The Articular Surface Replacement (ASR) hip resurfacing from DePuy was introduced in July 2003, at around the same time as a number of other hip resurfacing devices. It was marketed as having the advantages of a reduced diametrical clearance (said to reduce wear) and a sub-hemispherical cup...

The Cenator acetabular cup is manufactured from ultra high molecular weight polyethylene and achieves fixation via bone cement. The internal diameters of the Cenator cup are available in size 22, 26 and 28mm, and can be selected with or without an extended posterior wall and cement...

The TriboFit is an unusual socket made of a semi-flexible translucent material which is highly hydrophilic and which therefore maintains a layer of fluid around the femoral head. It is said to be associated with almost no wear as there is no physical contact between components. The associated...

The Symbios hip system is a cementless, HA coated, Swiss manufactured hip system which comes in proximally coated, fully coated, modular and monoblock varieties. The stem is titanium and is either anatomic (the SPS) or straight stem (the Harmony). The system is marketed with preoperative...

The MITCH hip resurfacing system is a metal on metal hip resurfacing device manufactured by Finsbury for Stryker. The bearing is a high precision ‘as cast’ high carbon cobalt chrome bearing. Finsbury has experience of hip resurfacing systems and markets its own system (the ADEPT...