Analysis and Results of Dissociation of the Polyethylene Liner in the Harris-Galante I Acetabular Component

Saito, Shu; Ryu, Junnosuke; Seki, Masaaki; Ishii, Teruhisa; Saigo, Kaichiro; Mori, Sei

doi:10.1016/j.arth.2007.06.004

Cited by 28 publications

(19 citation statements)

References 12 publications

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“…This laboratory finding was historically supported by examining clinical failures of first- generation locking mechanisms in the early Harris Galante 1 (Zimmer) cup [16,19]. The relatively fragile locking tines and liner-cup mismatch of the Harris Galante cup led to an unusually high number of failures not seen in other designs.…”

Section: Discussionmentioning

confidence: 94%

“…The Australian and American Joint Replacement Registries have reported similar survivorship (Table 1). Although the potential for a catastrophic acetabular locking mechanism and liner disassociation failure exists in all modular acetabular designs, the literature suggests that only the current Pinnacle design and the historic Harris Galante (Zimmer, Warsaw, IN, USA) 1 and 2 cups are at greater risk for this unusual complication [2,16,19].…”

Section: Introductionmentioning

confidence: 99%

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Polyethylene Liner Dissociation Is a Complication of the DePuy Pinnacle Cup: A Report of 23 Cases

Yun¹,

Koli²,

Moreland³

et al. 2016

Clinical Orthopaedics &Amp; Related Research

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Polyethylene Liner Dissociation Is a Complication of the DePuy Pinnacle Cup: A Report of 23 Cases

Yun¹,

Koli²,

Moreland³

et al. 2016

Clinical Orthopaedics &Amp; Related Research

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“…7,9,10,[13][14][15] In addition, clinical reports of fatigue fracture of the liner identified PE thickness, particularly at the rim, as a possible cause. 16,17 Possible cup deformation during press-fit implantation of thinner cups could further impact clinical performance.…”

mentioning

confidence: 99%

Biomechanical modeling of acetabular component polyethylene stresses, fracture risk, and wear rate following press‐fit implantation

Ong

Rundell

Liepins

et al. 2009

Journal Orthopaedic Research

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Press-fit implantation may result in acetabular component deformation between the ischial-ilial columns (''pinching''). The biomechanical and clinical consequences of liner pinching due to press-fit implantation have not been well studied. We compared the effects of pinching on the polyethylene fracture risk, potential wear rate, and stresses for two different thickness liners using computational methods. Line-to-line (''no pinch'') reaming and 2 mm underreaming press fit (''pinch'') conditions were examined for Trident cups with X3 TM polyethylene liner wall thicknesses of 5.9 mm (36E) and 3.8 mm (40E). Press-fit cup deformations were measured from a foam block configuration. A hybrid material model, calibrated to experimentally determined stress-strain behavior of sequentially annealed polyethylene, was applied to the computational model. Molecular chain stretch did not exceed the fracture threshold in any cases. Nominal shell pinch of 0.28 mm was estimated to increase the volumetric wear rate by 70% for both cups and peak contact stresses by 140 and 170% for the 5.9 and 3.8 mm-thick liners, respectively. Although pinching increases liner stresses, polyethylene fracture is highly unlikely, and the volumetric wear rates are likely to be low compared to conventional polyethylene. ß

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“…Dissociation of the polyethylene liner and metal cup is frequently described [1,4,13,16,17] but typically is immediately recognized. Dissociation can occur if the surgeon does not correctly lock the liner into the cup, for example, owing to interposition of soft tissue.…”

Section: Discussionmentioning

confidence: 99%

Case Report: Painless Chronic Liner Dissociation of a Total Hip Arthroplasty

Nellensteijn

Jong³

2013

Clinical Orthopaedics &Amp; Related Research

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Background Dislocation or liner dissociation of a total hip prosthesis usually results in pain and discomfort. Although several reports describe chronic dislocation and its treatment, chronic liner dissociation is an unreported complication. Case Description We report an unrecognized dissociation and displacement of the liner of a total hip prosthesis after revision THA. The patient had virtually no pain or functional restrictions. The patient's only complaint was pain on the contralateral side, associated with a leg-length discrepancy. Since the patient had no complaints relative to the liner dissociation we elected not to pursue further treatment. The contralateral pain was treated successfully with a shoe lift. Literature Review Chronic dislocation of a THA is a rare complication and we found reports of only seven cases in the literature. We found no reports of chronic liner dissociation. Clinical Relevance Orthopaedic surgeons should be aware of the possibility of this rare complication. Our case and the literature suggest treatment can be nonsurgical or surgical.

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Analysis and Results of Dissociation of the Polyethylene Liner in the Harris-Galante I Acetabular Component

Cited by 28 publications

References 12 publications

Polyethylene Liner Dissociation Is a Complication of the DePuy Pinnacle Cup: A Report of 23 Cases

Polyethylene Liner Dissociation Is a Complication of the DePuy Pinnacle Cup: A Report of 23 Cases

Biomechanical modeling of acetabular component polyethylene stresses, fracture risk, and wear rate following press‐fit implantation

Case Report: Painless Chronic Liner Dissociation of a Total Hip Arthroplasty

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