{"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":"codex-gemma-dda1882f352a","candidate_categories":["insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.0001105614,0.0001895453,0.0004397097,0.0001209706,0.00004006484,0.00001907932,0.00007553311,0.0000925179,0.008009757],"category_scores_gemma":[0.0000177283,0.0001236154,0.00009164806,0.000391092,0.000104575,0.00007759764,0.00009252513,0.0001465343,0.00009878226],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00003705356,"about_ca_system_score_gemma":0.00003487017,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001219531,"about_ca_topic_score_gemma":0.00008407789,"domain_scores_codex":[0.9984555,0.00003946995,0.0004806778,0.0003387105,0.0004241569,0.0002615433],"domain_scores_gemma":[0.9991738,0.000009423323,0.000107525,0.0003519683,0.0001538054,0.0002034316],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"observational","study_design_scores_codex":[0.01148143,0.002920288,0.09077337,0.00125541,0.0001731007,0.0001071904,0.001227024,0.00001286992,0.03643352,0.000745928,0.0004191026,0.8544508],"study_design_scores_gemma":[0.002199781,0.001916543,0.975889,0.0003420678,0.0001503332,0.00006081372,0.0002266839,0.008300113,0.00792538,0.0001569928,0.002577402,0.0002549155],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9914144,0.0001061435,0.00228815,0.002613535,0.0001159244,0.0004001987,0.00001170839,0.00006265975,0.002987301],"genre_scores_gemma":[0.996614,0.00001112276,0.001535513,0.0003164307,0.0002407589,0.00007276636,0.000145684,0.00002331762,0.001040439],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.8851156,"threshold_uncertainty_score":0.992897,"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."}}