PURPOSE: The purpose of this study was to evaluate the sensitivity of preoperative magnetic resonance imaging (MRI) in detecting combined lesions of the glenoid labrum involving tears of the anterior, posterior, and superior labrum. METHODS: Preoperative MRI findings were available in 46 cases of arthroscopic repair of combined tears of the anterior, posterior, and superior labrum (mean age, 31 years), including 23 noncontrast MRI studies and 24 magnetic resonance (MR) arthrography studies (1 patient had both). MRI findings were compared with the status of the labrum at the time of arthroscopy, and the sensitivity of MRI was determined. RESULTS: MRI showed evidence of combined lesions of the anterior, posterior, and superior labrum in only 10 of 47 studies (21.3%). Only 2 of 23 (8.7%) tears were detected by noncontrast MRI, compared with 8 of 24 (33.3%) by MR arthrography (P = .07). Non-contrast MRI showed evidence of labral pathology in more than one direction in 10 of 23 studies (43.5%), compared with 20 of 24 MR arthrography studies (83.3%) (P = .006). Noncontrast MRI showed no evidence of a labral tear in 3 of 23 patients (13.0%), whereas no MR arthrogram was completely negative for a labral tear (0%) (P = .11). CONCLUSIONS: Combined tears of the anterior, posterior, and superior glenoid labrum are infrequent injuries that are typically not completely defined by either noncontrast MRI or MR arthrography. LEVEL OF EVIDENCE: Level III, diagnostic study.
PURPOSE: The purpose of this study was to evaluate the sensitivity of preoperative magnetic resonance imaging (MRI) in detecting combined lesions of the glenoid labrum involving tears of the anterior, posterior, and superior labrum. METHODS: Preoperative MRI findings were available in 46 cases of arthroscopic repair of combined tears of the anterior, posterior, and superior labrum (mean age, 31 years), including 23 noncontrast MRI studies and 24 magnetic resonance (MR) arthrography studies (1 patient had both). MRI findings were compared with the status of the labrum at the time of arthroscopy, and the sensitivity of MRI was determined. RESULTS: MRI showed evidence of combined lesions of the anterior, posterior, and superior labrum in only 10 of 47 studies (21.3%). Only 2 of 23 (8.7%) tears were detected by noncontrast MRI, compared with 8 of 24 (33.3%) by MR arthrography (P = .07). Non-contrast MRI showed evidence of labral pathology in more than one direction in 10 of 23 studies (43.5%), compared with 20 of 24 MR arthrography studies (83.3%) (P = .006). Noncontrast MRI showed no evidence of a labral tear in 3 of 23 patients (13.0%), whereas no MR arthrogram was completely negative for a labral tear (0%) (P = .11). CONCLUSIONS: Combined tears of the anterior, posterior, and superior glenoid labrum are infrequent injuries that are typically not completely defined by either noncontrast MRI or MR arthrography. LEVEL OF EVIDENCE: Level III, diagnostic study.
Authors: Adam D Singer; Jeffrey Rosenthal; Monica Umpierrez; Yi Guo; Felix Gonzalez; Eric Wagner Journal: Skeletal Radiol Date: 2019-11-27 Impact factor: 2.199
Authors: Justin J Ernat; Dylan R Rakowski; Aaron J Casp; Simon Lee; Annalise M Peebles; Jared A Hanson; Matthew T Provencher; Peter J Millett Journal: Arthrosc Sports Med Rehabil Date: 2021-12-07
Authors: Glaydson Gomes Godinho; Flávio de Oliveira França; José Márcio Alves Freitas; Lander Braga Calais Correia Pinto; Carolina Lima Simionatto; Pedro Paulo Gomes Viana Filho Journal: Rev Bras Ortop Date: 2017-03-06
Authors: Daniel P Berthold; Matthew R LeVasseur; Lukas N Muench; Michael R Mancini; Colin L Uyeki; Julianna Lee; Knut Beitzel; Andreas B Imhoff; Robert A Arciero; Bastian Scheiderer; Sebastian Siebenlist; Augustus D Mazzocca Journal: Am J Sports Med Date: 2021-11-01 Impact factor: 6.202