Andreas Serner1,2, Frank W Roemer3,4, Per Hölmich5,6, Kristian Thorborg6, Jingbo Niu7, Adam Weir5, Johannes L Tol5,8,9, Ali Guermazi4. 1. Aspetar, Orthopaedic and Sports Medicine Hospital, Sports City Street, P.O. Box 29222, Doha, Qatar. Andreas.serner@aspetar.com. 2. Sports Orthopaedic Research Center-Copenhagen (SORC-C), Department of Orthopedic Surgery, Copenhagen University Hospital, Amager-Hvidovre, Denmark. Andreas.serner@aspetar.com. 3. Department of Radiology, University of Erlangen-Nuremberg, Erlangen, Germany. 4. Quantitative Imaging Center (QIC), Department of Radiology, Boston University School of Medicine, Boston, MA, USA. 5. Aspetar, Orthopaedic and Sports Medicine Hospital, Sports City Street, P.O. Box 29222, Doha, Qatar. 6. Sports Orthopaedic Research Center-Copenhagen (SORC-C), Department of Orthopedic Surgery, Copenhagen University Hospital, Amager-Hvidovre, Denmark. 7. Clinical Epidemiology and Training Unit, Department of Medicine, Boston University School of Medicine, Boston, MA, USA. 8. The Sports Physician Group, Department of Sports Medicine, OLVG West, Amsterdam, The Netherlands. 9. Amsterdam Center of Evidence Based Sports Medicine, Academic Medical Center, Amsterdam, The Netherlands.
Abstract
OBJECTIVES: To describe a multi-dimensional MRI assessment approach with a focus on acute musculotendinous groin lesions, and to evaluate scoring reproducibility. METHODS: Male athletes who participated in competitive sports and presented within 7 days of an acute onset of sports-related groin pain were included. All athletes underwent MRI (1.5 T) according to a standardized groin-centred protocol. From several calibration sessions, a system was developed assessing grade, location and extent of muscle strains, peri-lesional haematoma, as well as other non-acute findings commonly associated with long-standing groin pain. Kappa (K) statistics and intraclass correlation coefficients (ICCs) were used to describe intra- and inter-rater reproducibility. RESULTS: Seventy-five athletes (mean age 26.6 ± 4.4 years) were included in the analyses, and 85 different acute lesions were observed. Adductor longus lesions were most common (42.7 %) followed by rectus femoris lesions (16.3 %). Kappa values ranged between 0.70 and 1.00 for almost all categorical features for acute lesions, with almost perfect intra- and inter-rater agreement (K = 0.89-1.00) for presence, number, location and grading of lesions. ICCs ranged between 0.77 and 1.00 for continuous measures of acute lesion extent. CONCLUSIONS: A standardized MRI assessment approach of acute groin injuries was described and showed good intra- and inter-rater reproducibility. KEY POINTS: • A multidimensional MRI assessment approach for acute groin injuries was described. • Standardized MRI assessment of acute musculotendinous groin injuries has high reproducibility. • Injury location and injury extent can be scored reliably using 1.5 T MRI.
OBJECTIVES: To describe a multi-dimensional MRI assessment approach with a focus on acute musculotendinous groin lesions, and to evaluate scoring reproducibility. METHODS: Male athletes who participated in competitive sports and presented within 7 days of an acute onset of sports-related groin pain were included. All athletes underwent MRI (1.5 T) according to a standardized groin-centred protocol. From several calibration sessions, a system was developed assessing grade, location and extent of muscle strains, peri-lesional haematoma, as well as other non-acute findings commonly associated with long-standing groin pain. Kappa (K) statistics and intraclass correlation coefficients (ICCs) were used to describe intra- and inter-rater reproducibility. RESULTS: Seventy-five athletes (mean age 26.6 ± 4.4 years) were included in the analyses, and 85 different acute lesions were observed. Adductor longus lesions were most common (42.7 %) followed by rectus femoris lesions (16.3 %). Kappa values ranged between 0.70 and 1.00 for almost all categorical features for acute lesions, with almost perfect intra- and inter-rater agreement (K = 0.89-1.00) for presence, number, location and grading of lesions. ICCs ranged between 0.77 and 1.00 for continuous measures of acute lesion extent. CONCLUSIONS: A standardized MRI assessment approach of acute groin injuries was described and showed good intra- and inter-rater reproducibility. KEY POINTS: • A multidimensional MRI assessment approach for acute groin injuries was described. • Standardized MRI assessment of acute musculotendinous groin injuries has high reproducibility. • Injury location and injury extent can be scored reliably using 1.5 T MRI.
Authors: Christopher R Hancock; Timothy G Sanders; Michael B Zlatkin; Paul D Clifford; Deborah Pevsner Journal: Clin Imaging Date: 2009 Mar-Apr Impact factor: 1.605
Authors: Michel D Crema; Ali Guermazi; Johannes L Tol; Jingbo Niu; Bruce Hamilton; Frank W Roemer Journal: J Sci Med Sport Date: 2015-04-15 Impact factor: 4.319
Authors: Sonia Branci; Kristian Thorborg; Birthe Højlund Bech; Mikael Boesen; Michael Bachmann Nielsen; Per Hölmich Journal: Br J Sports Med Date: 2014-12-15 Impact factor: 13.800
Authors: Gustaaf Reurink; Gert Jan Goudswaard; Johannes L Tol; Emad Almusa; Maarten H Moen; Adam Weir; Jan A N Verhaar; Bruce Hamilton; Mario Maas Journal: Br J Sports Med Date: 2013-11-19 Impact factor: 13.800
Authors: Andreas Serner; Adam Weir; Johannes L Tol; Kristian Thorborg; Sean Lanzinger; Roald Otten; Per Hölmich Journal: Orthop J Sports Med Date: 2020-01-29