The jumbo acetabular component for acetabular revision: Curtain Calls and Caveats.

Published

Journal Article (Review)

The 'jumbo' acetabular component is now commonly used in acetabular revision surgery where there is extensive bone loss. It offers high surface contact, permits weight bearing over a large area of the pelvis, the need for bone grafting is reduced and it is usually possible to restore centre of rotation of the hip. Disadvantages of its use include a technique in which bone structure may not be restored, a risk of excessive posterior bone loss during reaming, an obligation to employ screw fixation, limited bone ingrowth with late failure and high hip centre, leading to increased risk of dislocation. Contraindications include unaddressed pelvic dissociation, inability to implant the component with a rim fit, and an inability to achieve screw fixation. Use in acetabulae with < 50% bone stock has also been questioned. Published results have been encouraging in the first decade, with late failures predominantly because of polyethylene wear and aseptic loosening. Dislocation is the most common complication of jumbo acetabular revisions, with an incidence of approximately 10%, and often mandates revision. Based on published results, a hemispherical component with an enhanced porous coating, highly cross-linked polyethylene, and a large femoral head appears to represent the optimum tribology for jumbo acetabular revisions.

Full Text

Duke Authors

Cited Authors

  • Lachiewicz, PF; Watters, TS

Published Date

  • January 2016

Published In

Volume / Issue

  • 98-B / 1 Suppl A

Start / End Page

  • 64 - 67

PubMed ID

  • 26733644

Pubmed Central ID

  • 26733644

Electronic International Standard Serial Number (EISSN)

  • 2049-4408

Digital Object Identifier (DOI)

  • 10.1302/0301-620X.98B1.36139

Language

  • eng

Conference Location

  • England