Total knee replacements (TKR) both cemented and uncemented were developed almost simultaneously in the 1980’s. Cemented TKR found favor among surgeons due to its technical ease early failure of poor design. In past two decades; however, interest has been generated because design improvements which, turn, led better results, especially young active, obese, geriatric but active patients where TKR...

BACKGROUND AND PURPOSE Customized femoral stems are designed to have a perfect fit and fill in the femur in order to achieve physiological load transfer and minimize stress shielding. Dual-energy X-ray absorptiometry (DXA) is regarded as an accurate method for detection of small alterations in bone mineral density (BMD) around hip prostheses. We present medium-term DXA results from a randomized...

I discuss algorithms for constructing constrained Delaunay triangulations (CDTs) in dimensions higher than two. If the CDT of a set of vertices and constraining simplices exists, it can be constructed in O(nvns) time, where nv is the number of input vertices and ns is the number of output d-simplices. The CDT of a starshaped polytope can be constructed in O(ns log nv) time, yielding an efficien...