| JaLCDOI | 10.18926/AMO/30721 |
|---|---|
| FullText URL | fulltext.pdf |
| Author | Inoue, Atsushi| Asaumi, Koji| Endo, Hirosuke| Fujiwara, Kazuo| Mitani, Shigeru| Ozaki, Toshifumi| |
| Abstract | The present retrospective study assessed radiographs to determine socket wear in total hip arthroplasty (THA) with 22-mm zirconia or COP (Cobalt-Chrome alloy rich in Cobalt and Phosphorous) heads, and in cemented stems at more than 10 years after operation. Sockets of ultra high molecular weight polyethylene were used in each of two THA groups (13 hips each) in a clinical trial in our hospital between 1989 and 1990. Three observers carried out masked assessments of the radiographs. Upon fi nal examination, there was no remarkable loosening in the zirconia or COP group, and no case had required revision surgery as of 2005. There was a statistically signifi cant diff erence between the 2 groups in average annual linear wear, at 0.093 mm/year and 0.046 mm/year in the zirconia and COP groups, respectively. Volume wear and average annual volume wear were also signifi cantly greater in the zirconia group despite its superior mechanical strength and toughness in vitro. Our present fi ndings do not confi rm early expectations of lower wear in long-term results of 22-mm zirconia femoral heads used in THA. |
| Keywords | total hip arthroplasty zirconia head COP head polyethylene wear |
| Amo Type | Original Article |
| Published Date | 2006-12 |
| Publication Title | Acta Medica Okayama |
| Volume | volume60 |
| Issue | issue6 |
| Publisher | Okayama University Medical School |
| Start Page | 311 |
| End Page | 318 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | 英語 |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 17189974 |
| Web of Science KeyUT | 000243019000002 |
| Author | Tanaka, Masato| Sugimoto, Yoshihisa| Misawa, Haruo| Takahata, Tomohiro| Ozaki, Toshifumi| |
|---|---|
| Published Date | 2010-04-01 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume122 |
| Issue | issue1 |
| Content Type | Journal Article |
| Author | Mimura, Hidefumi| Fujiwara, Hiroyasu| Hiraki, Takao| Gobara, Hideo| Shibamoto, Kentaro| Kimata, Yoshihiro| Ozaki, Toshifumi| Sasaki, Satoru| Kanazawa, Susumu| |
|---|---|
| Published Date | 2010-04-01 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume122 |
| Issue | issue1 |
| Content Type | Journal Article |
| Author | 尾﨑 敏文| |
|---|---|
| Published Date | 2006-01-04 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume117 |
| Issue | issue3 |
| Content Type | Journal Article |
| Author | Kunisada, Toshiyuki| Ozaki, Toshifumi| |
|---|---|
| Published Date | 2008-05-01 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume120 |
| Issue | issue1 |
| Content Type | Journal Article |
| FullText URL | K000901.pdf |
|---|---|
| Author | Ozaki, Toshifumi| |
| Published Date | 1991-03-28 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第901号 |
| Granted Date | 1991-03-28 |
| Thesis Type | Doctor of Philosophy in Medical Science |
| Grantor | 岡山大学 |
| language | 日本語 |
