Pellegrini–Stieda ossification can also involve the posterior attachment of the MPFL

Academic Article


  • Purpose To evaluate for development of Pellegrini–Stieda (PS)-type ossification following injury to the posterior attachment of the medial patellofemoral ligament (MPFL). Materials and methods This retrospective study evaluated 27 patients with acute knee injury with initial radiographs, magnetic resonance imaging within 1 week of injury, and follow-up radiographs assessing for development of PS. Results Of the 27 patients who developed PS ossification, 7 patients (25.9%) had isolated MPFL injury with the ossification slightly more proximal than the traditional PS. Conclusion Isolated injury to the posterior MPFL also leads to PS ossification, which is slightly superior in location to the traditional PS.
  • Published In

  • Clinical Imaging  Journal
  • Digital Object Identifier (doi)

    Pubmed Id

  • 23936392
  • Author List

  • McArthur TA; Pitt MJ; Garth WP; Narducci CA
  • Start Page

  • 1014
  • End Page

  • 1017
  • Volume

  • 40
  • Issue

  • 5