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Observations on the direction of wear in Charnley sockets retrieved at revision
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The direction of wear in the acetabular socket has implications for the amount of debris that is generated during movement, for the magnitude of eccentric loading and for the incidence of impingement of the neck. We observed the direction of penetration with respect to a global co-ordinate system in 84 acetabular components retrieved at reoperation. The mean direction of wear relative to the open face of the sockets was found to be 37deg with a range from Oo to 87o. For those values determined using the inclination of the socket on the prerevision radiograph, the mean direction of penetration ...
Related newspaper, magazine, and trade journal articles from HighBeam Research
(Including press releases, facts, information, and biographies)
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Wear of polyethylene in artificial hip joints: Superolateral wear of the acetabulum
; ...In prostheses showing high wear, the penetration of the femoral head into...of the force vector, and penetration due to wear which is superior and slightly...clinical trend that higher penetration and wear are associated with more...
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Wear of the cup in the Charnley LFA in the young patient
; ...the rate of wear, measured radiologically as penetration, have been identified...measurement of wear as previously...mean rate of penetration of the cup for...polyethylene.7 High-wear group. This...had a rate of penetration of 0.2 mm/year...
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Superolateral wear of the acetabulum
; ...joint surface there can be no wear. Penetration therefore must be tangential...instantaneous direction of penetration due to wear is perpendicular to the instantaneous...leads to the conclusion that penetration due to wear, at right angles to this...
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The creep and wear of highly cross-linked polyethylene: A THREE-YEAR RANDOMISED, CONTROLLED TRIAL USING RADIOSTEREOMETRIC ANALYSIS
; ...year virtually all penetration is due to wear. Highly cross-linked...slower phase of penetration begins which is dominated by wear, A considerable...creep-dominated penetration slows and when wear-dominated penetration begins. It is important...
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HIGH WEAR V LOW WEAR OF THE CUP IN CHARNLEY LFA IN PATIENTS UNDER THE AGE OF 51 YEARS
; ...Charnley low-friction arthroplasties 190 (13.2%) showed low wear while 149 (10.4%) showed high wear. We used Chi square test to assess the significance. The characteristics of the low wear group were: female gender (p=0.042) Rheumatoid arthritis...of the cup (p=0.07) approached signilicance. In the high ...
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POLYETHYLENE WEAR IN EXPLANTED UNICOMPARTMENTAL ARTHROPLASTIES
; ...The volume of the femoral penetration into the polyethylene was...in two ways to separate penetration related to polyethylene deformation from penetration related to polyethylene wear. The micrometric device...implanted. Polyethylene wear was calculated from the...The volumetric femoral ...
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Du Pont to build Lycra's men's stature. (targets men's wear for brand identity campaign)
; ...years ago. We are in the beginning stage of Lycra in men's wear. It is an embryonic market for us to develop, Ibrahim said...American director for Lycra, said that important men's wear areas now are activewear and socks. Long term, we see pants...change from last year. This will drive the growth in men's ...
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HERMS HIGH ON MEN'S WEAR GROWTH; STRONG SALES GAINS PROMPT FRENCH LUXURY HOUSE TO CONSIDER OPENING MEN'S-ONLY RETAIL STORES.
; ...business, which has been growing by leaps and bounds. Men's wear has been a particularly explosive business for the fashion...every year to the point where it almost rivals women's wear, revealed Patrick Thomas, CEO, in an interview last week. Men's wear designer Vronique Nichanian, a petite brunette who ...
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Big chains have big interest in men's wear.
; ...department stores began to pay more attention to the men's wear business, with many of them opening up Mod Shops. And the...appearance. From that point the course of events took men's wear through the Jeans Generation, active sportswear and...when volume retailers stepped in to develop their men's wear ...
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How to use ground-engaging tools without using them up: the right operating techniques can double the life of bucket teeth, moldboards, ripper tips and other wear parts. Here's how to do it right.(Maintenance)
; ...attitude reduces penetration; wears GETs unevenly...cycle times, bottom wear, fuel consumption, and possibly tire wear. A nosedown attitude increases penetration, but also causes excessive wear on the top and inside...forward will increase penetration, but it will also wear ...
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