Acute Liner Disassociation of a Pinnacle Acetabular Component

Meško, Jozef

doi:10.1016/j.arth.2008.03.010

Cited by 26 publications

(44 citation statements)

References 8 publications

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“…Two other papers, however, also noted a total of two similar liner disassociations in the absence of these proposed risk factors [9,10]. The authors could not identify mechanisms of causality but noted that retrieval findings showed a compromised locking mechanism.…”

Section: Introductionmentioning

confidence: 84%

“…The frequency with which this complication occurs is unknown, but to our knowledge, there are 16 reported liner failures in four publications [3,5,9,10], and a 2008 public database described a collection of 41 Pinnacle liner disassociations [8,10]. In 2013, the National Joint Registry of England and Wales reported a 0.04% polyethylene liner disassociation rate with a 0.01% liner fracture rate in 35,522 hips with a 97% survivorship of metal-on-polyethylene hips and a 98% survivorship of ceramic-on-polyethylene hips.…”

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: Introductionmentioning

confidence: 84%

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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“…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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“…After a literature search, we reviewed five additional case reports [1,[3][4][5][6] also describing the failure of DePuy Pinnacle (Warsaw, IN, USA) acetabular cup by means of dissociation of the polyethylene liner from the metal back. These studies, as well as Yun and colleagues [8], confirm this complication as a mechanism of failure of the device.…”

mentioning

confidence: 99%