Abstract:
UNLABELLED:To augment cement-bone bonding, we interposed hydroxyapatite granules at the cement-bone interface (bioactive bone cement technique). Hydroxyapatite granules (2-3 g) were smeared on the bone surface of the acetabulum and femur just before cementing. We used porous hydroxyapatite granules 300 to 500 microm in diameter from 1986 to 1988 (first generation) and granules 100 to 300 microm in diameter from 1989 to 1991 (second generation). We followed 151 patients (222 hips) in the first generation and 170 patients (252 hips) in the second generation. The minimum followup was 15 years (mean, 17.3 years; range, 15-20 years). Radiolucent lines or spaces less than 1 mm were observed in four hips (1.8%) in the first generation and in 15 hips (6.2%) in the second generation. Osteolysis was observed in one hip (0.5%) in the first generation and six hips (1.6%) in the second generation. We observed loosening in two cups (0.8%) in the second generation. The long-term clinical results suggest the interface bioactive bone cement technique combined with our other techniques results in low incidences of radiolucent lines (spaces) and osteolysis, and may increase the longevity of cemented THA. The data suggest the larger hydroxyapatite granules performed better than smaller ones. LEVEL OF EVIDENCE:Level III, therapeutic retrospective cohort series. See the Guidelines for Authors for a complete description of levels of evidence.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Oonishi H,Ohashi H,Oonishi H Jr,Kim SCdoi
10.1007/s11999-007-0057-7subject
Has Abstractpub_date
2008-02-01 00:00:00pages
373-9issue
2eissn
0009-921Xissn
1528-1132journal_volume
466pub_type
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journal_title:Clinical orthopaedics and related research
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journal_title:Clinical orthopaedics and related research
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journal_title:Clinical orthopaedics and related research
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journal_title:Clinical orthopaedics and related research
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journal_title:Clinical orthopaedics and related research
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journal_title:Clinical orthopaedics and related research
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journal_title:Clinical orthopaedics and related research
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journal_title:Clinical orthopaedics and related research
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journal_title:Clinical orthopaedics and related research
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journal_title:Clinical orthopaedics and related research
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journal_title:Clinical orthopaedics and related research
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更新日期:1991-11-01 00:00:00
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journal_title:Clinical orthopaedics and related research
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更新日期:1976-06-01 00:00:00
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journal_title:Clinical orthopaedics and related research
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doi:
更新日期:1990-01-01 00:00:00
abstract::In Greece, despite efforts toward early diagnosis of congenital dislocation of the hip (CDH) during the last 20 years, treatment of 75% of infants so diagnosed has not been begun until they are 2 to 9 months of age, with an average treatment onset age of 4.6 months. Five hundred eighty-seven infants (947 hips) two to ...
journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
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更新日期:1989-09-01 00:00:00
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journal_title:Clinical orthopaedics and related research
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更新日期:1983-11-01 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2012-06-01 00:00:00
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journal_title:Clinical orthopaedics and related research
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doi:10.1097/00003086-197511000-00013
更新日期:1975-11-01 00:00:00
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journal_title:Clinical orthopaedics and related research
pub_type: 杂志文章
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更新日期:1980-03-01 00:00:00