MRI of the Rotator Interval Capsule

Krief, Olivier P.

doi:10.2214/ajr.184.5.01841490

Cited by 40 publications

(11 citation statements)

References 10 publications

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“…The CHL appears flat with a homogeneous, low-signal intensity linear band surrounded by hyper-intensity fat tissue in T1-weighted spin-echo images (Figure 2). The CHL is always well identified in the mid-portion of the rotator cuff interval and is visualized on all planes, but as the sagittal images are the most useful for analysis of this structure by MRI [15], the thickest portion of the CHL was measured on sagittal, T1-weighted, spin-echo oblique images in our study (see Figure 1 and Figure 2). …”

Section: Discussionmentioning

confidence: 81%

MRI Findings for Frozen Shoulder Evaluation: Is the Thickness of the Coracohumeral Ligament a Valuable Diagnostic Tool?

Tang

Wang

et al. 2011

PLoS ONE

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BackgroundRecent studies have demonstrated that the coracohumeral ligament (CHL) is shortened and thickened in a frozen shoulder. We analyzed the rate in CHL visualization between patients with frozen shoulder and normal volunteers using Magnetic Resonance Imaging (MRI) to determine the CHL thickness in the patients with a frozen shoulder.Methods and FindingsThere were 72 shoulder joints in 72 patients (50 femles and 22 males with a mean age of 53.5 years) with clinical evidence and MR imaging evidence of frozen shoulder. These were prospectively analyzed to identify and measure the maximum thickness of the CHL. The control group, which included 120 shoulder joints in 60 normal volunteer individuals (30 females and 30 males with a mean age of 50.5 years) was also referred for MR imaging. A chi-square test was used to analyze the data of the rate of CHL visualization between the patients with frozen shoulder and the control group. A two-way ANOVA was used to analyze the mean maximal thickness of CHL. The CHL was visualized in 110 out of 120 shoulders in the control group (91.7%), and in 57 out of 72 shoulders for the frozen shoulder group (79.2%), there was significant difference, using a chi-square test (P<0.05). The CHL was not visualized in 10 out of 120 shoulders in the control group (8.3%), and 15 out of 72 shoulders in the frozen shoulder group (20.8%), there was a significant difference (P<0.05). The CHL thickness (3.99±1.68 mm) in the patients with frozen shoulder was significantly greater than that thickness (3.08±1.32 mm) in the control group, using a two-way ANOVA (P<0.001). The CHL thickness (3.52±1.52 mm, n = 97) in the female shoulders was no significantly greater than that thickness (3.22±1.49 mm, n = 70) in the male shoulders, using a two-way ANOVA (P>0.05).ConclusionsMR Imaging is a satisfactory method for CHL depiction, and a thickened CHL is highly suggestive of frozen shoulder.

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Section: Discussionmentioning

confidence: 81%

MRI Findings for Frozen Shoulder Evaluation: Is the Thickness of the Coracohumeral Ligament a Valuable Diagnostic Tool?

Tang

Wang

et al. 2011

PLoS ONE

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“…Therefore, the correct diagnosis of a pulley lesion on MR images would not only enable a more accurate planning of treatment and time duration of surgery but also provide an adequate means for preoperative patient education. The theory of the displacement sign is that, in the absence of the supporting SGHL, the LHBT displaces caudad onto the SSC tendon, where the tendinous slip at the superior border serves as an additional restraint (3,21). This leads to abnormal and more medial contact of the horizontal portion of the LHBT with the SSC tendon.…”

Section: Image Interpretationmentioning

confidence: 99%

Lesions of the Biceps Pulley: Diagnostic Accuracy of MR Arthrography of the Shoulder and Evaluation of Previously Described and New Diagnostic Signs

Schaeffeler

Waldt²,

Holzapfel³

et al. 2012

Radiology

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“…Medially, the CHL is a linear structure passing through the fat above the joint capsule. [10][11][12]15,21,22,34,[41][42][43][44][45][46] The SGHL can be seen to arise from the superior labrum, just anterior to the insertion of the long tendon of the biceps at the level of the base of the coracoid process. The SGHL courses almost parallel with the coracoid process, nearly perpendicular to the MGHL.…”

Section: Imaging Of the Normal Sghlc And Its Variantsmentioning

confidence: 99%

Advanced Imaging of the Glenohumeral Ligaments

Pouliart

Boulet

Maeseneer

et al. 2014

Semin Musculoskelet Radiol

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The glenohumeral ligaments (GHLs) are the most important passive stabilizers of the shoulder joint. Recognition of acute and chronic glenohumeral ligamentous lesions is very important in the preoperative work-up of shoulder instability and trauma. This article describes and depicts the normal anatomy of the GHLs and their appearance during arthroscopy and on MR and computed tomography arthrography (CTA). Pathologic findings of the superior, middle, and inferior GHLs are described and illustrated with MR and CTA and their corresponding intraoperative arthroscopic images. MR arthrography (MRA) is useful for direct visualization of all GHLs including most lesions of their intra-articular portion and associated capsulolabral pathologies. Sprains, midsubstance tears, avulsion, or fibrous infiltration of the GHL can be identified on MRA images using fast spin-echo sequences with and without fat saturation in the three planes. Although CTA is reputed to better depict associated bony and cartilage lesions, CTA allows only indirect evaluation of the GHLs by outlining their contour or showing contrast penetration. Normal variants may create pitfalls that one should be aware of. Signs of GHL pathology on imaging include: discontinuity, nonvisualization, changes in signal intensity (on MRA), contrast extravasation, contour irregularity, thickening, or waviness.

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MRI of the Rotator Interval Capsule

Cited by 40 publications

References 10 publications

MRI Findings for Frozen Shoulder Evaluation: Is the Thickness of the Coracohumeral Ligament a Valuable Diagnostic Tool?

MRI Findings for Frozen Shoulder Evaluation: Is the Thickness of the Coracohumeral Ligament a Valuable Diagnostic Tool?

Lesions of the Biceps Pulley: Diagnostic Accuracy of MR Arthrography of the Shoulder and Evaluation of Previously Described and New Diagnostic Signs

Advanced Imaging of the Glenohumeral Ligaments

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