title: Effect of surgeon experience on femoral component size selection during total knee arthroplasty.
abstract: Femoral component size selection during total knee arthroplasty should not vary from surgeon to surgeon for patients with the same bone size. This study explored if systematic variations in femoral component size selection exist. Thirteen surgeons' choices of femoral component size (Duracon, n = 1388; Triathlon, n = 740) were analyzed using a generalized linear model with femoral component size as the dependent variable and surgeon identification, years in practice, and adult reconstruction fellowship training as the independent variables. The model adjusted for differences in bone size. It was found that more experienced surgeons implant larger femoral components. New instruments and training protocols may be necessary to adjust for surgeon experience.
authors.affiliation: Department of Orthopaedic Surgery, New England Baptist Hospital, Tufts University School of Medicine, Boston, Massachusetts 02120, USA. snandi@nebh.org
authors.forename: Sumon
authors.initials: S
authors.lastname: Nandi
authors.forename: James V
authors.initials: JV
authors.lastname: Bono
authors.forename: Mark
authors.initials: M
authors.lastname: Froimson
authors.forename: Morgan
authors.initials: M
authors.lastname: Jones
authors.forename: Boris
authors.initials: B
authors.lastname: Bershadsky
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D002983:Clinical Competence / Q000592:standards* / Q000706:statistics & numerical data; D015331:Cohort Studies; D005260:Female; D005270:Femur Head / Q000033:anatomy & histology*; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D009929:Organ Size; D009985:Orthopedics / Q000592:standards*; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult