title: Locked volar distal radioulnar joint dislocation.
abstract: BACKGROUND
  Volar dislocation of the distal radioulnar joint is a rare injury which is commonly missed in the emergency departments. A thorough review of literature showed very few reported cases and the cause for irreducibility varied in different cases, Lack of suspicion and improper X-ray can delay the diagnosis.
  
  
  METHODS
  Our article discusses a case 40 year old construction worker, who presented to the Emergency with work-related injury, complaining of left wrist pain, deformity and inability to rotate his forearm. X-rays revealed a volar dislocation of distal ulna which was reducible after manipulation under General Anesthesia (GA). The joint was stable after the reduction.
  
  
  CONCLUSIONS
  Isolated dislocation of the distal radioulnar joint can be either volar or dorsal, although dorsal dislocation is more common. The distal radioulnar articulation plays an important role in the rotational movement of the forearm. It allows pronation and supination which are essential for the function of the upper limb. Pronator Quadratus muscle spasm is an important blockade to reduction and was preventing reduction in this case.
  
  
  METHODS
  The work has been reported in line with the CARE criteria [9].
  
  
  CONCLUSIONS
  Volar locked dislocation of Distal Radio ulnar joint is a rare injury. High degree of clinical suspicion and proper X-ray is required for prompt detection. The importance of this case is to raise the awareness among physicians in treating these kind of injuries by careful assessment of the patient and radiographs, and to consider pronator quadratus as an important cause for the blockade to reduction.
authors.affiliation: Orthopedic Department, Hamad General Hospital, Hamad Medical Corporation, Doha, Qatar. Electronic address: Fadi.bouri@gmail.com.
authors.forename: Fadi
authors.initials: F
authors.lastname: Bouri
authors.affiliation: Orthopedic Department, Hamad General Hospital, Hamad Medical Corporation, Doha, Qatar. Electronic address: Drfuad14@gmail.com.
authors.forename: Mazhar
authors.initials: M
authors.lastname: Fuad
authors.affiliation: Orthopedic Department, Hamad General Hospital, Hamad Medical Corporation, Doha, Qatar. Electronic address: Ayman2882@hotmail.com.
authors.forename: Ayman
authors.initials: A
authors.lastname: Elsayed Abdolenour
keywords: Case report; DRUJ; Methods; Pronator quadratus; TFCC; Volar dislocation