title: A low-cost digital templating system for total hip arthroplasty.
abstract: Acetate templating for total hip arthroplasty (THA) is cumbersome and inaccurate. High cost hampers mainstream use of digital templating despite ease of use and accuracy. The aim of this study was to validate a low-cost digital THA templating system. Low-cost digital templating software was created using C# programming language. On the basis of power calculations, three surgeons templated 20 consecutive anteroposterior pelvis X-rays using this software against an industry standard. Intraclass correlation coefficient for both systems was approximately .90 for component size and femoral neck cut position. Bland-Altman plots demonstrated that both systems predicted actual implant size with similar accuracy. Interrater reliability was not significantly different between the two systems. This low-cost digital THA templating system is up to 12-fold lower in cost than currently available software with similar accuracy.
authors.affiliation: Department of Orthopedic Surgery, New England Baptist Hospital, Tufts University School of Medicine, Boston, Massachusetts. snandi@nebh.org.
authors.forename: Sumon
authors.initials: S
authors.lastname: Nandi
authors.forename: Mehran
authors.initials: M
authors.lastname: Aghazadeh
authors.forename: Alexander
authors.initials: A
authors.lastname: Van der Ven
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Peretz
authors.forename: Geoffrey
authors.initials: G
authors.lastname: VanFlandern
authors.forename: James V
authors.initials: JV
authors.lastname: Bono
mesh_terms: D019644:Arthroplasty, Replacement, Hip; D006801:Humans; D010347:Patient Care Planning; D011857:Radiographic Image Interpretation, Computer-Assisted; D012984:Software