Bencardino, Radiology 2000 - Superior Labrum Anterior- Posterior Lesions: Diagnosis with MR Arthrography of the Shoulder

Superior Labrum Anterior- Posterior Lesions: Diagnosis with MR Arthrography of the Shoulder

Bencardino, Rose, et al.·Radiology·2000·226 citations·Diagnostic study

Purpose

To determine the accuracy of magnetic resonance (MR) arthrography in the diagnosis of superior labrum anterior-posterior (SLAP) lesions of the shoulder.

Methods

From January 1995 to June 1998, MR arthrography of the shoulder was performed in 159 patients with a history of chronic shoulder pain or instability.
52 patients underwent arthroscopy or open surgery 12 days to 5 months after MR arthrography.
Diagnostic criteria for SLAP lesion included marked fraying of the articular aspect of the labrum, biceps anchor avulsion, inferiorly displaced bucket handle fragment, and extension of the tear into the biceps tendon fibers.
Surgical findings were correlated with those from MR arthrography.

Results

SLAP injuries were diagnosed at surgery in 19 of the 52 patients (37%).
Six of the 19 lesions (32%) were classified as type I, nine (47%) as type II, one (5%) as type III, and three (16%) as type IV.
MR arthrography had a sensitivity of 89% (17 of 19 patients), a specificity of 91% (30 of 33 patients), and an accuracy of 90% (47 of 52 patients).
The MR arthrographic classification showed correlation with the arthroscopic or surgical classification in 13 of 17 patients (76%) in whom SLAP lesions were diagnosed at MR arthrography.

Conclusions

MR arthrography is a useful and accurate technique in the diagnosis of SLAP lesions of the shoulder. MR arthrography provides pertinent preoperative information with regard to the exact location of tears and grade of involvement of the biceps tendon.

Supplemental

Superior Labrum Anterior- Posterior Lesions: Diagnosis with MR Arthrography of the Shoulder

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Neer Award 2005: The Grammont Reverse Shoulder Prosthesis: Results in Cuff Tear Arthritis, Fracture Sequelae, and Revision Arthroplasty.

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A System for the Surgical Staging of Musculoskeletal Sarcoma.

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Fracture Fixation in the Operative Management of Hip Fractures (FAITH): An International, Multicentre, Randomised Controlled Trial.

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Landmark

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Landmark

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Landmark

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Superior Labrum Anterior- Posterior Lesions: Diagnosis with MR Arthrography of the Shoulder

Bencardino, Rose, et al.·Radiology·2000·226 citations·Diagnostic study

DOI·PubMed

Purpose

To determine the accuracy of magnetic resonance (MR) arthrography in the diagnosis of superior labrum anterior-posterior (SLAP) lesions of the shoulder.

Methods

From January 1995 to June 1998, MR arthrography of the shoulder was performed in 159 patients with a history of chronic shoulder pain or instability.
52 patients underwent arthroscopy or open surgery 12 days to 5 months after MR arthrography.
Diagnostic criteria for SLAP lesion included marked fraying of the articular aspect of the labrum, biceps anchor avulsion, inferiorly displaced bucket handle fragment, and extension of the tear into the biceps tendon fibers.
Surgical findings were correlated with those from MR arthrography.

Results

SLAP injuries were diagnosed at surgery in 19 of the 52 patients (37%).
Six of the 19 lesions (32%) were classified as type I, nine (47%) as type II, one (5%) as type III, and three (16%) as type IV.
MR arthrography had a sensitivity of 89% (17 of 19 patients), a specificity of 91% (30 of 33 patients), and an accuracy of 90% (47 of 52 patients).
The MR arthrographic classification showed correlation with the arthroscopic or surgical classification in 13 of 17 patients (76%) in whom SLAP lesions were diagnosed at MR arthrography.

Conclusions

Purpose

To determine the accuracy of magnetic resonance (MR) arthrography in the diagnosis of superior labrum anterior-posterior (SLAP) lesions of the shoulder.

Methods

From January 1995 to June 1998, MR arthrography of the shoulder was performed in 159 patients with a history of chronic shoulder pain or instability.
52 patients underwent arthroscopy or open surgery 12 days to 5 months after MR arthrography.
Diagnostic criteria for SLAP lesion included marked fraying of the articular aspect of the labrum, biceps anchor avulsion, inferiorly displaced bucket handle fragment, and extension of the tear into the biceps tendon fibers.
Surgical findings were correlated with those from MR arthrography.

Results

SLAP injuries were diagnosed at surgery in 19 of the 52 patients (37%).
Six of the 19 lesions (32%) were classified as type I, nine (47%) as type II, one (5%) as type III, and three (16%) as type IV.
MR arthrography had a sensitivity of 89% (17 of 19 patients), a specificity of 91% (30 of 33 patients), and an accuracy of 90% (47 of 52 patients).
The MR arthrographic classification showed correlation with the arthroscopic or surgical classification in 13 of 17 patients (76%) in whom SLAP lesions were diagnosed at MR arthrography.

Conclusions

Purpose

To determine the accuracy of magnetic resonance (MR) arthrography in the diagnosis of superior labrum anterior-posterior (SLAP) lesions of the shoulder.

Methods

From January 1995 to June 1998, MR arthrography of the shoulder was performed in 159 patients with a history of chronic shoulder pain or instability.
52 patients underwent arthroscopy or open surgery 12 days to 5 months after MR arthrography.
Diagnostic criteria for SLAP lesion included marked fraying of the articular aspect of the labrum, biceps anchor avulsion, inferiorly displaced bucket handle fragment, and extension of the tear into the biceps tendon fibers.
Surgical findings were correlated with those from MR arthrography.

Results

SLAP injuries were diagnosed at surgery in 19 of the 52 patients (37%).
Six of the 19 lesions (32%) were classified as type I, nine (47%) as type II, one (5%) as type III, and three (16%) as type IV.
MR arthrography had a sensitivity of 89% (17 of 19 patients), a specificity of 91% (30 of 33 patients), and an accuracy of 90% (47 of 52 patients).
The MR arthrographic classification showed correlation with the arthroscopic or surgical classification in 13 of 17 patients (76%) in whom SLAP lesions were diagnosed at MR arthrography.