Polyethylene wear and periprosthetic osteolysis in metal-backed acetabular components with cylindrical liners

Perez, Rafael E.; Rodríguez, José A.; Deshmukh, R. G.; Ranawat, Chitranjan S.

doi:10.1016/s0883-5403(98)90068-7

Cited by 37 publications

(15 citation statements)

References 18 publications

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“…The subsequent use of cups B and C showed a good survivorship with no radiographic evidence of backside wear or significant osteolysis. Previous reports have documented a high rate of marked osteolysis with uncemented metal-backed acetabular cups [10,11], although this was not the authors experience in this study. Liner wear was seen on radiographs, although not to such a high extent as described previously [11].…”

Section: Discussioncontrasting

confidence: 59%

The Bimetric cementless total hip replacement: 7–18 year follow-up assessing the influence of acetabular design on survivorship

Russell

Ghassemi

Dorrell

et al. 2008

International Orthopaedics (SICOT)

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The purpose of this study was to evaluate the mid-to long-term survivorship of Bimetric cementless total hip replacement and assess how it is affected by the acetabular design. This was a retrospective analysis of 127 Bimetric cementless total hip replacements in 110 patients with a follow-up of 7-18 years. A single design stem and three different cementless metal-backed acetabular designs were used. Patients were assessed clinically using the Harris hip score and radiologically by independent review of current hip radiographs. There was only one case of aseptic loosening of the femoral stem. The earliest acetabular design showed a high failure rate whilst the latter two designs showed a 96% survivorship at a mean of 9.5 years. We conclude that a combination of the bimetric stem with either of the latter acetabular cup designs has a good mid-to long-term performance.Résumé l'étude de l'évaluation à moyen ou à long terme de la survie d'une prothèse sans cimentde type Bimétric. il s'agit d'une étude prospective de 127 prothèses totales de hanche chez110 patients avec un suivi moyen de 7 à 18 ans. Un seul dessin de tige fémorale et troisdessins différents de cupule métal back sans ciment ont été utilisés. Les patients ont étéévalués sur le plan clinique (score de Harris) et sur le plan radiologique. Un seul cas de descellement aseptique de tige fémorale a été retrouvé. Sur les troismodèles de cupule, le premier modèle montre un taux d'échec très important alors que les deuxderniers modèles ont un taux de survie de 96% à 9,5 ans de recul. En conclusion, nous pouvons affirmer que la combinaison d'une tige de type bimétric associéeaux modèles acétabulaires les plus tardifs ont permis un bon résultat moyen à long terme.

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Section: Discussioncontrasting

confidence: 59%

The Bimetric cementless total hip replacement: 7–18 year follow-up assessing the influence of acetabular design on survivorship

Russell

Ghassemi

Dorrell

et al. 2008

International Orthopaedics (SICOT)

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“…Data from several clinical studies have suggested that high bearing surface polyethylene wear rate and total wear are risk factors in the development of osteolysis and aseptic loosening after total hip arthroplasty (THA) [6,2 1, 23,24]. These findings are consistent among studies of various implant designs and using different wear measurement techniques [7,20].…”

Section: Introductionmentioning

confidence: 81%

Polyethylene wear rate and osteolysis: Critical threshold versus continuous dose-response relationship

et al. 2005

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We studied the relationship between polyethylene wear and osteolysis in 230 subjects after cemented Charnley total hip arthroplasty in order to examine the validity of the wear rate threshold concept. Polyethylene wear measured using image analysis (EBRA) software was compared in 1 1 5 subjects with osteolysis versus 115 control subjects that were individually matched for age, sex, and follow up period. Subjects with osteolysis had almost twice the mean annual wear rate versus the controls. The incidence of osteolysis increased in a linear manner with each quintile increase in wear rate throughout the range 0.01-0.54 mm/year. The odds-ratio for osteolysis approximately doubled with each quintile increase in wear rate above the middle quintile (wear rate 0.08-0.1 1 m d year), and decreased at a similar rate with each quintile decrease in wear rate below the middle quintile. Our data suggests that the association of osteolysis with polyethylene wear rate represents a continuous dose-response relationship and does not support the concept of a discrete critical wear rate threshold above which the risk of osteolysis is disproportionately increased.

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“…Implant wear and secondary osteolysis are major causes of THA failure and are of particular concern in young patients undergoing THA because of long lifespans [7,20,26,33,38]. Therefore, alternative bearing surfaces have been introduced to minimize wear particle-induced implant failure.…”

Section: Introductionmentioning

confidence: 99%

“…In general, younger patients have been associated with higher activity levels and increased polyethylene wear [20,33,38]. In addition, the demands that are placed on the implant in younger patients are produced for longer times compared with those for older patients.…”

Section: Introductionmentioning

confidence: 99%

THA with Highly Cross-linked Polyethylene in Patients 50 Years or Younger

Shia¹,

Clohisy²,

Schinsky³

et al. 2009

Clinical Orthopaedics &Amp; Related Research

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Highly cross-linked polyethylene has been associated with low in vitro wear, but also has decreased in vitro ultimate yield strength. We therefore asked whether highly cross-linked polyethylene would result in lower outcome scores, wear, or early failure in a young patient population. Seventy THAs in 64 patients were performed using a highly cross-linked (electron beam-irradiated to 9 Mrads) acetabular liner and a cobalt-chrome femoral head. The average age of the patients at surgery was 41 years (range, 19-50 years). The minimum followup was 2.4 years (average, 4 years; range, 2.4-6.5 years). We recorded demographic and clinical data, including Harris hip score. Polyethylene wear measurements were analyzed with a validated, computer-assisted, edge detection method. The average Harris hip score improved from 53 to 92 at last followup. There was no evidence of acetabular or femoral loss of fixation, subsidence, or loosening. Linear wear was undetectable at this followup interval. No patient experienced catastrophic failure or underwent revision surgery. These data show low polyethylene wear rates and no catastrophic failures at early followup in a young patient cohort.

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Polyethylene wear and periprosthetic osteolysis in metal-backed acetabular components with cylindrical liners

Cited by 37 publications

References 18 publications

The Bimetric cementless total hip replacement: 7–18 year follow-up assessing the influence of acetabular design on survivorship

The Bimetric cementless total hip replacement: 7–18 year follow-up assessing the influence of acetabular design on survivorship

Polyethylene wear rate and osteolysis: Critical threshold versus continuous dose-response relationship

THA with Highly Cross-linked Polyethylene in Patients 50 Years or Younger

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