title: Letter to the editor.
authors.forename: Samer S
authors.initials: SS
authors.lastname: Hasan
authors.forename: Marty
authors.initials: M
authors.lastname: Levy
authors.forename: Frank R
authors.initials: FR
authors.lastname: Noyes
authors.forename: Stephanie A
authors.initials: SA
authors.lastname: Moller
authors.forename: April
authors.initials: A
authors.lastname: Zambelli-Weiner
authors.forename: Charles L
authors.initials: CL
authors.lastname: Beck
authors.forename: Robert
authors.initials: R
authors.lastname: Townsley
authors.forename: Elizabeth P
authors.initials: EP
authors.lastname: Beck
authors.forename: Brent
authors.initials: B
authors.lastname: Hansen
mesh_terms: D000779:Anesthetics, Local / Q000008:administration & dosage / Q000009:adverse effects*; D001182:Arthroscopy / Q000009:adverse effects*; D002045:Bupivacaine / Q000008:administration & dosage / Q000009:adverse effects*; D002357:Cartilage Diseases / Q000175:diagnosis / Q000209:etiology*; D019902:Chondrocytes / Q000187:drug effects; D015331:Cohort Studies; D004837:Epinephrine / Q000008:administration & dosage / Q000009:adverse effects*; D019317:Evidence-Based Medicine; D006801:Humans; D007260:Infusion Pumps / Q000009:adverse effects*; D007270:Injections, Intra-Articular; D010149:Postoperative Pain / Q000188:drug therapy*; D012189:Retrospective Studies; D012785:Shoulder Joint / Q000601:surgery*
chemical_list: D000779:Anesthetics, Local; D002045:Bupivacaine; D004837:Epinephrine