The Experts below are selected from a list of 279 Experts worldwide ranked by ideXlab platform
James R Andrews - One of the best experts on this subject based on the ideXlab platform.
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preoperative evaluation of the ulnar collateral ligament by magnetic resonance imaging and computed tomography arthrography evaluation in 25 baseball players with surgical confirmation
American Journal of Sports Medicine, 1994Co-Authors: Laura A Timmerman, Martin L. Schwartz, James R AndrewsAbstract:A prospective study was completed on 25 baseball play ers with medial side elbow pain. They were evaluated preoperatively with both computed tomography arthro gram and magnetic resonance imaging examinations of the elbow to assess the ulnar collateral ligament. At surgery, 16 of 25 patients had an abnormal ulnar col lateral ligament and 9 patients had a normal ulnar col lateral ligament. The computed tomography Arthrogram detected abnormalities in 12 of the 14 patients with ulnar collateral ligament tearing (sensitivity, 86%). The mag netic resonance imaging scan indicated abnormalities in 8 of 14 patients (sensitivity, 57%). The specificity of the computed tomography Arthrogram was 91 % and the magnetic resonance imaging was 100%.A newly described "T-sign" was seen on the com puted tomography Arthrogram in the patients with an undersurface tear of the ulnar collateral ligament. This represented the dye leaking around the detachment of the ulnar collateral ligament from its bony insertion but remaining co...
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Preoperative evaluation of the ulnar collateral ligament by magnetic resonance imaging and computed tomography arthrography. Evaluation in 25 baseball players with surgical confirmation
The American journal of sports medicine, 1994Co-Authors: Laura A Timmerman, Martin L. Schwartz, James R AndrewsAbstract:A prospective study was completed on 25 baseball players with medial side elbow pain. They were evaluated preoperatively with both computed tomography Arthrogram and magnetic resonance imaging examinations of the elbow to assess the ulnar collateral ligament. At surgery, 16 of 25 patients had an abnormal ulnar collateral ligament and 9 patients had a normal ulnar collateral ligament. The computed tomography Arthrogram detected abnormalities in 12 of the 14 patients with ulnar collateral ligament tearing (sensitivity, 86%). The magnetic resonance imaging scan indicated abnormalities in 8 of 14 patients (sensitivity, 57%). The specificity of the computed tomography Arthrogram was 91% and the magnetic resonance imaging was 100%. A newly described "T-sign" was seen on the computed tomography Arthrogram in the patients with an undersurface tear of the ulnar collateral ligament. This represented the dye leaking around the detachment of the ulnar collateral ligament from its bony insertion but remaining contained within the intact superficial layer of the ulnar collateral ligament and capsule. Both the computed tomography Arthrogram and the magnetic resonance imaging scan were accurate in diagnosing a complete tear of the ulnar collateral ligament preoperatively in all cases. The main advantage of the computed tomography Arthrogram was in evaluating the partial undersurface tear.
Laura A Timmerman - One of the best experts on this subject based on the ideXlab platform.
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preoperative evaluation of the ulnar collateral ligament by magnetic resonance imaging and computed tomography arthrography evaluation in 25 baseball players with surgical confirmation
American Journal of Sports Medicine, 1994Co-Authors: Laura A Timmerman, Martin L. Schwartz, James R AndrewsAbstract:A prospective study was completed on 25 baseball play ers with medial side elbow pain. They were evaluated preoperatively with both computed tomography arthro gram and magnetic resonance imaging examinations of the elbow to assess the ulnar collateral ligament. At surgery, 16 of 25 patients had an abnormal ulnar col lateral ligament and 9 patients had a normal ulnar col lateral ligament. The computed tomography Arthrogram detected abnormalities in 12 of the 14 patients with ulnar collateral ligament tearing (sensitivity, 86%). The mag netic resonance imaging scan indicated abnormalities in 8 of 14 patients (sensitivity, 57%). The specificity of the computed tomography Arthrogram was 91 % and the magnetic resonance imaging was 100%.A newly described "T-sign" was seen on the com puted tomography Arthrogram in the patients with an undersurface tear of the ulnar collateral ligament. This represented the dye leaking around the detachment of the ulnar collateral ligament from its bony insertion but remaining co...
