Design considerations and development of cemented hip prosthesis in dogs

Abstract

Designing a cemented hip prosthesis for canine patients requires a careful balance of anatomical accuracy, mechanical stability, and surgical practicality. This short communication outlines the conceptualization and development of modular cemented femoral stems specifically tailored for canine total hip replacement (THR). The design approach focused on optimizing stem geometry, surface characteristics, and cement interdigitation to promote durable fixation and physiological load transfer. Morphometric analysis of canine femora informed dimensional refinement, leading to the creation of four modular stem sizes suitable for a wide range of dog breeds. The stems were manufactured from biocompatible 316L stainless steel and finished with a mirror-polished surface to enhance cement bonding. The resulting design provides a robust platform for subsequent biomechanical testing and clinical evaluation, with the goal of improving the performance and reliability of cemented THR implants in dogs.