title: Infrapatellar Fat Pad Para-Articular Osteochondroma: A Ten-Year Follow-up and Review.
abstract: BACKGROUND
  Para-articular masses are not clear enough in terms of their etiology and nomenclature. Although surgical removal of the mass is the preferred treatment, long term follow-up after surgical treatment has not been reported yet. The current study presents a patient with the osteo-cartilaginous mass of infrapatellar region, diagnosed after a trauma. This case has the longest follow-up period in the literature.
  
  
  METHODS
  A 52-year-old female patient referred after falling down on her right knee. Lateral radiographs of the knee revealed a mass in the infrapatellar area. The case was treated surgically by total excision of the mass. The mass was extra-capsular with lobular and irregular shape. After mass removal the clinical course was uneventful and at the 10-year follow-up, no signs of recurrence were evident clinically or radiologically.
  
  
  CONCLUSIONS
  Tumor-like lesions within the infrapatellar fat pad should remind the para-articular osteochondroma. Although its etiology has not yet been elicited, operative removal of the mass is the preferred treatment of choice and also curative in long-term follow-up.
authors.affiliation: Department of Orthopaedics and Traumatology, Haydarpasa Numune Education and Research Hospital, Istanbul, Turkey.
authors.forename: Hasan
authors.initials: H
authors.lastname: Bombaci
authors.affiliation: Department of Orthopaedics and Traumatology, Igdir State Hospital, Igdir, Turkey.
authors.forename: Emre
authors.initials: E
authors.lastname: Bilgin
keywords: Chondroma; Infrapatellar; Knee; Para-Articular Osteochondroma