naa a22 4500 510747337 CHVBK 20180411083051.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11547-013-0942-y doi (NATIONALLICENCE)springer-10.1007/s11547-013-0942-y MR-arthrography in superior instability of the shoulder: correlation with arthroscopy [Elektronische Daten] [Eugenio Genovese, Emanuela Spanò, Alessandro Castagna, Anna Leonardi, Maria Angeretti, Leonardo Callegari, Carlo Fugazzola] Artro-RM di spalla nella instabilità superiore: correlazione con artroscopia Purpose: This study was undertaken to evaluate magnetic resonance (MR) arthrography in the detection and classification of lesions that may cause superior instability. Materials and methods: Forty-two consecutive patients with clinical signs of chronic superior instability of the shoulder underwent MR arthrography followed by arthroscopic surgery. For each patient we retrospectively reviewed the MR arthrography and surgical findings. Results: We detected 31 superior labral anterior posterior (SLAP) lesions, all confirmed on arthroscopy with three cases of underestimation: in the detection of SLAP lesions, the sensitivity, specificity, accuracy, positive predictive value (PPV) and negative predictive value (NPV) of MR arthrography were 100%; in the evaluation of the type of SLAP lesion, sensitivity was 100%, specificity was 78.5%, accuracy was 92.8%, PPV was 71.7% and NPV was 100%. All cases of capsular laxity (13/42) and biceps tendon lesions (3/42) were confirmed on arthroscopy with sensitivity, specificity, accuracy, PPV and NPV of 100%. Eleven cuff lesions were detected on MR arthrography, 10 of which confirmed at arthroscopy: sensitivity was 100%, specificity was 96.8%, accuracy was 97.6%, PPV was 90.9% and NPV was 100%. Associated lesions were found in 38/42 patients. Conclusions: Superior instability is frequently associated with different anatomical variants or pathological conditions, such as SLAP lesions. The role of MR arthrography is to describe the key features of lesions affecting the superior portion of the shoulder, including location, morphology, extent, and associated injuries and leanatomical variants and to correlate these features with clinical symptoms. Springer-Verlag Italia, 2013 Shoulder nationallicence MR arthrography nationallicence Instability nationallicence Superior instability nationallicence SLAP lesion nationallicence Spalla nationallicence Artrografia-RM nationallicence Instabilità nationallicence Instabilità superiore nationallicence SLAP lesion nationallicence Genovese Eugenio Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut Spanò Emanuela Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut Castagna Alessandro Unit of Shoulder Surgery, IRCCS Instituto Clinico Humanitas, Milan, Italy aut Leonardi Anna Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut Angeretti Maria Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut Callegari Leonardo Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut Fugazzola Carlo Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut La radiologia medica Springer Milan 118/6(2013-09-01), 1022-1033 0033-8362 118:6<1022 2013 118 11547 https://doi.org/10.1007/s11547-013-0942-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11547-013-0942-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Genovese Eugenio Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut NATIONALLICENCE 700 1- Spanò Emanuela Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut NATIONALLICENCE 700 1- Castagna Alessandro Unit of Shoulder Surgery, IRCCS Instituto Clinico Humanitas, Milan, Italy aut NATIONALLICENCE 700 1- Leonardi Anna Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut NATIONALLICENCE 700 1- Angeretti Maria Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut NATIONALLICENCE 700 1- Callegari Leonardo Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut NATIONALLICENCE 700 1- Fugazzola Carlo Department of Radiology, Insubria University, Via Guicciardini, 21100, Varese, Italy aut NATIONALLICENCE 773 0- La radiologia medica Springer Milan 118/6(2013-09-01), 1022-1033 0033-8362 118:6<1022 2013 118 11547 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer