Elina Zaretsky MD, MA, Presenter: Nothing to Disclose

Kevin R. Math MD, Abstract Co-Author: Nothing to Disclose

Douglas S. Katz MD, Abstract Co-Author: Nothing to Disclose

Steven Harwin, Abstract Co-Author: Nothing to Disclose

CT is an effective method of assessment of the painful joint arthroplasty, and can be used to detect common conditions such as loosening, periprosthetic fracture, osteolysis related to particulate debris, and component malalignment or malpositioning. The exhibit will: 1) Review and demonstrate the current utility of multi-detector CT for the assessment of the painful knee and hip joint arthroplasty, including loosening, periprosthetic fracture, osteolysis related to particulate debris, and component malalignment or malpositioning. 2) Demonstrate how current CT technology and techniques minimize the previously substantial problem of beam hardening artifacts.  

1) Describe the optimal positioning of the acetabular and femoral components of a total hip arthroplasty (THA) and optimal rotational alignment of the femoral and tibial components of a total knee arthroplasty (TKA). 2) Describe and illustrate methods of CT assessment of important measurements of THA and TKA including acetabular version, acetabular cup abduction and femoral anteversion as well as the rotational alignment of the femoral and tibial components. 3) Review the important anatomical landmarks utilized for these measurements. 4) Present radiographic imaging as well as cadaveric specimens and intra-operative photographs to illustrate key principles.  

http://abstract.rsna.org/uploads/2014/14006810/14006810_jmxu.pdf

Zaretsky, E, Math, K, Katz, D, Harwin, S, Utility of Multi-detector CT for the Evaluation of Hip and Knee Arthroplasty: Assessment of Component Alignment and Complications.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14006810.html