Anatomy, anatomic variations, and pathology of the 11- to 3-o'clock position of the glenoid labrum: findings on MR arthrography and anatomic sections.

Kwak, Sandy; Brown, Robert R.; Resnick, Donald; Trudell, Debra; Applegate, Gregory R.; Haghighi, Parviz

doi:10.2214/ajr.171.1.9648795

Cited by 60 publications

(26 citation statements)

References 7 publications

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“…Lateral or superior extension of contrast medium into the superior labrum and the biceps anchor indicated a SLAP type II lesion, whereas medial extension of the contrast medium with a smooth linear appearance between the superior labrum and the glenoid rim was indicative of a sublabral recess [13]. A Buford complex consisting of an absent anterosuperior labrum and a thick cordlike middle glenohumeral ligament [14] that may be mistaken for a displaced labral fragment on arthrography was excluded [15]. Subscapularis tendon tears were defined as follows: discontinuity of the tendon, contrast med ium entering the tendon, abnormal signal inten sity, and caliber change.…”

Section: Image Analysismentioning

confidence: 99%

Comparison of Indirect Isotropic MR Arthrography and Conventional MR Arthrography of Labral Lesions and Rotator Cuff Tears: A Prospective Study

Yoon²,

Kwon³

et al. 2009

American Journal of Roentgenology

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Section: Image Analysismentioning

confidence: 99%

Comparison of Indirect Isotropic MR Arthrography and Conventional MR Arthrography of Labral Lesions and Rotator Cuff Tears: A Prospective Study

Yoon²,

Kwon³

et al. 2009

American Journal of Roentgenology

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“…The labrum can be variable in size and shape, and morphological criteria may not be sufficient to distinguish a small, normal labrum from a blunted, deficient labrum. Normal sublabral sulci occur at the interface of the labrum with the articular cartilage and may fill with contrast solution, mimicking a tear [28,29]. Occasionally, the labrum may become completely detached from the glenoid because of a sublabral hole or foramen.…”

Section: Glenoid Labrummentioning

confidence: 99%

Direct magnetic resonance arthrography

Elentuck

Palmer

2004

Eur Radiol

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Magnetic resonance (MR) arthrography has gained increasing popularity as a diagnostic tool in the assessment of intra-articular derangements. Its role has been studied extensively in the shoulder, but it also has been explored in the hip, elbow, knee, wrist and ankle. This article reviews the current role of direct MR arthrography in several major joints, with consideration of pertinent anatomy, techniques and applications.

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“…The complexity of injuries involving the labralbicipital structures may also contribute to this difficulty (1). MR arthrograms can routinely be obtained in the transverse, coronal, and sagittal planes.…”

Section: Introductionmentioning

confidence: 99%

CT and MR Arthrography of the Normal and Pathologic Anterosuperior Labrum and Labral-Bicipital Complex

Maeseneer¹,

Roy

Lenchik³

et al. 2000

RadioGraphics

122

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Interpretation of computed tomographic and magnetic resonance arthrograms of the shoulder is complicated by normal variants of the labrum and glenohumeral ligaments. A superior sublabral recess is located at the 12 o'clock position and represents a normal recess between the superior labrum and the cartilage of the glenoid cavity. A sublabral foramen is located at the 2 o'clock position and represents localized detachment of the labrum from the glenoid rim. Buford complex is characterized by absence of the anterosuperior labrum and cordlike thickening of the middle glenohumeral ligament. Imaging features of damage to the anterior labrum include absence or detachment of the labrum and an irregular frayed appearance. Superior labrum anterior-to-posterior (SLAP) lesions are classified as type I (tear confined to the superior labrum), type II (labrum and biceps tendon detached from the superior glenoid), type III (bucket handle tear of the superior labrum), or type IV (bucket handle tear of the superior labrum with lateral extension into the biceps tendon). Increased distance between the labrum and the glenoid, an irregular appearance of the labral margin, or lateral extension of the separation may suggest a SLAP lesion rather than a normal anatomic variant. However, differentiation between normal variants and pathologic conditions and between various types of SLAP lesions remains difficult.

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Anatomy, anatomic variations, and pathology of the 11- to 3-o'clock position of the glenoid labrum: findings on MR arthrography and anatomic sections.

Cited by 60 publications

References 7 publications

Comparison of Indirect Isotropic MR Arthrography and Conventional MR Arthrography of Labral Lesions and Rotator Cuff Tears: A Prospective Study

Comparison of Indirect Isotropic MR Arthrography and Conventional MR Arthrography of Labral Lesions and Rotator Cuff Tears: A Prospective Study

Direct magnetic resonance arthrography

CT and MR Arthrography of the Normal and Pathologic Anterosuperior Labrum and Labral-Bicipital Complex

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