Arnlaug Wangensteen1,2, Roald Bahr1,2, Robbart Van Linschoten1, Emad Almusa1, Rodney Whiteley1, Erik Witvrouw1,3, Johannes L Tol1,4,5. 1. Aspetar, Orthopaedic and Sports Medicine Hospital, Doha, Qatar. 2. Department of Sports Medicine, Oslo Sports Trauma Research Center, Norwegian School of Sport Sciences, Oslo, Norway. 3. Faculty of Medicine and Health Sciences, Department Rehabilitation Science and Physiotherapy, Ghent University, Belgium. 4. Amsterdam Center for Evidence Based Medicine, Academic Medical Center, Amsterdam, The Netherlands. 5. Sports Medicine Department, OLVG, Amsterdam, The Netherlands.
Abstract
BACKGROUND: The optimal timing of MRI following acute hamstring injury is not known and is mainly based on expert opinions. AIMS: To describe the day-to-day changes in the extent of oedema and investigate the optimal timing for detection of fibre disruption on MRI following acute hamstring injuries. STUDY DESIGN: Prospective, descriptive study. METHODS: We performed standardised MRI (1.5T) ≤1 day after injury in male athletes with acute hamstring injury. If initial MRI revealed positive signs of injury (increased signal intensity on fluid sensitive sequences), consecutive MRIs were obtained daily throughout the subsequent week (ie, 7 times). The MRI parameters (day 1-7) were scored by a single radiologist using a standardised scoring form. The day-to-day changes in the extent of oedema (distance from tuber, craniocaudal length, mediolateral width and anteroposterior depth) and the presence and extent of fibre disruption (tear) were assessed with descriptive statistics and repeated measures using analysis of variance of log-transformed data. The overall main effect for time was reported with a significance level set at p<0.05. RESULTS: 13 out of 132 male athletes assessed for eligibility between January 2014 and December 2015 were included. 1 dropped out, while 12 (31 years, range 20-49) completed the study; 11 had 7 MRI scans each and one had 5 MRI scans performed. There were no significant day-to-day changes for any of the extent of oedema measures (p values ranging from 0.12 to 0.81). Fibre disruption (tear), present in 5 of the athletes, was detectable from day 1, with small and insignificant day-to-day changes (p values ranging from 0.45 to 0.95). CONCLUSIONS: We observed insignificant day-to-day changes in the extent of oedema throughout the first week following acute hamstring injury. Fibre disruption (tear) was detectable from the first day after injury. These findings indicate that MRI can be performed on any day during the first week following an acute (hamstring) muscle injury. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.
BACKGROUND: The optimal timing of MRI following acute hamstring injury is not known and is mainly based on expert opinions. AIMS: To describe the day-to-day changes in the extent of oedema and investigate the optimal timing for detection of fibre disruption on MRI following acute hamstring injuries. STUDY DESIGN: Prospective, descriptive study. METHODS: We performed standardised MRI (1.5T) ≤1 day after injury in male athletes with acute hamstring injury. If initial MRI revealed positive signs of injury (increased signal intensity on fluid sensitive sequences), consecutive MRIs were obtained daily throughout the subsequent week (ie, 7 times). The MRI parameters (day 1-7) were scored by a single radiologist using a standardised scoring form. The day-to-day changes in the extent of oedema (distance from tuber, craniocaudal length, mediolateral width and anteroposterior depth) and the presence and extent of fibre disruption (tear) were assessed with descriptive statistics and repeated measures using analysis of variance of log-transformed data. The overall main effect for time was reported with a significance level set at p<0.05. RESULTS: 13 out of 132 male athletes assessed for eligibility between January 2014 and December 2015 were included. 1 dropped out, while 12 (31 years, range 20-49) completed the study; 11 had 7 MRI scans each and one had 5 MRI scans performed. There were no significant day-to-day changes for any of the extent of oedema measures (p values ranging from 0.12 to 0.81). Fibre disruption (tear), present in 5 of the athletes, was detectable from day 1, with small and insignificant day-to-day changes (p values ranging from 0.45 to 0.95). CONCLUSIONS: We observed insignificant day-to-day changes in the extent of oedema throughout the first week following acute hamstring injury. Fibre disruption (tear) was detectable from the first day after injury. These findings indicate that MRI can be performed on any day during the first week following an acute (hamstring) muscle injury. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.
Authors: Scott K Crawford; Christa M Wille; Mikel R Stiffler-Joachim; Kenneth S Lee; Greg R Bashford; Bryan C Heiderscheit Journal: BMC Med Imaging Date: 2021-12-10 Impact factor: 1.930
Authors: Gian Nicola Bisciotti; Piero Volpi; Maurizio Amato; Giampietro Alberti; Francesco Allegra; Alessandro Aprato; Matteo Artina; Alessio Auci; Corrado Bait; Gian Matteo Bastieri; Luca Balzarini; Andrea Belli; Gianandrea Bellini; Pierfrancesco Bettinsoli; Alessandro Bisciotti; Andrea Bisciotti; Stefano Bona; Lorenzo Brambilla; Marco Bresciani; Michele Buffoli; Filippo Calanna; Gian Luigi Canata; Davide Cardinali; Giulia Carimati; Gabriella Cassaghi; Enrico Cautero; Emanuele Cena; Barbara Corradini; Alessandro Corsini; Cristina D'Agostino; Massimo De Donato; Giacomo Delle Rose; Francesco Di Marzo; Francesco Di Pietto; Drapchind Enrica; Cristiano Eirale; Luigi Febbrari; Paolo Ferrua; Andrea Foglia; Alberto Galbiati; Alberto Gheza; Carlo Giammattei; Francesco Masia; Gianluca Melegati; Biagio Moretti; Lorenzo Moretti; Roberto Niccolai; Antonio Orgiani; Claudio Orizio; Andrea Pantalone; Federica Parra; Paolo Patroni; Maria Teresa Pereira Ruiz; Marzio Perri; Stefano Petrillo; Luca Pulici; Alessandro Quaglia; Luca Ricciotti; Francesco Rosa; Nicola Sasso; Claudio Sprenger; Chiara Tarantola; Fabio Gianpaolo Tenconi; Fabio Tosi; Michele Trainini; Agostino Tucciarone; Ali Yekdah; Zarko Vuckovic; Raul Zini; Karim Chamari Journal: BMJ Open Sport Exerc Med Date: 2018-05-24