Ceramic Femoral Head Wear

The fracture rate of ceramic biolox femoral heads are 0 026 for first generation alumina 0 014 for second generation alumina and 0 004 for femoral heads manufactured after 1994.

Ceramic femoral head wear.

The wear rate of ceramic on ceramic is virtually zero 0 07 μm year and even the few particles generated are completely inert. 1 however there is a concern about ceramic head fracture therefore ceramic head with polyethylene liner has been introduced. 1 2 6 ceramic on ceramic articulation has the lowest wear rate among various articulations. The retrieval analysis of the fractured alumina matrix composite ceramic head revealed an extremely wear resistant surface.

Trousdale md corrosion is the real issue when it comes to choosing between a ceramic and a cobalt chrome femoral head. Analyzing the clinical experience of more than 20 years it can be concluded that all the improvements have produced reliable ceramic femoral heads. The body mounts. The biolox delta component is a traditional one piece ceramic head indicated for primary hip arthroplasty only.

After 3 months and up to 5 years there was very little penetration of the femoral head into the liner in both groups. An alumina ceramic femoral head is a good bearing material because it is the smoothest material and therefore possesses the lowest wear properties low abrasive linear and volumetric wear. With the very low rate of wear associated with ceramic implants particularly ceramic on ceramic the surgeon is free to use a larger head and thus reduce the risk of dislocation. Less wear more options without the risks even the best cobalt chrome and ceramic femoral heads come with the risks of wear or breakage.

Our results are slightly lower than previously reported wear of ceramic and metal heads on hxlpe bearings which has been in the range of 0 012 0 067 mm y 22 29 32. Low wear with multiple liner options. Ceramic hip replacement disadvantages. Ceramic materials have been used for tha with better clinical results compared with conventional metal on polyethylene articulation.

Oxinium technology combines the strength of metal with the smoothness of ceramic to offer the benefits of both without the risks. But with oxinium femoral heads those risks are history. P biomet offers both the biolox delta and the biolox delta option ceramic femoral heads. The biolox delta option ceramic head features a titanium neck sleeve designed to allow surgeons to utilize a ceramic head in either primary or.

He noted previously published studies have shown. New generation of ceramic biolox delta can be used in order to produce large size ball heads d32 36 and 40 mm. When a larger ball head is used in a wear couple it allows to obtain an increased range of motion and stability for the patient or to reduce the risk of subluxation. A ceramic cup can not incorporate.

Larger ceramic ball heads.