title: Measuring the Femoral Head Size--An Additional Real-Time Intraoperative Monitoring Tool for the Accuracy of the Preoperative Process and Implant Selection.
abstract: The purpose of this study was to examine the correlation between the implanted cup's outer diameter and the actual femoral head diameter removed during surgery. Seventy-five patients with primary total hip arthroplasty were evaluated. The difference between the implanted cup diameter and the femoral head diameter was calculated for each patient. The mean±SD actual femoral head diameter that was removed and measured during surgery was 48.5±3.7 mm. The mean±SD cementless implanted cup outer diameter was 51.8±3.5 mm. A high correlation was found between the implanted cup diameter and the actual femoral head diameter (r=0.923). A cut-off point of 4mm of the measured femoral head diameter should be considered as an additional monitoring indicator.
authors.affiliation: Department of Orthopedic Surgery, HaEmek Medical Center, Afula, Israel.
authors.forename: Oren
authors.initials: O
authors.lastname: Ben Lulu
authors.affiliation: Department of Orthopedic Surgery, HaEmek Medical Center, Afula, Israel; Faculty of Medicine, Technion, Haifa, Israel.
authors.forename: Guy
authors.initials: G
authors.lastname: Rubin
authors.affiliation: Department of Orthopedic Surgery, HaEmek Medical Center, Afula, Israel.
authors.forename: Semion
authors.initials: S
authors.lastname: Krasnyansky
authors.affiliation: AposTherapy Research Group, Herzliya, Israel.
authors.forename: Avi
authors.initials: A
authors.lastname: Elbaz
authors.affiliation: AposTherapy Research Group, Herzliya, Israel.
authors.forename: Ganit
authors.initials: G
authors.lastname: Segal
authors.affiliation: Department of Orthopedic Surgery, HaEmek Medical Center, Afula, Israel; Faculty of Medicine, Technion, Haifa, Israel.
authors.forename: Nimrod
authors.initials: N
authors.lastname: Rozen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D005260:Female; D005270:Femur Head / Q000033:anatomy & histology*; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D012189:Retrospective Studies
keywords: actual femoral head size; cup size; pre-operative planning; templating; total hip arthroplasty