Authors: Frédéric E Lecouvet Benjamin Dorzée Jean E Dubuc Bruno C Vande Berg Jacques Jamart Jacques Malghem
Publish Date: 2006/12/21
Volume: 17, Issue: 7, Pages: 1763-1771
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 ≥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 0532 and 0651 Interobserver agreement was moderate for grading all articular surfaces κ = 0457 but substantial to almost perfect for detecting lesions with substance loss κ 0618–0876 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
Keywords: