MA626

The liner functions as part of a double mobility system. The liner articulates with an acetabular cup and femoral head as part of a total hip arthroplasty. The liner has an inner clearance of 0.3 mm with respect to the femoral head. The outer clearance has been increased to 0.6 mm to avoid locking of the outer joint due to the interposition of fibrous tissue. The centre of the inner head is cranialized with respect to the centre of the liner (1,5 mm), to permit the self-centring of the system.