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Preoperative evaluation of the ulnar collateral ligament by magnetic resonance imaging and computed tomography arthrography. Evaluation in 25 baseball players with surgical confirmation
The American journal of sports medicine, 1994Co-Authors: Laura A Timmerman, Martin L. Schwartz, James R AndrewsAbstract:A prospective study was completed on 25 baseball players with medial side elbow pain. They were evaluated preoperatively with both computed tomography Arthrogram and magnetic resonance imaging examinations of the elbow to assess the ulnar collateral ligament. At surgery, 16 of 25 patients had an abnormal ulnar collateral ligament and 9 patients had a normal ulnar collateral ligament. The computed tomography Arthrogram detected abnormalities in 12 of the 14 patients with ulnar collateral ligament tearing (sensitivity, 86%). The magnetic resonance imaging scan indicated abnormalities in 8 of 14 patients (sensitivity, 57%). The specificity of the computed tomography Arthrogram was 91% and the magnetic resonance imaging was 100%. A newly described "T-sign" was seen on the computed tomography Arthrogram in the patients with an undersurface tear of the ulnar collateral ligament. This represented the dye leaking around the detachment of the ulnar collateral ligament from its bony insertion but remaining contained within the intact superficial layer of the ulnar collateral ligament and capsule. Both the computed tomography Arthrogram and the magnetic resonance imaging scan were accurate in diagnosing a complete tear of the ulnar collateral ligament preoperatively in all cases. The main advantage of the computed tomography Arthrogram was in evaluating the partial undersurface tear.
Martin L. Schwartz - One of the best experts on this subject based on the ideXlab platform.
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preoperative evaluation of the ulnar collateral ligament by magnetic resonance imaging and computed tomography arthrography evaluation in 25 baseball players with surgical confirmation
American Journal of Sports Medicine, 1994Co-Authors: Laura A Timmerman, Martin L. Schwartz, James R AndrewsAbstract:A prospective study was completed on 25 baseball play ers with medial side elbow pain. They were evaluated preoperatively with both computed tomography arthro gram and magnetic resonance imaging examinations of the elbow to assess the ulnar collateral ligament. At surgery, 16 of 25 patients had an abnormal ulnar col lateral ligament and 9 patients had a normal ulnar col lateral ligament. The computed tomography Arthrogram detected abnormalities in 12 of the 14 patients with ulnar collateral ligament tearing (sensitivity, 86%). The mag netic resonance imaging scan indicated abnormalities in 8 of 14 patients (sensitivity, 57%). The specificity of the computed tomography Arthrogram was 91 % and the magnetic resonance imaging was 100%.A newly described "T-sign" was seen on the com puted tomography Arthrogram in the patients with an undersurface tear of the ulnar collateral ligament. This represented the dye leaking around the detachment of the ulnar collateral ligament from its bony insertion but remaining co...
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Preoperative evaluation of the ulnar collateral ligament by magnetic resonance imaging and computed tomography arthrography. Evaluation in 25 baseball players with surgical confirmation
The American journal of sports medicine, 1994Co-Authors: Laura A Timmerman, Martin L. Schwartz, James R AndrewsAbstract:A prospective study was completed on 25 baseball players with medial side elbow pain. They were evaluated preoperatively with both computed tomography Arthrogram and magnetic resonance imaging examinations of the elbow to assess the ulnar collateral ligament. At surgery, 16 of 25 patients had an abnormal ulnar collateral ligament and 9 patients had a normal ulnar collateral ligament. The computed tomography Arthrogram detected abnormalities in 12 of the 14 patients with ulnar collateral ligament tearing (sensitivity, 86%). The magnetic resonance imaging scan indicated abnormalities in 8 of 14 patients (sensitivity, 57%). The specificity of the computed tomography Arthrogram was 91% and the magnetic resonance imaging was 100%. A newly described "T-sign" was seen on the computed tomography Arthrogram in the patients with an undersurface tear of the ulnar collateral ligament. This represented the dye leaking around the detachment of the ulnar collateral ligament from its bony insertion but remaining contained within the intact superficial layer of the ulnar collateral ligament and capsule. Both the computed tomography Arthrogram and the magnetic resonance imaging scan were accurate in diagnosing a complete tear of the ulnar collateral ligament preoperatively in all cases. The main advantage of the computed tomography Arthrogram was in evaluating the partial undersurface tear.
