INTRODUCTION: We investigated the long-term tribological outcomes of conventional polyethylene (CPE) and highly cross-linked polyethylene (HXLPE). METHODS: Ninety-four consecutive primary cemented THAs were performed using either HXLPE or CPE at our hospital. CPE sockets were used in 26 hips, and HXLPE sockets were implanted in 68 hips. RESULTS: A 10-year follow-up was completed for 69 cases. Linear wear rates of 0.138 ± 0.074 mm/year for CPE and 0.011 ± 0.020 mm/year for HXLPE were calculated. Osteolysis was identified in 10 cases (CPE group, 7; HXLPE group, 3). CONCLUSION: HXLPE had significantly less wear than CPE, and polyethylene wear was associated with osteolysis.
INTRODUCTION: We investigated the long-term tribological outcomes of conventional polyethylene (CPE) and highly cross-linked polyethylene (HXLPE). METHODS: Ninety-four consecutive primary cemented THAs were performed using either HXLPE or CPE at our hospital. CPE sockets were used in 26 hips, and HXLPE sockets were implanted in 68 hips. RESULTS: A 10-year follow-up was completed for 69 cases. Linear wear rates of 0.138 ± 0.074 mm/year for CPE and 0.011 ± 0.020 mm/year for HXLPE were calculated. Osteolysis was identified in 10 cases (CPE group, 7; HXLPE group, 3). CONCLUSION: HXLPE had significantly less wear than CPE, and polyethylene wear was associated with osteolysis.
Entities:
Keywords:
Highly cross-linked polyethylene; Polyethylene wear; Total hip arthroplasty
Authors: Nathan A Mall; Ryan M Nunley; Jin Jun Zhu; William J Maloney; Robert L Barrack; John C Clohisy Journal: Clin Orthop Relat Res Date: 2011-02 Impact factor: 4.176
Authors: Jeffrey B Stambough; Gail Pashos; Ningying Wu; Jacob A Haynes; John M Martell; John C Clohisy Journal: J Arthroplasty Date: 2015-10-28 Impact factor: 4.757