Market taxonomy for Types classifies devices by material composition and design. Ceramic femoral heads, valued for wear resistance and biocompatibility, constitute 35% of the market, particularly in total hip replacements. Metal alloys (cobalt-chromium or titanium), favored for their strength and cost-efficiency, dominate 40% of the segment. Polyethylene components, used in liners and acetabular cups, occupy 15%, though their wear particle generation limits long-term use. Composite materials, integrating ceramic-metal hybrids or polymer-reinforced variants, capture 10%, driven by innovations in hybrid prosthetics. This categorization underscores material-specific adoption trends, with ceramics and metals dominating mature markets, while composites gain traction in emerging economies due to cost-performance trade-offs.