Impending Trunnion Failure: An Uncommon Radiographic Presentation of Total Hip Arthroplasty Failure

Emma Baker, Cristy French, Pamela Brian, Jonelle Thomas, Charles M. Davis

Research output: Contribution to journalArticlepeer-review

Abstract

Trunnionosis is emerging as an early mode of failure in conventional metal-on-polyethylene total hip arthroplasty. It is defined as wear or corrosion at the trunnion, the taper at the femoral head-neck interface. Trunnion wear can result in a variety of negative sequelae and, in severe cases, necessitate revision arthroplasty. We describe a 64-year-old man with a metal-on-polyethylene total hip arthroplasty who presented with a sensation of clunking in the hip. Initial imaging and laboratory studies were inconclusive, and the decision was made to monitor. Two years later, trunnion wear was detected on radiographs, presenting as an abnormal alignment of the femoral neck relative to the femoral head. Several case reports and series describe catastrophic total hip arthroplasty failure due to trunnionosis. However, few describe the radiographic signs of wear at the trunnion before gross failure. This early presentation is important to recognize to minimize patient morbidity and aid surgical planning.

Original languageEnglish (US)
Pages (from-to)230-234
Number of pages5
JournalArthroplasty Today
Volume7
DOIs
StatePublished - Feb 2021

All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine

Fingerprint Dive into the research topics of 'Impending Trunnion Failure: An Uncommon Radiographic Presentation of Total Hip Arthroplasty Failure'. Together they form a unique fingerprint.

Cite this