title: Acetabular imprinting device (AID) improves acetabular component positioning: a Sawbones® study.
abstract: The purpose of this study was to define the ability of a novel acetabular positioning device with 3D preoperative planning (AID) to improve acetabular component placement in total hip arthroplasty. Four surgeons placed the acetabular component in two Sawbones® models using three different methods: standard method, 3D planning method, and the AID method. The AID significantly decreased the mean deviation of actual acetabular component inclination from the preoperative plan when compared with standard and 3D planning methods (p = 0.003). Overall, AID reduced the number of malpositioned implants to 12.5%, compared with 87.5% in the standard method and 75% in the 3D planning method without use of the AID (p = 0.005). A clinical trial is needed to compare AID to standard surgical techniques.
authors: Department of Orthopaedic Surgery Cleveland Clinic Cleveland, Ohio.
authors: Anas
authors: A
authors: Saleh
authors: Department of Orthopaedic Surgery Cleveland Clinic Cleveland, Ohio.
authors: Bishoy V
authors: BV
authors: Gad
authors: Department of Orthopaedic Surgery Cleveland Clinic Cleveland, Ohio.
authors: Carlos A
authors: CA
authors: Higuera
authors: Department of Orthopaedic Surgery Cleveland Clinic Cleveland, Ohio.
authors: Alison K
authors: AK
authors: Klika
authors: Department of Orthopaedic Surgery Cleveland Clinic Cleveland, Ohio.
authors: Joseph P
authors: JP
authors: Iannotti
authors: Department of Orthopaedic Surgery Cleveland Clinic Cleveland, Ohio.
authors: Wael K
authors: WK
authors: Barsoum
mesh_terms: D000077:Acetabulum / Q000473:pathology / Q000601:surgery; D019644:Arthroplasty, Replacement, Hip / Q000379:methods / Q000706:statistics & numerical data; D006622:Hip Prosthesis; D006801:Humans; D008954:Models, Biological; D015207:Osteoarthritis, Hip / Q000473:pathology / Q000601:surgery; D025321:Surgery, Computer-Assisted / Q000379:methods / Q000706:statistics & numerical data