Periprosthetic fractures after total knee arthroplasty (TKA) have devastating consequences. Osteoporosis increases periprosthetic fracture risk, but distal femur bone mineral density (BMD) is not measured post-TKA. ⋯ BMD measurement reproducibility was good. Standardized DXA regions of interest are proposed.
T Blaty, D Krueger, R Illgen, M Squire, B Heiderscheit, N Binkley, and P Anderson.
Osteoporosis Clinical Research Program, University of Wisconsin School of Medicine and Public Health, 2870 University Ave. Ste. 100, Madison, WI, 53705, USA.
Osteoporos Int. 2019 Feb 1; 30 (2): 383-390.
AbstractPeriprosthetic fractures after total knee arthroplasty (TKA) have devastating consequences. Osteoporosis increases periprosthetic fracture risk, but distal femur bone mineral density (BMD) is not measured post-TKA. This study measured distal femur BMD and cortical width; both were lower in the TKA compared to the non-operated leg. BMD measurement reproducibility was good. Standardized DXA regions of interest are proposed.