EURORAD ESR

Case 9612

Scaphotrapeziotrapezoidal (STT) osteoarthritis

Author(s)
Evangelos Perdikakis, Ioannis Petkidis, Theodoros Ntitsias

412 General Military Hospital,
Department of Radiology
 
Patient
male, 53 year(s)
 
 
  • Figure 1
    Radiograph

    The plain radiograph shows severe joint space narrowing in the STT joint and subchondral sclerosis of the articulating bones (area in dashed line).

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: Plain radiographic studies; Procedure: Diagnostic procedure; Special Focus: Pathology;
     
     
  • Figure 2
    Ultrasonographic examination
     

    Scaphotrapezoidal joint: The longitudinal US image shows irregularity of the articulating bones (arrows) and accompanying synovial reaction (asterisks).

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: Ultrasound; Procedure: Diagnostic procedure; Special Focus: Pathology;

    Scaphotrapezoidal joint: The longitudinal Colour Doppler US image demonstrates increased vascularity in keeping with active synovitis (arrows). Blue arrow shows a blood vessel.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: Ultrasound-Colour Doppler; Procedure: Diagnostic procedure; Special Focus: Pathology;
     
     
  • Figure 3
    MRI examination
     

    The coronal STIR MR image shows midcarpal joint effusion (asterisks) and bone marrow oedema in the trapezoid bone (arrow).

     
    Area of Interest: Musculoskeletal system; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Pathology;

    The coronal STIR MR image shows bone marrow oedema in the scaphoid pole-trapezium(white arrows). Note bone marrow oedema and osteochondral defect in the capitate bone (yellow arrow).

     
    Area of Interest: Musculoskeletal system; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Pathology;

    The coronal gradient recalled MR image demonstrates severe joint osteoarthritic changes with near complete joint fusion (arrea in dashed line). Note the associated osteocondral defect in the capitate bone (yellow arrow).

     
    Area of Interest: Musculoskeletal system; Imaging Technique: MR; Procedure: Diagnostic procedure; Special Focus: Pathology;
     
     
  • Figure 4
    MDCT examination
     

    The axial MDCT image shows severe osteoarthritic changes in the affected joint (arrow). Note joint space narrowing, subchondral bone irregularity and sclerosis, subarticular cyst and osteophyte formation.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Pathology;

    The axial MDCT image of the affected and normal joints are demonstrated for comparison (long arrow).

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Pathology;

    a) The coronal MPR images are demonstrated for comparison. b-c) The coronal MPR images show the osteoarthritic changes (in dashed line). Note the osteochondral defect in the capitate bone (yellow arrow in a,b).

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: CT; Procedure: Diagnostic procedure; Special Focus: Pathology;

    VRT demonstration

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: Image manipulation / Reconstruction; Procedure: Diagnostic procedure; Special Focus: Pathology;

    VRT demonstration

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: Image manipulation / Reconstruction; Procedure: Diagnostic procedure; Special Focus: Pathology;
     
     
  • Figure 5
    Correlation of imaging findings

    STT osteoarthritis. a) Radiograph, b)Ultrasound, c)MRI, d)MPR MDCT, e) VRT MDCT. Correlative presentation of imaging findings.

     
    Area of Interest: Musculoskeletal joint; Imaging Technique: Image manipulation / Reconstruction; Procedure: Comparative studies; Special Focus: Pathology;
     
     
The plain radiograph shows severe joint space narrowing in the STT joint and subchondral sclerosis of the articulating bones (area in dashed line).
 
Scaphotrapezoidal joint: The longitudinal US image shows irregularity of the articulating bones (arrows) and accompanying synovial reaction (asterisks).
 
Scaphotrapezoidal joint: The longitudinal Colour Doppler US image demonstrates increased vascularity in keeping with active synovitis (arrows). Blue arrow shows a blood vessel.
 
The coronal STIR MR image shows midcarpal joint effusion (asterisks) and bone marrow oedema in the trapezoid bone (arrow).
 
The coronal STIR MR image shows bone marrow oedema in the scaphoid pole-trapezium(white arrows). Note bone marrow oedema and osteochondral defect in the capitate bone (yellow arrow).
 
The coronal gradient recalled MR image demonstrates severe joint osteoarthritic changes with near complete joint fusion (arrea in dashed line). Note the associated osteocondral defect in the capitate bone (yellow arrow).
 
The axial MDCT image shows severe osteoarthritic changes in the affected joint (arrow). Note joint space narrowing, subchondral bone irregularity and sclerosis, subarticular cyst and osteophyte formation.
 
The axial MDCT image of the affected and normal joints are demonstrated for comparison (long arrow).
 
a) The coronal MPR images are demonstrated for comparison. b-c) The coronal MPR images show the osteoarthritic changes (in dashed line). Note the osteochondral defect in the capitate bone (yellow arrow in a,b).
 
VRT demonstration
 
VRT demonstration
 
STT osteoarthritis. a) Radiograph, b)Ultrasound, c)MRI, d)MPR MDCT, e) VRT MDCT. Correlative presentation of imaging findings.
 
 
 
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