OBJECTIVE: The purpose of this study was to evaluate ulnar collateral ligament (UCL) injury of the elbow in throwing athletes by MRI and MR arthrography. DESIGN: Ten elbows of throwing athletes were examined on both plain MRI and MR saline arthrography and the injuries subsequently surgically proven. Spin-echo (SE) T1-weighted and fast SE T2-weighted coronal images were obtained. RESULTS: The UCL was unclear in all ten cases on T1-weighted MRI. In five cases an avulsion fracture was also found on T1-weighted MRI. On T2-weighted MRI, abnormal high-intensity areas were identified in or around the UCL. On T2-weighted MR arthrography images, extracapsular high-intensity areas, which represent extracapsular leakage, were found in four of five cases with avulsion fracture. At surgery, all these four cases showed avulsion fractures with instability; the other case had a fracture but it was stable and adherent to the humerus. On T2-weighted MR arthrography images, an extracapsular high-intensity area was found in one of the five cases without avulsion fracture. At surgery this patient had a complete tear of the UCL itself. CONCLUSION: MR arthrography provided additional information for evaluating the degree of UCL injury.
OBJECTIVE: The purpose of this study was to evaluate ulnar collateral ligament (UCL) injury of the elbow in throwing athletes by MRI and MR arthrography. DESIGN: Ten elbows of throwing athletes were examined on both plain MRI and MR saline arthrography and the injuries subsequently surgically proven. Spin-echo (SE) T1-weighted and fast SE T2-weighted coronal images were obtained. RESULTS: The UCL was unclear in all ten cases on T1-weighted MRI. In five cases an avulsion fracture was also found on T1-weighted MRI. On T2-weighted MRI, abnormal high-intensity areas were identified in or around the UCL. On T2-weighted MR arthrography images, extracapsular high-intensity areas, which represent extracapsular leakage, were found in four of five cases with avulsion fracture. At surgery, all these four cases showed avulsion fractures with instability; the other case had a fracture but it was stable and adherent to the humerus. On T2-weighted MR arthrography images, an extracapsular high-intensity area was found in one of the five cases without avulsion fracture. At surgery this patient had a complete tear of the UCL itself. CONCLUSION: MR arthrography provided additional information for evaluating the degree of UCL injury.
Authors: Hugue Ouellette; Miriam Bredella; John Labis; William E Palmer; Martin Torriani Journal: Skeletal Radiol Date: 2007-09-06 Impact factor: 2.199
Authors: Alberto Bellelli; Enzo Silvestri; Antonio Barile; Domenico Albano; Alberto Aliprandi; Roberto Caudana; Vito Chianca; Francesco Di Pietto; Carlo Faletti; Eugenio Genovese; Andrea Giovagnoni; Carlo Masciocchi; Carmelo Messina; Luca Maria Sconfienza; Vincenzo Spina; Marcello Zappia Journal: Radiol Med Date: 2019-01-28 Impact factor: 3.469
Authors: Filippo Del Grande; Michael Aro; Sahar Jalali Farahani; John Wilckens; Andrew Cosgarea; John A Carrino Journal: Skeletal Radiol Date: 2014-10-10 Impact factor: 2.199
Authors: Florian M Buck; Cristiane S Zoner; Fabiano Cardoso; Ramon Gheno; