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The Bone & Joint Journal
Vol. 98-B, Issue 12 | Pages 1604 - 1610
1 Dec 2016
Callary SA Field JR Campbell DG

Aims

The increased in vivo resistance to wear of highly crosslinked polyethylene (HXLPE) in total hip arthroplasty (THA) has led to an increased use of larger articulations which have been shown to reduce the incidence of early dislocation. To date, there are few reports of the wear of larger articulations using second generation HXLPE liners. Our prospective cohort study measured the bedding-in and early wear of large (36 mm and 40 mm diameter) articulations involving a second generation X3 HXLPE liner and compared our findings with previous clinical and in vitro studies of the same material.

Patients and Methods

The proximal penetration of the femoral head five years post-operatively was measured for 15 patients using radiostereometric analysis (RSA).