Mpact Highcross UHMWPE Liner - Non-constrained polyethylene acetabular liner

Intended purpose

The Mpact Highcross UHMWPE Liner is designed to be used in total hip arthroplasty to provide increased patient mobility and reduced pain by replacing the damaged hip joint for primary or revision surgery

Functional description

The highly crossed linked Ultra High Molecular Weight Polyethylene (UMHWPE) fixed liner is used together with the Mpact Acetabluar system. The HighCross treated liners have high wear resistance. The polyethylene liner has a locking system which reduces stresses at the liner/shell interface and minimizes the risk of liner rim fracture should impingement occur. The match between anti-rotation tabs in the liner and indentions on the shell limits rotational micro-movement and potential backside wear