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Journal of the Korean Shoulder and Elbow Society 2000;3(2):95-101.
Published online December 30, 2000.
Optimal Shoulder Position for Visualization of SLAP II lesion on MR-Arthrography
Young- Soo Lee, M.D., Dong- Bae Shin, M.D., Soo-Jin Park, M.D., Jin-Yong Kim, M.D., Hee-Sang Kim, M.D., Du- Hae Ha, M.D.*
Departement of Orthopaedic Surgery and Radiology*
Bundang CHA Hospital, College of Medicine, Pochon CHA University, Sungnam, Korea.
SLAP II 병변의 진단을 위한 관절 조영 자기 공명 영상에서 견관절 위치에 따른 비교
이영수, 신동배, 박수진, 김진용, 김희상, 하두회
포천중문의대 분당차병원 정형외과학교실, 진단방사선학교실*
Abstract
Purpose
: The purpose of this study was to evaluate the efficacy of oblique coronal MR images, oblique axial images of neutral, internal rotation and external rotation positions in the diagnosis of SLAP II lesion. Materials and Methods : MR arthrography of the glenohumeral joint was evaluated retrospectively in 16 patients(16 shoulders) who underwent arthroscopic surgery(mean age; 38 years old, Male ; 13, Female ; 3). Oblique coronal fat-suppressed T1-weighted spin echo images were performed with each shoulder in the neutral position of the arm and oblique axial images were performed in neutral, internal and external rotations of the arm respectively. The preoperative findings of MR were classified as definite tear, possible tear and no tear. Arthroscopic findings were correlated with MR findings of several different position of the arm. Results : Arthroscopic surgery revealed 8 SLAP II lesion, 2 SLAP I lesion, and 6 normal superior labrum respectively. The accuracy of diagnosis in the 8 SLAP II lesion were high on oblique axial image in external rotation which were interpreted as 8 definite tear, to compare with oblique axial images in neutral position which were interpreted as 4 definite tear, 3 possible tear, 1 no tear. The 6 normal superior labrum lesion were interpreted as no tear in all three position. The 2 SLAP I lesion were interpreted as 1 definite tear, 1 no tear on oblique axial image in neutral position and 1 definite tear, 1 possible tear on oblique axial image in external rotation. Conclusion : This study showed that axial MR images in external rotation of the arm combined with oblique coronal images have proved to be effective to detect SLAP II lesion, and should be considered in imaging protocol for MR arthrography of the SLAP II lesion.
Key Words: Shoulder, SLAP II, MR arthrography
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