{"id":"W4416500185","doi":"10.1302/1358-992x.2025.14.032","title":"REVISION LUMBAR FUSIONS EXHIBIT WORSE CLINICAL OUTCOMES WHEN COMPARED WITH PRIMARY FUSIONS: A MATCHED COHORT ANALYSIS USING THE CANADIAN SPINE OUTCOMES AND RESEARCH NETWORK REGISTRY","year":2025,"lang":"en","type":"article","venue":"Orthopaedic Proceedings","topic":"Spine and Intervertebral Disc Pathology","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Lumbar; Confounding; Lumbar spinal stenosis; Propensity score matching; Concomitant; Cohort; Lumbar spine; Cohort study","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00179163,0.0005112246,0.0007990074,0.00195919,0.001367854,0.001086288,0.001010275,0.0004815265,0.001956577],"category_scores_gemma":[0.00361187,0.0004227946,0.001191869,0.003499446,0.0005408817,0.0005367696,0.001020466,0.0007089867,0.0002207069],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002844171,"about_ca_system_score_gemma":0.003856189,"about_ca_topic_candidate":true,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.3339583,"about_ca_topic_score_gemma":0.3468227,"domain_scores_codex":[0.9980398,0.0002269127,0.0001802435,0.0004434033,0.0007117341,0.0003980248],"domain_scores_gemma":[0.9977551,0.0002601597,0.0008452712,0.0002992647,0.0005127841,0.0003274452],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002920147,0.00003011583,0.9981782,0.000016812,0.0001614063,0.00008518399,0.00009468981,0.00002660992,0.0000873489,0.00002472253,0.0001433431,0.0008594573],"study_design_scores_gemma":[0.00002648126,0.0001173025,0.9990257,0.000006087681,0.00007709034,0.0001619253,0.0001772277,0.0001643515,0.00002398352,0.00001369872,0.0001978689,0.000008407421],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9980111,0.0002428514,0.00009704127,0.00002791874,0.000007265992,0.00006803585,0.001239789,0.000004427428,0.0003017171],"genre_scores_gemma":[0.9983447,0.0001462012,0.0001335065,0.00002282327,0.00000982747,0.0000363472,0.001209343,0.000002922403,0.00009433198],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.6660417,"threshold_uncertainty_score":0.6640289,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.06044091840646151,"score_gpt":0.3831554867443748,"score_spread":0.3227145683379132,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}