Retrospective Study
Copyright ©The Author(s) 2017. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Radiol. Mar 28, 2017; 9(3): 126-133
Published online Mar 28, 2017. doi: 10.4329/wjr.v9.i3.126
Reporting rotator cuff tears on magnetic resonance arthrography using the Snyder’s arthroscopic classification
Alberto Aliprandi, Carmelo Messina, Paolo Arrigoni, Michele Bandirali, Giovanni Di Leo, Stefano Longo, Sandro Magnani, Chiara Mattiuz, Filippo Randelli, Silvana Sdao, Francesco Sardanelli, Luca Maria Sconfienza, Pietro Randelli
Alberto Aliprandi, Michele Bandirali, Giovanni Di Leo, Silvana Sdao, Francesco Sardanelli, Servizio di Radiologia, IRCCS Policlinico San Donato, 20097 San Donato Milanese, Italy
Carmelo Messina, Sandro Magnani, Chiara Mattiuz, Scuola di Specializzazione in Radiodiagnostica, Università degli Studi di Milano, 20122 Milano, Italy
Paolo Arrigoni, Unità Operativa di Ortopedia e Traumatologia II, IRCCS Policlinico San Donato, 20097 San Donato Milanese, Italy
Stefano Longo, Francesco Sardanelli, Luca Maria Sconfienza, Pietro Randelli, Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, 20139 Milano, Italy
Filippo Randelli, Unità Operativa di Ortopedia e Traumatologia V, IRCCS Policlinico San Donato, 20097 San Donato Milanese, Italy
Luca Maria Sconfienza, Unità Operativa di Radiologia/Diagnostica per Immagini con Servizio di Radiologia Interventistica, IRCCS Istituto Ortopedico Galeazzi, 20161 Milano, Italy
Pietro Randelli, Unità Operativa Complessa, I Divisione, Istituto Ortopedico Gaetano Pini, 20122 Milano, Italy
Author contributions: Aliprandi A, Arrigoni P, Randelli F, Sardanelli F and Randelli P designed the research and substantially contributed to study conception; Messina C, Bandirali M, Magnani S, Mattiuz C and Sdao S acquired the data and performed the research; Di Leo G and Longo S contributed to study design and data interpretation/analysis; Messina C, Bandirali M, Magnani S, Mattiuz C and Sdao S drafted the article; Aliprandi A, Arrigoni P, Randelli F, Sardanelli F and Sconfienza LM made critical revision related to important content of the manuscript; all authors approved the final version of the manuscript to be published.
Institutional review board statement: The study was reviewed and approved by the Comitato Etico ASL Milano Due Institutional Review Board.
Informed consent statement: Informed consent was waived from Institutional Review Board.
Conflict-of-interest statement: All authors declare no conflicts of interest.
Data sharing statement: Technical appendix, statistical code, and dataset available from the corresponding author at (io@lucasconfienza.it). Consent was not obtained but the presented data are anonymized and risk of identification is low.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Dr. Luca Maria Sconfienza, Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Via Mangiagalli 31, 20139 Milano, Italy. io@lucasconfienza.it
Telephone: +39-02-66214497
Received: August 24, 2016
Peer-review started: August 24, 2016
First decision: October 20, 2016
Revised: December 12, 2016
Accepted: January 2, 2017
Article in press: January 3, 2017
Published online: March 28, 2017
Core Tip

Core tip: In the present study we determined the diagnostic performance of magnetic resonance arthrography (MRA) in evaluating rotator cuff tears (RCTs) using Snyder’s classification for reporting. One hundred and twenty-six patients underwent MRA and arthroscopy, which represented our reference standard. Agreement between arthroscopy and MRA on partial- and full-thickness tears was calculated. Arthroscopy findings: 71/126 patients (56%) had a full-thickness RCTs, while 55/126 patients (44%) had a partial-thickness RCTs. MRA showed high diagnostic accuracy and reproducibility in evaluating RCTs using the Snyder’s classification for reporting. Snyder’s classification may be adopted for routine reporting of MRA.