Comparison of in vivo contact positions for PS and PCR TKA implants using Lowest Point and full-contact techniques

Saikat Pal, Mohamed R. Mahfouz, Richard D. Komistek, Paul J. Rullkoetter

Research output: Contribution to journalArticlepeer-review

Abstract

Evaluation of in vivo tibiofemoral contact following total knee arthroplasty provides valuable feedback to clinicians and researchers. The objective of the present study was to evaluate in vivo contact positions using a combination of fluoroscopy and Finite Element (FE) modelling. Center-of-Pressure (COP) contact locations from FE models were compared to Lowest Point (LP) results. Six P.F.C® Sigma Posterior Stabilised (PS) and 6 P.F.C® Sigma Posterior Cruciate Retraining (PCR) implants were analysed during weight-bearing knee flexion from 0° to 90°. Statistically significant differences were observed between the means of anterior-posterior contact position from the LP and COP methods (α = 0.05).

Original languageEnglish (US)
Pages (from-to)229-246
Number of pages18
JournalInternational Journal of Biomedical Engineering and Technology
Volume5
Issue number2-3
DOIs
StatePublished - Mar 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering

Keywords

  • COP
  • Centre-ofpressure contact
  • FE modelling
  • Full-contact analysis
  • Knee kinematics
  • Lowest point contact
  • TKA
  • Tibiofemoral contact
  • Video fluoroscopy

Fingerprint Dive into the research topics of 'Comparison of in vivo contact positions for PS and PCR TKA implants using Lowest Point and full-contact techniques'. Together they form a unique fingerprint.

Cite this