Assessment of accuracy and reliability in preoperative templating for hip resurfacing arthroplasty. 2010

Michael Olsen, and Patrick Gamble, and Mark Chiu, and Nezar Tumia, and Richard A Boyle, and Emil H Schemitsch
Division of Orthopedic Surgery, St Michael's Hospital, Toronto, Ontario, Canada.

The current study investigated the accuracy and reliability of hip resurfacing component selection based on digital preoperative templating. Four surgeons made a template of preoperative radiographs on 2 occasions for acetabular and femoral components in 50 randomly selected hip resurfacing patients. Component selection reliability was variable among surgeons (kappa = 0.16-0.73) and fair between surgeons (kappa = 0.23-0.32). The average percentage of agreement for the acetabular component was 47% (range, 32%-64%) and for the femoral component was 54% (range, 38%-70%). Surgeons tended to underestimate implant size if the correct implant was not chosen (acetabular, 29%; femoral, 32%). Selection of an undersized femoral component may lead to femoral neck notching or varus implant alignment. This study emphasizes the need for intraoperative verification of preoperative templating results to ensure optimal implant selection in hip resurfacing.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011300 Preoperative Care Care given during the period prior to undergoing surgery when psychological and physical preparations are made according to the special needs of the individual patient. This period spans the time between admission to the hospital to the time the surgery begins. (From Dictionary of Health Services Management, 2d ed) Care, Preoperative,Preoperative Procedure,Preoperative Procedures,Procedure, Preoperative,Procedures, Preoperative
D011474 Prosthesis Design The plan and delineation of prostheses in general or a specific prosthesis. Design, Prosthesis,Designs, Prosthesis,Prosthesis Designs
D011859 Radiography Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film). Radiology, Diagnostic X-Ray,Roentgenography,X-Ray, Diagnostic,Diagnostic X-Ray,Diagnostic X-Ray Radiology,X-Ray Radiology, Diagnostic,Diagnostic X Ray,Diagnostic X Ray Radiology,Diagnostic X-Rays,Radiology, Diagnostic X Ray,X Ray Radiology, Diagnostic,X Ray, Diagnostic,X-Rays, Diagnostic
D005260 Female Females
D005269 Femur The longest and largest bone of the skeleton, it is situated between the hip and the knee. Trochanter,Greater Trochanter,Lesser Trochanter,Femurs,Greater Trochanters,Lesser Trochanters,Trochanter, Greater,Trochanter, Lesser,Trochanters,Trochanters, Greater,Trochanters, Lesser
D006621 Hip Joint The joint that is formed by the articulation of the head of FEMUR and the ACETABULUM of the PELVIS. Acetabulofemoral Joint,Acetabulofemoral Joints,Hip Joints,Joint, Acetabulofemoral,Joint, Hip,Joints, Acetabulofemoral,Joints, Hip
D006622 Hip Prosthesis Replacement for a hip joint. Femoral Head Prosthesis,Femoral Head Prostheses,Hip Prostheses,Prostheses, Femoral Head,Prostheses, Hip,Prosthesis, Femoral Head,Prosthesis, Hip
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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