Polyethylene and metal debris generated by non-articulating surfaces of modular acetabular components.

Polyethylene and metal debris generated by non-articulating surfaces of modular acetabular components. Research Abstract Details 

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Polyethylene and metal debris generated by non-articulating surfaces of modular acetabular components. Abstract Text:

O L Huk,M Bansal,F Betts,C M Rimnac,J R Lieberman,M H Huo,E A Salvati,

We report a prospective study of the liner-metal interfaces of modular uncemented acetabular components as sources of debris. We collected the pseudomembrane from the screw-cup junction and the empty screw holes of the metal backing of 19 acetabula after an average implantation of 22 months. Associated osteolytic lesions were separately collected in two cases. The back surfaces of the liners and the screws were examined for damage, and some liners were scanned by electron microscopy. The tissues were studied histologically and by atomic absorption spectrophotometry to measure titanium content. The pseudomembrane from the screw-cup junction contained polyethylene debris in seven specimens and metal debris in ten. The material from empty screw holes was necrotic tissue or dense fibroconnective tissue with a proliferative histiocytic infiltrate and foreign-body giant-cell reaction. It contained polyethylene debris in 14 cases and metal in five. The two acetabular osteolytic lesions also showed a foreign-body giant-cell reaction to particulate debris. The average titanium levels in pseudomembranes from the screw-cup junction and the empty screw holes were 959 micrograms/g (48 to 11,900) and 74 micrograms/g (0.72 to 331) respectively. The tissue from the two lytic lesions showed average titanium levels of 139 and 147 micrograms/g respectively. The back surfaces of the PE liners showed surface deformation, burnishing, and embedded metal debris. All 30 retrieved screws demonstrated fretting at the base of the head and on the proximal shaft. Non-articular modular junctions create new interfaces for the generation of particulate debris, which may cause granulomatous reaction.

Polyethylene and metal debris generated by non-articulating surfaces of modular acetabular components. Publishing Authors By Initials

OL Huk,M Bansal,F Betts,CM Rimnac,JR Lieberman,MH Huo,EA Salvati,

For similar investigative techniques: epidemiologic methods: epidemiologic study characteristics as topic: epidemiologic studies: cohort studies: longitudinal studies: prospective studies research abstracts see: investigative techniques: epidemiologic methods: epidemiologic study characteristics as topic: epidemiologic studies: cohort studies: longitudinal studies: prospective studies research

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Polyethylene and metal debris generated by non-articulating surfaces of modular acetabular components. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: The Journal of bone and joint surgery. British vol

VOLUME: 76

Page Numbers: 568-74

Journal Abbreviation:

ISSN: 0301-620X

DAY: 14

MONTH: Jul

YEAR: 1994

Polyethylene and metal debris generated by non-articulating surfaces of modular acetabular components. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 375355

Polyethylene and metal debris generated by non-articulating surfaces of modular acetabular components. Keywords Mesh Terms:

KEYWORDS: Prospective Studies

MESH TERMS: analysis

Chemical & Substance for Abstract: Polyethylene and metal debris generated by non-articulating surfaces of modular acetabular components. Information

Substance Name: Polyethylenes

Registry Number: 0

Grant and Affiliation Information for Polyethylene and metal debris generated by non-articulating surfaces of modular acetabular components.

AFFILIATION: Hospital for Special Surgery, New York, NY 10021.

Country: ENGLAND

AGENCY: United States NIAMS

GRANT: AR 01876

ACRONYM: AR

MEDLINETA: J Bone Joint Surg Br

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