The added value of ABER position for the detection and classification of anteroinferior labroligamentous lesions in MR arthrography of the shoulder

Tian, Chao; Cui, Guoqing; Zheng, Zhuozhao; Ren, A-Hong

doi:10.1016/j.ejrad.2012.11.038

Cited by 45 publications

(48 citation statements)

References 22 publications

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“…Patients between the ages of 40 years and 60 years have an increased risk of clinically relevant rotator cuff tears (approximately 40%) and, consequently should undergo routine ultrasound/magnetic resinance imaging to assess cuff integrity. MRA is the investigation of choice (CTA is an accepted alternative if MRA is unavailable) to identify Bankart lesions with a sensitivity and specificity of 88% and 91% to 93% respectively 18,19 Sensitivity and specificity significantly increases when MRA is also performed with the shoulder in an abducted and externally rotated position (ABER) 20 CT is the most accurate at calculating glenoid bone loss 21 , a potential complication of recurrent instability. However, magnetic resinance imaging is also satisfactory and has the advantage of defining soft tissue abnormalities better Non-operative management .…”

Section: Further Investigationsmentioning

confidence: 99%

BESS/BOA Patient Care Pathways

Brownson¹,

Donaldson²,

Fox³

et al. 2015

Shoulder & Elbow

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Section: Further Investigationsmentioning

confidence: 99%

BESS/BOA Patient Care Pathways

Brownson¹,

Donaldson²,

Fox³

et al. 2015

Shoulder & Elbow

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“…Abduction and external rotation (ABER) positioning can also can put tension on the IGHL making this injury more visible [23]. Tian et al [24] evaluated 229 shoulder MR arthrography cases comparing the ABER position to the standard neutral position for the detection of anteroinferior labroligamentous lesions. With the ABER position, accuracy of detecting Perthes lesions was significantly better than the neutral position, 74 versus 40%, respectively.…”

Section: Soft Tissue Injuries Labrum and Periosteummentioning

confidence: 99%

Radiographic Evaluation of Patients with Anterior Shoulder Instability

Kompel

Guermazi

et al. 2017

Curr Rev Musculoskelet Med

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Magnetic resonance (MR) imaging is highly relied upon for evaluating anterior shoulder instability and can diagnose soft tissue injuries with high sensitivity. While 3D computed tomography (CT) scan has been considered the optimal tool for evaluating osseous defects, certain MR imaging sequences have been shown to have similar diagnostic accuracy. Repair of Bankart lesions is critical to stabilizing the shoulder, and in the recent years, there has been an increasing focus on imaging to accurately characterize and measure glenoid bone loss to properly indicate patients for either arthroscopic repair or anterior bony reconstruction. Furthermore, Hill-Sachs lesions are commonly seen with shoulder instability, and importance must be placed on measuring the size and depth of these lesions along with possible engagement, as these factors will dictate management. The labral-ligamentous complex and rotator cuff are primary stabilizers of the shoulder. With anterior shoulder instability, the labrum is frequently injured. MRI with an arthrogram or provocative maneuvers is the gold standard for diagnosis. Various imaging modalities and methods can be performed to identify and measure Bankart and Hill-Sachs lesions, which can then be used for surgical planning and treating shoulder instability.

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“…If tolerated by the patient, ABER positioning can add diagnostic confidence. 10,[89][90][91][92][93][94] In the ABER position, the anterior band of the inferior glenohumeral ligament is stretched, allowing better evaluation of the anterior inferior labroligamentous complex. 91,93,94 Tendon delamination and undersurface partial-thickness cuff tears are easier to detect in the ABER position because the supraspinatus tendon is relaxed 89,94 (►Fig.…”

Section: Imaging Protocols (Mri Imaging Parameters and Sequences)mentioning

confidence: 99%

“…94 MR arthrography with the shoulder in the ABER position increases the accuracy of MR arthrography for detecting these lesions. 91,94 One recent study suggested that ALPSA lesions are best detected on MR arthrography with the shoulder in the adduction internal rotation position. 146 It is crucial to identify ALPSA lesions preoperatively because they have been associated with a twofold higher glenoid bone loss and have a higher risk of postoperative recurrence of instability.…”

Section: Evaluating Instability and Dislocations Of The Shouldermentioning

confidence: 99%

MR Arthrography of the Shoulder: Technical Update and Clinical Applications

Sebro

Oliveira

Palmer

2014

Semin Musculoskelet Radiol

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Direct MR arthrography of the shoulder is a safe, relatively easy procedure that can increase diagnostic confidence in the evaluation of rotator cuff and labroligamentous disorders compared with conventional MR imaging of the shoulder. Surgeons more often request MR arthrography in younger patients who may have internal impingement or subtle shoulder subluxation rather than obvious cuff rupture, repeated dislocation, or arthropathy. This article describes the advances in glenohumeral injection and MR protocol techniques, imaging pitfalls, anatomical variants, common lesions associated with internal derangement of the shoulder, and MR arthrography of the postoperative shoulder.

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The added value of ABER position for the detection and classification of anteroinferior labroligamentous lesions in MR arthrography of the shoulder

Cited by 45 publications

References 22 publications

BESS/BOA Patient Care Pathways

BESS/BOA Patient Care Pathways

Radiographic Evaluation of Patients with Anterior Shoulder Instability

MR Arthrography of the Shoulder: Technical Update and Clinical Applications

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