Finite element prediction of contact pressures in cam-type femoroacetabular impingement with varied alpha angles

Qian Liu, Wanchun Wang, Andrew R. Thoreson, Chunfeng D Zhao, Weihong Zhu, Pengcheng Dou

Research output: Contribution to journalArticle

3 Scopus citations


Three dimensional finite element models of cam-type FAI with alpha angles of 60°, 70°, 80°, and 90° were created to investigate the cartilage contact mechanics in daily activities. Intra-articular cartilage contact pressures during routine daily activities were assessed and cross-compared with a normal control hip. Alpha angles and hip range of motion were found to have a combined influence on the cartilage contact mechanics in hips with cam-type FAI, thereby resulting in abnormally high pressures and driving the cartilage damage. In particular, alpha angles of 80° or greater contribute to substantial pressure increase under certain types of daily activities.

Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalComputer Methods in Biomechanics and Biomedical Engineering
StateAccepted/In press - Aug 19 2016



  • alpha angle
  • contact pressures
  • Femoroacetabular impingement
  • finite element model

ASJC Scopus subject areas

  • Bioengineering
  • Medicine(all)
  • Biomedical Engineering
  • Human-Computer Interaction
  • Computer Science Applications

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