Tanmoy Loha, Rounak Bhattacharya, Bidyut Pal, Andrew A Amis
The use of uncemented stems in hip arthroplasty has been increasing, even in osteoporotic patients. The major concerns of uncemented hip-stems, however, are peri-prosthetic fracture, thigh pain, and proximal femoral stress-/strain-shielding. In this study, a novel design of uncemented hip-stem is proposed that will reduce such concerns, improve osseointegration, and benefit both osteoporotic and arthritic patients. The stem has a central titanium alloy core surrounded by a set of radial buttresses that are partly porous titanium, as is the stem tip...
April 21, 2024: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine