Ceramic On Highly Cross Linked Polyethylene

Stambough md said in his presentation.

Ceramic on highly cross linked polyethylene.

A ceramic on highly cross linked polyethylene coxpe articulation may decrease long term wear and potentially have a longer survivorship with less ceramic fracture and squeaking than coc bearing surface and is increased use in the younger population less than 65 years old over the last 5 years as demonstrated in the national joint registry. The aim of this study was to determine the wear of large size 36 mm highly cross linked polyethylene inserts against ceramic and cobalt chrome femoral heads using a physiological hip simulator and test conditions. The crossfire polyethylene insert stryker orthopaedics was used for all cases in which a highly cross linked polyethylene liner was implanted with the biolox forte ceramtec plochingen germany used as a ceramic liner and head. Ceramic on highly cross linked polyethylene in young active patients provides excellent mid term wear and component survivorship jeffrey b.

To help ensure optimal wear resistance zimmer biomet employs a proprietary process. Removable longevity liners are available in neutral elevated oblique and 7 mm offset. There are two components of the hip joint. A the acetabulum or the cup that replaces the hip socket and is generally made out of ultra high molecular weight polyethylene or highly cross linked polyethylene metals and ceramics fig.

Longevity highly crosslinked polyethylene longevity crosslinked polyethylene was developed to address the issue of wear in total hip arthroplasty. 8 2 or a combination thereof and b the metal or ceramic head attached to a metal stem that is inserted into the femur to provide stability to the prosthesis. Biolox forte and biolox delta ball heads and cup inserts can be combined with ceramic components from the biolox family of products as well as with inserts made from conventional and highly cross linked polyethylene. The use of ceramic heads in conjunction with highly cross linked polyethylene is supported in the literature 4 5 and relies upon the principles of increased scratch resistance increased.

Cross linked polyethylene articulating against 22 225 mm alumina ceramic was observed after the first two years 5. In the ceramic on highly cross linked polyethylene group the mean preoperative harris hip score was 37 points range 11 45 points which improved to 95 points range 85 100 points at the time of final follow up.