Midterm Results of Delta Ceramic-on-Ceramic Total Hip Arthroplasty

J Arthroplasty. 2015 Sep;30(9 Suppl):110-5. doi: 10.1016/j.arth.2015.02.047. Epub 2015 Jun 3.

Abstract

This study reports mid-term results of Delta ceramic on ceramic (COC) in total hip arthroplasty (THA). Subjects received Delta COC THA in a prospective multi-center study with either 28 mm (n=177) or 36 mm (n=168) articulations. Annual clinical and radiographic evaluations were performed, and patients were asked about hip noises. At mean 5.3-year follow-up there were 3 (0.9%) post-operative liner fractures. Nine revisions were performed (2 liner fracture, 4 stem loosening, 3 deep infection). Kaplan-Meier survivorship at 6 years was 96.9% (94.0-98.4). Twenty-six (7.5%) subjects reported squeaking, of whom none were revised. One (0.3%) subject could reproduce a sound in clinic. More patients reported squeaking with a 36 mm bearing (28 mm: 7/177, 36 mm: 19/168, P=0.013).

Keywords: bearing surfaces; ceramic; outcome; total hip arthroplasty; total hip replacement.

Publication types

  • Multicenter Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Arthroplasty, Replacement, Hip / adverse effects*
  • Arthroplasty, Replacement, Hip / methods*
  • Ceramics / chemistry*
  • Female
  • Hip Prosthesis*
  • Humans
  • Kaplan-Meier Estimate
  • Male
  • Middle Aged
  • Noise*
  • Patient Satisfaction
  • Postoperative Period
  • Prospective Studies
  • Prosthesis Design
  • Reproducibility of Results
  • Treatment Outcome