medical Centre; Krembil Foundation; Institut de Readaptation Gingras Lindsay de Montreal; University of Fredericton; Kingston General Hospital; Sault Area Hospital; Université Laval; Centre Intégré Universitaire de Santé et de Services Sociaux du Centre-Sud-de-l'Île-de-Montréal; Hospital for Sick Children; Centre hospitalier universitaire de Québec; Windsor Regional Hospital; University of Waterloo; University of British Columbia; Health Sciences North; Thunder Bay Regional Health Sciences Centre; Western University; Université de Sherbrooke; Ottawa Hospital; Children's Hospital of Eastern Ontario; University of British Columbia Hospital; University of New Brunswick; Lawson Health Research Institute; Praxis Spinal Cord Institute; Kingston Health Sciences Centre; Horizon Health Network; Sunnybrook Hospital; Centre Hospitalier Universitaire Sainte-Justine; Toronto Western Hospital; Hôpital du Sacré-Cœur de Montréal; Markham Stouffville Hospital; Queen's University; Centre Hospitalier de l’Université de Montréal; Vancouver Spine Surgery Institute; McMaster University; Canada East Spine Centre; Izaak Walton Killam Health Centre; BC Children's Hospital; Ontario Forest Research Institute; University of Winnipeg; Nova Scotia Health Authority; Memorial University of Newfoundland; University of Alberta; University of Toronto; Sunnybrook Health Science Centre; International Collaboration On Repair Discoveries; Université de Montréal; University of Manitoba; University of Saskatchewan; Saint John Regional Hospital; University of Calgary; Health Sciences Centre; University Health Network; University of Ottawa; Dalhousie University; Mount Sinai Hospital; London Health Sciences Centre; McGill University; Vancouver General Hospital","funders":"","keywords":"Medicine; SPINE (molecular biology); Surgery; General surgery; Physical therapy; Bioinformatics","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":true,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.003167715,0.002157906,0.001728423,0.003582768,0.003391736,0.005937491,0.002893488,0.003337499,0.2715443],"category_scores_gemma":[0.005918914,0.0007328269,0.001468495,0.005401787,0.001059738,0.001595251,0.002178144,0.003103493,0.08457684],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.01774843,"about_ca_system_score_gemma":0.06132923,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.7276883,"about_ca_topic_score_gemma":0.8681239,"domain_scores_codex":[0.9971179,0.0001627193,0.000114708,0.0001880062,0.001932527,0.0004842222],"domain_scores_gemma":[0.9915435,0.0002806359,0.0001837032,0.0001786874,0.005994995,0.001818447],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"not_applicable","study_design_scores_codex":[0.0000331998,0.000009344006,0.0002292237,0.0001183125,0.000005629315,0.00001091729,0.000009554989,0.0000467733,0.00004411193,0.000164276,0.9783433,0.02098546],"study_design_scores_gemma":[0.00002445108,0.00001148542,0.003165303,0.0002888308,0.0000108782,0.00001756988,0.00009898013,0.0001061438,0.00004300311,0.0001683568,0.9960474,0.00001750696],"study_design_candidate":"not_applicable","study_design_consensus":"not_applicable","genre_codex":"other","genre_gemma":"other","genre_scores_codex":[0.003406675,0.1441739,0.002550399,0.1303778,0.1329745,0.001210072,0.115944,0.001871538,0.4674912],"genre_scores_gemma":[0.01696416,0.1340798,0.004538347,0.00973509,0.01011962,0.0006177651,0.05357221,0.0008482642,0.7695247],"genre_candidate":"other","genre_consensus":"other","teacher_disagreement_score":0.2723117,"threshold_uncertainty_score":0.9084061,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.08269882176801693,"score_gpt":0.4001883245004936,"score_spread":0.3174895027324767,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). 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