{"id":"W2042968830","doi":"10.1097/brs.0000000000000113","title":"Utilization Trends of Cervical Artificial Disc Replacement After FDA Approval Compared With Anterior Cervical Fusion","year":2013,"lang":"en","type":"article","venue":"Spine","topic":"Cervical and Thoracic Myelopathy","field":"Medicine","cited_by":52,"is_retracted":false,"has_abstract":true,"ca_institutions":"Discovery Air (Canada)","funders":"","keywords":"Medicine; Anterior cervical discectomy and fusion; Investigational device exemption; Medicaid; Food and drug administration; Population; Institutional review board; Trial registration; Surgery; Environmental health; Randomized controlled trial; Health care; Cervical spine","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"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":[0.0008176706,0.0001877775,0.0003103187,0.001607904,0.0002422421,0.0005957525,0.0003447544,0.0005822584,0.00112332],"category_scores_gemma":[0.00263396,0.00024393,0.0008606813,0.002426969,0.0001894475,0.0005232535,0.0003537875,0.0005335812,0.0001822618],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0006634908,"about_ca_system_score_gemma":0.0005915096,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01308292,"about_ca_topic_score_gemma":0.01379608,"domain_scores_codex":[0.9989132,0.0002322252,0.0002093944,0.0002857896,0.0002088016,0.0001507694],"domain_scores_gemma":[0.995346,0.0005308407,0.003257812,0.0001274454,0.0004508331,0.0002870129],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00007842371,0.00002784776,0.9992757,0.00001136183,0.00008959071,0.00001705044,0.00002001546,0.00002408982,0.00004964145,0.000008781024,0.00006513792,0.0003323367],"study_design_scores_gemma":[0.000006015151,0.00009955548,0.9993857,0.000007298587,0.00003362176,0.00009455686,0.00009164276,0.0001320159,0.0000270222,0.000005077559,0.0001144497,0.000002931886],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.99732,0.0004567021,0.00006410004,0.00004481908,0.000005761987,0.00001349821,0.001720104,0.000003447242,0.0003715911],"genre_scores_gemma":[0.9978955,0.000214712,0.0000762863,0.00003812451,0.00001128596,0.00002635355,0.001593911,0.000002224425,0.0001416092],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01308292,"threshold_uncertainty_score":0.02601355,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02622707359834095,"score_gpt":0.2875340373781259,"score_spread":0.2613069637797849,"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."}}