title: Treatment of Distal Radius Fracture Nonunion With Posterior Interosseous Bone Flap.
abstract: BACKGROUND
  Nonunion of distal radius fractures is disabling. Treatment is difficult and the results are not predictable. However, posterior interosseous bone flap (PIBF) has been successful in treating forearm nonunion.
  
  
  OBJECTIVE
  To treat distal radius fracture nonunion with PIBF as a new procedure.
  
  
  METHODS
  This prospective non-randomized cohort study was performed at two hospitals in Tehran between January 2011 and September 2015. PIBFs were applied in nine patients (10 nonunions) with a mean age of 55 years. Union success rate, grip strength, wrist range of motion, and forearm rotation were then evaluated.
  
  
  RESULTS
  Although four of the patients had a history of infection, all participants achieved fracture union at a mean time of 3.8 months. Grip strength improved by 12.4 kg. There was also 36° improvement in wrist flexion, 20° improvement in wrist extension, 60° improvement in forearm supination, and 46° improvement in forearm pronation. The range of motion and grip strength improvements were significant.
  
  
  CONCLUSIONS
  Pedicled PIBF is a new option for treating distal radius fracture nonunion. The results are predictable in achieving union and good function, and this technique can be successfully used in cases with extensive soft-tissue damage or infection.
authors.affiliation: Department of Orthopaedic and Trauma Surgery, Besat Hospital, Hamadan University of Medical Sciences, Hamadan, IR Iran.
authors.forename: Hossein
authors.initials: H
authors.lastname: Saremi
authors.affiliation: Department of Orthopaedic and Trauma Surgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, IR Iran; Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran, IR Iran.
authors.forename: Reza
authors.initials: R
authors.lastname: Shahryar-Kamrani
authors.affiliation: Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran, IR Iran.
authors.forename: Bahareh
authors.initials: B
authors.lastname: Ghane
authors.affiliation: Department of Orthopaedic and Trauma Surgery, Besat Hospital, Hamadan University of Medical Sciences, Hamadan, IR Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Yavarikia
keywords: Distal Radius Fracture; Nonunion; Posterior Interosseous Flap; Treatment