EURORAD ESR

Case 15501

Lunate dislocation : a serious injury not to be missed

Author(s)
Kadish Lucien K., Touil Najwa, Kacimi Omar, Chikhaoui Nabil

Hopital IBN Rochd; Casablanca, Morocco; Email:kadishkayij@gmail.com
 
Patient
male, 28 year(s)
 
 
  • Figure 1
    Normal anatomy of the wrist
     

    Normal PA wrist x-rays showing distal radius and distal ulna, carpal bones and Gilula's arcs.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT; Procedure: Computer Applications-3D; Special Focus: Trauma;

    Normal lateral wrist radiograph showing the alignment of distal radius, lunate, capitate and 3rd metacarpal bones.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT; Procedure: Computer Applications-3D; Special Focus: Trauma;

    Sagittal wrist CT shows normal alignment of distal radius, lunate, capitate and 3rd metacarpal bones.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT; Procedure: Computer Applications-3D; Special Focus: Trauma;
     
     
  • Figure 2
    Fracture dislocation of carpal bones
     

    Sagittal CT shows volar lunate dislocation.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT; Procedure: Computer Applications-3D; Special Focus: Trauma;

    Sagittal CT shows also volar dislocation of the triquetrum.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT; Procedure: Computer Applications-3D; Special Focus: Trauma;

    Axial CT: Lunate and Triquetrum are both located in front of radius and ulna.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT; Procedure: Computer Applications-3D; Special Focus: Trauma;

    Coronal CT shows fracture of the scaphoid bone. The lunate and triquetrum that are dislocated are no longer seen on the 1st row carpal.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT; Procedure: Computer Applications-3D; Special Focus: Trauma;

    VR image depicts clearly an anterosuperior displacement of both the lunate and triquetrum bones. The first (blue) and the second (red) arcs are disrupted.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT; Procedure: Computer Applications-3D; Special Focus: Trauma;
     
     
Normal PA wrist x-rays showing distal radius and distal ulna, carpal bones and Gilula's arcs.
 
Normal lateral wrist radiograph showing the alignment of distal radius, lunate, capitate and 3rd metacarpal bones.
 
Sagittal wrist CT shows normal alignment of distal radius, lunate, capitate and 3rd metacarpal bones.
 
Sagittal CT shows volar lunate dislocation.
 
Sagittal CT shows also volar dislocation of the triquetrum.
 
Axial CT: Lunate and Triquetrum are both located in front of radius and ulna.
 
Coronal CT shows fracture of the scaphoid bone. The lunate and triquetrum that are dislocated are no longer seen on the 1st row carpal.
 
VR image depicts clearly an anterosuperior displacement of both the lunate and triquetrum bones. The first (blue) and the second (red) arcs are disrupted.
 
 
 
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