Posterior Hoffa's fat pad impingement secondary to a thickened infrapatellar plica: a case report and review of the literature

J Radiol Case Rep. 2015 Mar 31;9(3):20-6. doi: 10.3941/jrcr.v9i3.2037. eCollection 2015 Mar.

Abstract

We report a case of posterior hoffitis in a middle-aged woman with no prior history of significant major trauma. Her symptoms of anterior knee pain and limited extension failed conservative measures. Preoperative magnetic resonance imaging demonstrated a significantly thickened infrapatellar plica tethering Hoffa's fat pad in the anterior interval of the knee. Arthroscopic resection of the infrapatellar plica resulted in complete resolution of symptoms within six months following the surgery.

Keywords: Hoffa’s fat pad; Knee; arthroscopy; impingement; infrapatellar plica; magnetic resonance imaging; plica syndrome; posterior hoffitis.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Adipose Tissue / pathology*
  • Adipose Tissue / surgery
  • Arthralgia / etiology
  • Arthroscopy
  • Diagnosis, Differential
  • Female
  • Humans
  • Joint Diseases / etiology
  • Joint Diseases / pathology*
  • Joint Diseases / surgery
  • Knee Joint / pathology*
  • Knee Joint / surgery
  • Magnetic Resonance Imaging
  • Middle Aged
  • Treatment Outcome