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A total of 102 patients (102 hips) were randomised to receive either highly cross-linked Durasul, or contemporary Sulene polyethylene inserts at total hip replacement. A single blinded observer used the Martell system to assess penetration of the femoral head. At a mean follow-up of 4.9 years (4.2 to 6.1) the mean femoral head penetration rate was 0.025 mm\/year (sd 0.128) in the Durasul group compared with 0.106 mm\/year (sd 0.109) in the Sulene group (Mann-Whitney test, p = 0.0027). The mean volumetric penetration rate was 29.24 mm<jats:sup>3<\/jats:sup>\/year (sd 44.08) in the Durasul group compared with 53.32 mm<jats:sup>3<\/jats:sup>\/year (sd 48.68) in the Sulene group. The yearly volumetric penetration rate was 55% lower in the Durasul group (Mann-Whitney test, p = 0.0058). Longer term results are needed to investigate whether less osteolysis will occur. <\/jats:p>","DOI":"10.1302\/0301-620x.89b11.19543","type":"journal-article","created":{"date-parts":[[2007,11,12]],"date-time":"2007-11-12T03:27:42Z","timestamp":1194838062000},"page":"1439-1445","source":"Crossref","is-referenced-by-count":45,"title":["A comparison of the penetration rate of two polyethylene acetabular liners of different levels of cross-linking"],"prefix":"10.1302","volume":"89-B","author":[{"given":"P.","family":"Triclot","sequence":"first","affiliation":[{"name":"Centre Hospitalier Priv\u00e9 Saint Gr\u00e9goire, 6 Boulevard de la Bouti\u00e8re, CS 56816, 35768 Saint Gr\u00e9goire, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G.","family":"Grosjean","sequence":"additional","affiliation":[{"name":"Clinical Orthopaedic Research Centre, Department of Orthopaedic and Reconstructive Surgery, Service A, Centre Hospitalo-Universitaire Cochin-Port Royal, 27 Rue du Faubourg St Jacques, Paris 75014, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F.","family":"El Masri","sequence":"additional","affiliation":[{"name":"Clinical Orthopaedic Research Centre, Department of Orthopaedic and Reconstructive Surgery, Service A, Centre Hospitalo-Universitaire Cochin-Port Royal, 27 Rue du Faubourg St Jacques, Paris 75014, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. 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