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Conference Paper: Linear Penetration of Highly Cross-linked Polyethylene in Total Hip Arthroplasty for Chinese Patients Aged 40 Years or Below

TitleLinear Penetration of Highly Cross-linked Polyethylene in Total Hip Arthroplasty for Chinese Patients Aged 40 Years or Below
Authors
Issue Date2013
PublisherHong Kong Academy of Medicine Press.
Citation
The 33rd Annual Congress of the Hong Kong Orthopaedic Association (HKOA), Hong Kong, China, 23-24 November 2013. In the Abstracts of the 33rd Annual Congress of the Hong Kong Orthopaedic Association (HKOA), 2013, p. 79, abstract no. 9.9 How to Cite?
AbstractIntroduction: The study aimed to examine the clinical outcomes and linear penetration rate of highly cross-linked polyethylene (PE) liner in young patients aged ≤ 40 years with total hip arthroplasty (THA). Methods: A retrospective review of primary THAs using marathon highly cross-linked PE liner and Duraloc cementless acetabular socket (DePuy, US) was performed. Two-dimensional wear was measured using PolyWare software on annual radiographs. Results: There were 18 THAs in 14 (7 female and 7 male) patients; 9 were on right and 9 were left THAs. Their mean (± standard deviation) age at operation was 33.7 ± 2.7 (range, 29-38) years. All patients had at least 8 years of follow-up. All articulations were of the metal-on-PE type. Hip balls were 28 mm in diameter. The mean body mass index was 21.3 ± 2.8 kg/m2 . The mean abduction angle of the socket was 44.1 ± 6.2 (range, 29.1-53.8) degrees. The respective mean amount of annual PE wear from first to eighth year was as follows: 0.263 ± 0.152 (range, 0.08 to 0.553); 0.023 ± 0.166 (-0.317 to 0.433); 0.029 ± 0.143 (-0.195 to 0.25); 0.011 ± 0.156 (-0.258 to 0.354); 0.007 ± 0.111 (-0.256 to 0.203); 0.044 ± 0.095 (-0.158 to 0.25); -0.0166 ± 0.142 (-0.318 to 0.199); and 0.070 ± 0.126 (-0.086 to 0.376). The mean annual penetration was 0.022 mm. Conclusion: Highly cross-linked PE has a low linear penetration rate in young Chinese patients. There was no osteolysis or radiological loosening. Intermediate–to–long-term results are promising.
DescriptionConference Theme: Defying the Aging Spine
Concurrent Free Papers 9: Hips and Knees II
Persistent Identifierhttp://hdl.handle.net/10722/204338

 

DC FieldValueLanguage
dc.contributor.authorCheung, AYLen_US
dc.contributor.authorYan, CHen_US
dc.contributor.authorChan, PKen_US
dc.contributor.authorNg, FYen_US
dc.contributor.authorChiu, PKYen_US
dc.date.accessioned2014-09-19T22:41:16Z-
dc.date.available2014-09-19T22:41:16Z-
dc.date.issued2013en_US
dc.identifier.citationThe 33rd Annual Congress of the Hong Kong Orthopaedic Association (HKOA), Hong Kong, China, 23-24 November 2013. In the Abstracts of the 33rd Annual Congress of the Hong Kong Orthopaedic Association (HKOA), 2013, p. 79, abstract no. 9.9en_US
dc.identifier.urihttp://hdl.handle.net/10722/204338-
dc.descriptionConference Theme: Defying the Aging Spine-
dc.descriptionConcurrent Free Papers 9: Hips and Knees II-
dc.description.abstractIntroduction: The study aimed to examine the clinical outcomes and linear penetration rate of highly cross-linked polyethylene (PE) liner in young patients aged ≤ 40 years with total hip arthroplasty (THA). Methods: A retrospective review of primary THAs using marathon highly cross-linked PE liner and Duraloc cementless acetabular socket (DePuy, US) was performed. Two-dimensional wear was measured using PolyWare software on annual radiographs. Results: There were 18 THAs in 14 (7 female and 7 male) patients; 9 were on right and 9 were left THAs. Their mean (± standard deviation) age at operation was 33.7 ± 2.7 (range, 29-38) years. All patients had at least 8 years of follow-up. All articulations were of the metal-on-PE type. Hip balls were 28 mm in diameter. The mean body mass index was 21.3 ± 2.8 kg/m2 . The mean abduction angle of the socket was 44.1 ± 6.2 (range, 29.1-53.8) degrees. The respective mean amount of annual PE wear from first to eighth year was as follows: 0.263 ± 0.152 (range, 0.08 to 0.553); 0.023 ± 0.166 (-0.317 to 0.433); 0.029 ± 0.143 (-0.195 to 0.25); 0.011 ± 0.156 (-0.258 to 0.354); 0.007 ± 0.111 (-0.256 to 0.203); 0.044 ± 0.095 (-0.158 to 0.25); -0.0166 ± 0.142 (-0.318 to 0.199); and 0.070 ± 0.126 (-0.086 to 0.376). The mean annual penetration was 0.022 mm. Conclusion: Highly cross-linked PE has a low linear penetration rate in young Chinese patients. There was no osteolysis or radiological loosening. Intermediate–to–long-term results are promising.-
dc.languageengen_US
dc.publisherHong Kong Academy of Medicine Press.-
dc.relation.ispartofAnnual Congress of the Hong Kong Orthopaedic Association (HKOA)en_US
dc.rightsAnnual Congress of the Hong Kong Orthopaedic Association (HKOA). Copyright © Hong Kong Academy of Medicine Press.-
dc.titleLinear Penetration of Highly Cross-linked Polyethylene in Total Hip Arthroplasty for Chinese Patients Aged 40 Years or Belowen_US
dc.typeConference_Paperen_US
dc.identifier.emailYan, CH: yanchoi@hku.hken_US
dc.identifier.emailChan, PK: cpk464@hku.hken_US
dc.identifier.emailNg, FY: fyng@hkucc.hku.hken_US
dc.identifier.emailChiu, PKY: pkychiu@hkucc.hku.hken_US
dc.identifier.authorityYan, CH=rp00303en_US
dc.identifier.authorityChiu, PKY=rp00379en_US
dc.identifier.hkuros235785en_US
dc.identifier.hkuros240369-
dc.identifier.spage79, abstract no. 9.9en_US
dc.identifier.epage79, abstract no. 9.9en_US
dc.publisher.placeHong Kong, China-

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