Kawata Tomotoshi, Goto Koji, So Kazutaka, Kuroda Yutaka, Matsuda Shuichi
Institution Department of Orthopedic Surgery, Kyoto University, 54 Kawahara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
J Orthop. 2017 Aug 10;14(4):520-524. doi: 10.1016/j.jor.2017.08.010. eCollection 2017 Dec.
We investigated the long-term tribological outcomes of conventional polyethylene (CPE) and highly cross-linked polyethylene (HXLPE).
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.
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).
HXLPE had significantly less wear than CPE, and polyethylene wear was associated with osteolysis.
我们研究了传统聚乙烯（CPE）和高度交联聚乙烯（HXLPE）的长期摩擦学结果。
我们医院连续进行了94例初次骨水泥全髋关节置换术，使用的是HXLPE或CPE。26髋使用CPE髋臼杯，68髋植入HXLPE髋臼杯。
69例完成了10年随访。计算得出CPE的线性磨损率为0.138±0.074毫米/年，HXLPE为0.011±0.020毫米/年。10例发现骨溶解（CPE组7例；HXLPE组3例）。
HXLPE的磨损明显少于CPE，且聚乙烯磨损与骨溶解有关。
