Cartilage lesions of the glenohumeral joint: diagnostic effectiveness of multidetector spiral CT arthrography and comparison with arthroscopy.

Lecouvet, Frédéric;Dorzée, Benjamin;Dubuc, Jean-Emile;Vande Berg, Bruno;Malghem, Jacques;et.al.
(2007) European Radiology : journal of the European Congress of Radiology — Vol. 17, n° 7, p. 1763-1771 (2007)

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Authors
  • Lecouvet, FrédéricUCLouvain
    Author
  • Dorzée, BenjaminUCLouvain
    Author
  • Dubuc, Jean-EmileUCLouvain
    Author
  • Vande Berg, BrunoUCLouvain
    Author
  • Jamart, JacquesUCLouvain
    Author
  • Malghem, JacquesUCLouvain
    Author
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Abstract
This study assessed the diagnostic effectiveness of multidetector spiral CT arthrography (MDCTa) in detecting hyaline cartilage abnormalities of the shoulder joint, with correlation to arthroscopy. Shoulder MDCTa images prospectively obtained in 22 consecutive patients (mean age, 50 years; age range, 23-74 years; 12 female, 10 male) were evaluated for glenohumeral cartilage lesions. Two musculoskeletal radiologists independently analysed the cartilage surfaces of the humeral head and of the glenoid fossa in nine anatomical surface areas. Observations of MDCTa were compared to arthroscopic findings. The sensitivity and specificity of MDCTa for grade 2 (substance loss <50%) or higher and grade 3 (substance loss >or=50%) or higher cartilage lesions, the Spearman correlation coefficient between arthrographic and arthroscopic grading, and K statistics for assessing Intra and Interobserver reproducibility were determined. At MDCTa, sensitivities and specificities ranged between 80% and 94% for the detection of grade 2 or higher cartilage lesions, and between 88% and 98% for the detection of grade 3 or higher cartilage lesions. Spearman correlation coefficients between MDCTa and arthroscopic grading of articular surfaces ranged between 0.532 and 0.651. Interobserver agreement was moderate for grading all articular surfaces (kappa = 0.457), but substantial to almost perfect for detecting lesions with substance loss (kappa, 0.618-0.876). In conclusion, MDCTa is accurate for the study of cartilage surface in the entire shoulder joint. This technique may beneficially impact patient's management by means of selecting the proper treatment approach.
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Lecouvet, F., Dorzée, B., Dubuc, J.-E., Vande Berg, B., Jamart, J., & Malghem, J. (2007). Cartilage lesions of the glenohumeral joint: diagnostic effectiveness of multidetector spiral CT arthrography and comparison with arthroscopy. European Radiology : journal of the European Congress of Radiology, 17(7), 1763-1771. https://doi.org/10.1007/s00330-006-0523-8 (Original work published 2007)