Superior Labral Anterior-to-Posterior Lesions: Comparison of External Rotation and Active Supination CT Arthrography with Neutral CT Arthrography

Abstract

ERAS CT arthrography might improve the detection of SLAP lesions compared with neutral-position CT arthrography.

Direct MR arthrography of the shoulder under axial traction: Feasibility study to evaluate the superior labrum‐biceps tendon complex and articular cartilage

“…However, the diagnosis of labral tears remains challenging due to subtle imaging findings, anatomical variations and pitfalls (14). This is why many different stress positions have been evaluated in shoulder MR arthrography over the past 15 years (15)(16)(17)(18).…”

“…With regard to the superior labrum, Jung et al found that the addition of external rotation to shoulder MR arthrography was helpful in the diagnosis of SLAP lesions and provided additional information about the displaceability of the torn labrum (17). Moreover, Choi et al recently reported that external rotation of the shoulder with active supination of the wrist improved the detection of SLAP lesions, compared with CT arthrography in neutral position (18). Joint distraction with axial traction might be complementary to such stress positions.…”

External rotation and active supination CT arthrography for the postoperative evaluation of type II superior labral anterior to posterior lesions

“…External rotation and active supination CT arthrography has been introduced in the diagnosis of SLAP lesions by Choi et al [2] who reported that this method showed superior diagnostic performance to the conventional neutral CT arthrography. The external rotation and active supination maneuver, using a positioning device, places the long head of the biceps under tension by external rotation of the humerus (passive tension) and active supination of the forearm (active tension).…”

“…The external rotation and active supination maneuver, using a positioning device, places the long head of the biceps under tension by external rotation of the humerus (passive tension) and active supination of the forearm (active tension). This tension drags the superior labrum from the glenoid; this positioning allows for the potential evaluation of the stability of the labrum at the glenoid [2]. It is regarded as unstable if the gap between the labrum and glenoid widens in external rotation and active supination position CT arthrography compared with neutral position CT arthrography.…”

Intraarticular Local Anesthesia: Can It Reduce Pain Related to MR or CT Arthrography of the Shoulder?

“…CT arthrography is an alternative method used to diagnose shoulder abnormalities-in particular, labral lesions [3][4][5]. Direct MR and CT arthrography are somewhat invasive procedures, however, and patients often complain afterward of arthrography-related pain [6][7][8][9].…”