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Fig. 4 | Insights into Imaging

Fig. 4

From: A practical guide for performing arthrography under fluoroscopic or ultrasound guidance

Fig. 4

a Comparison of the rotator interval approach to the Schneider technique on a diagrammatic representation of the shoulder joint, with two transverse sections (B and C). b At the level of the rotator interval, the needle path is shorter and the long head of the biceps tendon is easily avoided by placing the arm in external rotation. c With the Schneider technique, the subscapularis tendon and antero-inferior labrum are regularly perforated by the needle or impregnated by the contrast agent

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