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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
Title | Linear penetration of highly cross-linked polyethylene in Total Hip Arthroplasty for Chinese Patients aged 40 years or below |
---|---|
Authors | |
Issue Date | 2013 |
Publisher | Hong Kong Academy of Medicine Press. |
Citation | The 33rd Annual Congress of the Hong Kong Orthopaedic Association (HKOA 2013), Hong Kong, China, 23-24 November 2013. In Conference Abstracts, 2013, p. 79, abstract no. 9.9 How to Cite? |
Abstract | Introduction: 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. |
Description | Conference Theme: Defying the Aging Spine Concurrent Free Papers 9: Hips and Knees 2 |
Persistent Identifier | http://hdl.handle.net/10722/204338 |
DC Field | Value | Language |
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dc.contributor.author | Cheung, AYL | en_US |
dc.contributor.author | Yan, CH | en_US |
dc.contributor.author | Chan, PK | en_US |
dc.contributor.author | Ng, FY | en_US |
dc.contributor.author | Chiu, PKY | en_US |
dc.date.accessioned | 2014-09-19T22:41:16Z | - |
dc.date.available | 2014-09-19T22:41:16Z | - |
dc.date.issued | 2013 | en_US |
dc.identifier.citation | The 33rd Annual Congress of the Hong Kong Orthopaedic Association (HKOA 2013), Hong Kong, China, 23-24 November 2013. In Conference Abstracts, 2013, p. 79, abstract no. 9.9 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/204338 | - |
dc.description | Conference Theme: Defying the Aging Spine | - |
dc.description | Concurrent Free Papers 9: Hips and Knees 2 | - |
dc.description.abstract | Introduction: 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.language | eng | en_US |
dc.publisher | Hong Kong Academy of Medicine Press. | - |
dc.relation.ispartof | Annual Congress of the Hong Kong Orthopaedic Association, HKOA 2013 | en_US |
dc.title | Linear penetration of highly cross-linked polyethylene in Total Hip Arthroplasty for Chinese Patients aged 40 years or below | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Yan, CH: yanchoi@hku.hk | en_US |
dc.identifier.email | Chan, PK: cpk464@hku.hk | en_US |
dc.identifier.email | Ng, FY: fyng@hkucc.hku.hk | en_US |
dc.identifier.email | Chiu, PKY: pkychiu@hkucc.hku.hk | en_US |
dc.identifier.authority | Yan, CH=rp00303 | en_US |
dc.identifier.authority | Chiu, PKY=rp00379 | en_US |
dc.identifier.hkuros | 235785 | en_US |
dc.identifier.hkuros | 240369 | - |
dc.identifier.spage | 79, abstract no. 9.9 | en_US |
dc.identifier.epage | 79, abstract no. 9.9 | en_US |
dc.publisher.place | Hong Kong | - |