{"id":"W4413814530","doi":"10.1016/j.bja.2025.07.057","title":"Impact of peripheral nerve blocks on chronic opioid use after elective total knee arthroplasty from a large US claims database. Comment on Br J Anaesth 2025; 134: 1779–83","year":2025,"lang":"en","type":"letter","venue":"British Journal of Anaesthesia","topic":"Anesthesia and Pain Management","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"South Health Campus","funders":"","keywords":"Medicine; Arthroplasty; Peripheral; Opioid; Peripheral nerve; Total knee arthroplasty; Anesthesia; Surgery; Internal medicine; Anatomy","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":[0.00542452,0.0003172822,0.00080296,0.001183531,0.001404057,0.001928113,0.001109689,0.0100407,0.007244037],"category_scores_gemma":[0.0508453,0.0004428941,0.001297475,0.00391591,0.0009335192,0.001290698,0.001167863,0.006200363,0.003345448],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002832853,"about_ca_system_score_gemma":0.003597513,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.04992164,"about_ca_topic_score_gemma":0.07241699,"domain_scores_codex":[0.9934329,0.001910317,0.001504265,0.0006014887,0.001979161,0.0005718801],"domain_scores_gemma":[0.9463103,0.03839186,0.00707953,0.001312843,0.004797501,0.002107952],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"observational","study_design_scores_codex":[0.0007144065,0.00005699791,0.07221217,0.0002210955,0.000154456,0.002294063,0.0003953655,0.0001670286,0.000225522,0.0008490003,0.9097633,0.01294659],"study_design_scores_gemma":[0.001201339,0.0004499606,0.5105028,0.003288747,0.001357177,0.007515162,0.003825097,0.004139864,0.001219027,0.00803924,0.4578494,0.0006123412],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"commentary","genre_gemma":"commentary","genre_scores_codex":[0.02350779,0.002377735,0.0001673147,0.9458467,0.00775775,0.0000221434,0.01194631,0.00007361063,0.008300616],"genre_scores_gemma":[0.1375357,0.002139594,0.0004118621,0.8286693,0.01936443,0.0001045707,0.005066386,0.0000624337,0.006645751],"genre_candidate":"commentary","genre_consensus":"commentary","teacher_disagreement_score":0.04992164,"threshold_uncertainty_score":0.09926212,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01058724480078709,"score_gpt":0.2540750792052025,"score_spread":0.2434878344044154,"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."}}