title: Accuracy of digital preoperative templating in 100 consecutive uncemented total hip arthroplasties: a single surgeon series.
abstract: Digital templating is an accurate method of assessing femoral and acetabular component sizes. This allows surgeons to foresee potential problems and also recognize an intraoperative error when a large discrepancy exists between a trial component and the templated size. Preoperative templating data of pelvic radiographs from 100 consecutive patients receiving uncemented implants were templated with Orthoview software (version 2.0CEN; Meridian Technique Ltd, Southampton, United Kingdom). Seventy-five percent of stems were templated to within 0.5 size, and 98%, to within 1 size. Eighty percent of cups were templated to within 2 mm, and 98%, to within 4 mm, and 62% of head length was accurately template. Seven patients were converted from a templated 132° to a 127° femoral prosthesis neck angle. The mean lower limb length discrepancy was +0.05 mm (SD, 5.1 mm) postoperatively.
authors.affiliation: Sports Surgery Clinic, Dublin, Republic of Ireland.
authors.forename: Shahril R
authors.initials: SR
authors.lastname: Shaarani
authors.forename: Gavin
authors.initials: G
authors.lastname: McHugh
authors.forename: Denis A
authors.initials: DA
authors.lastname: Collins
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging / Q000601:surgery; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D001843:Bone Cements; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery; D006621:Hip Joint / Q000000981:diagnostic imaging* / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D007592:Joint Diseases / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care; D017755:Prosthesis Fitting / Q000379:methods*; D011859:Radiography; D012984:Software; D025321:Surgery, Computer-Assisted
chemical_list: D001843:Bone Cements