Smith+Nephew has launched its OR3O dual mobility system for primary and revision hip arthroplasty in India.
 
Compared with traditional solutions, dual-mobility implants have a small diameter femoral head that locks into a larger polyethylene insert. Smith+Nephew said this can increase stability, reduce dislocation risk, and provide better range of motion.
 
Most hip implants also use a cobalt-chrome (CoCr) liner with CoCr/SST or ceramic head balls. OR3O uses Smith+Nephew’s OXINIUM DH bearing surface for its liner and OXINIUM on XLPE for its femoral head and polyethylene inserts. According to the company, this removes both the modular CoCr liner and/or CoCr head ball from the construct, reducing wear and corrosion risks associated with the alloy.
 
OXINIUM DH (diffusion hardened) is a variation of the company’s OXINIUM tech platform, which increases depth of hardening via an additive manufacturing process. OR3O is cross-compatible with Smith+Nephew’s R3 acetabular system.
 
“Smith+Nephew’s OR3O Dual Mobility System is a groundbreaking introduction for India that offers technology not available in other systems,” Joaquin Lasso, managing director, South Asia for Smith+Nephew told the press. “Over a dozen peer reviewed publications have now cited or expressed concerns over corrosion or elevated ions in CoCr modular dual mobility liners. The reduced corrosion of our OXINIUM and OXINIUM DH bearing surface sets OR3O apart from the competition.”