title: Treatment of osteochondral fracture of the trochlea of the PIP joint.
abstract: BACKGROUND
  Osteochondral (OC) fractures of the trochlea of the PIP joint are rare but the treatment of these fractures can be challenging [2, 5, 6, 10]. And the therapeutic guideline is not determined.
  
  
  METHODS
  All of the three cases were male. Two were delayed union with minimal displacement and the other was a fresh displaced fracture. All cases were treated with ORIF using small K-wires. In delayed union cases, bone grafting was added.
  
  
  RESULTS
  Although bone union was obtained in all cases, rotation of the fragment due to the absorption of the grafted bone resulted in deformity of the trochlea in one of the delayed union cases. The functional recovery at the 2-year follow-up was satisfactory in all cases.
  
  
  CONCLUSIONS
  Although OC fracture of the trochlea of PIP joint carry significant fixation implications, successful treatment could be done with ORIF using small K-wire fixation technique.
authors.affiliation: Department of Orthopaedic Surgery, School of Medicine, Gifu University, 1-1 Yanagido, Gifu 501-1194, Japan. yoshiok@cc.gifu-u.ac.jp
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Ohno
authors.forename: Katsuji
authors.initials: K
authors.lastname: Shimizu
mesh_terms: D000293:Adolescent; D000328:Adult; D016025:Bone Transplantation; D001864:Bone Wires; D005383:Finger Injuries / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D005384:Finger Joint; D005593:Fracture Fixation, Internal / Q000379:methods*; D050723:Fractures, Bone / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D006801:Humans; D008297:Male; D011859:Radiography; D014102:Torsion Abnormality / Q000150:complications