Cemented or non-cemented femoral stem BET

The BET stem des»gn 15 double tapered and cdlartess. The cemented version has high polished surface, whereas the uncemented type is titanium porous coated. The stems have a rteck with 12/14 cone for attachment of Biotech mod Jar head system in CoCr and ceramic as well. The BET stem is available in 8 sizes in both, cement and uncemented version. Materials: The ccmcntcd 8€T stem is made of a High N stainless steel alley and the uncemcnted version is made of T*an«um alloy (T1AJ6V4), providing superior mechanical strength combined with excellent corrosion resistance, which are critical properties required for hip implants. Cemented Stems: The polished double tapered cemented BET stem creates radial compressive loading as the prédominant force, while the non-tapered stem types with non-polished surface create greater shear force by distal migration of the stem. The descending of the collarless, tapered and polished BET stem within the cernent is compressing the interfaces and enables them to resist better to the shear forces on the fémoral head. Lasting Fixation - Uncemented Stems: Long term survival of uncemented components depends not only on implant material and geometry, but also on the coating used for a biological fixation. For this reason, BioTech ™ has chosen the well-proven process of applying a circumferential plasma-sprayed porous titanium coating. This type of "closed-pore" coating has no inter-connective spaces, a pore size ranging between 75-350 micron, thickness of 500 micron and approximately 30% porosity.