H. Aniq - One of the best experts on this subject based on the ideXlab platform.
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Diagnostic value of MR Arthrogram in SLAP lesions of the shoulder.
The surgeon : journal of the Royal Colleges of Surgeons of Edinburgh and Ireland, 2010Co-Authors: H. J. Iqbal, S. Rani, A. Mahmood, Peter Brownson, H. AniqAbstract:Abstract Background Superior labrum anterior to posterior (SLAP) lesions are important cause of shoulder pain and instability. MR Arthrogram is key investigation for assessment of these lesions. We aimed this study to evaluate the diagnostic performance of MR Arthrogram in SLAP tears. Materials and methods This was a retrospective study of 124 clinically diagnosed SLAP cases who had MR Arthrogram performed. Clinical, radiological and operative records were reviewed. MR Arthrogram findings were compared with arthroscopy. Those patients who did not undergo arthroscopy were not included in the final sensitivity analysis. Results Out of 124 cases, 54(43.54%) had normal MR Arthrogram, 32 (25.8%) had impingement or cuff related problems, 2 (1.61%) had Bankart lesions, and in 36 (29%) cases SLAP lesions were identified. Out of 54 patients with normal MR Arthrogram, 44 were discharged to physiotherapy and 10 underwent arthroscopy, showing SLAP lesion in one patient. Out of 32 patients with impingement or cuff problems, 19 were discharged to rehabilitation and 13 underwent surgery. Out of 36 patients with SLAP lesions, 5 recovered spontaneously, 5 were awaiting outpatient review and 26 underwent arthroscopy showing SLAP lesions in 22 cases. Overall, only 51 patients underwent arthroscopy. The MR Arthrogram was falsely positive in 4 cases (15.38%) and falsely negative in one case (3.84%). The sensitivity of MR Arthrogram was 95.6% (22/23), specificity 85.7% (24/28), positive predictive value 84.6% (22/26) and the negative predictive value was 96% (24/25). Conclusion MR Arthrogram is a useful technique for the diagnosis and preoperative planning of suspected SLAP lesions. It may also save patients from unnecessary diagnostic arthroscopy.
Curtis W. Hayes - One of the best experts on this subject based on the ideXlab platform.
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US of the Anterior Bundle of the Ulnar Collateral Ligament: Findings in Five Cadaver Elbows with MR Arthrographic and Anatomic Comparison—Initial Observations
Radiology, 2003Co-Authors: Jon A Jacobson, Tim Propeck, David A. Jamadar, Peter J L Jebson, Curtis W. HayesAbstract:PURPOSE: To characterize the ultrasonographic (US) appearance of the anterior bundle of the ulnar collateral ligament of the elbow by comparing US images with magnetic resonance (MR) Arthrograms and anatomic slices. MATERIALS AND METHODS: The ulnar collateral ligament in four cadavers (eight elbows) was blindly evaluated with US by one musculoskeletal radiologist with experience in musculoskeletal US. These results were compared with standard Arthrograms, MR Arthrograms, and anatomic slices by consensus reading of two musculoskeletal radiologists. The criteria for an abnormal ulnar collateral ligament included contrast material extension into the ligament or fiber discontinuity, as documented by MR arthrography and anatomic slices. RESULTS: Standard arthrography, MR arthrography, and anatomic slices demonstrated the ulnar collateral ligament to be unequivocally normal in three specimens and abnormal in two. The remaining three elbows did not meet the criteria for classification as either normal or abnorma...
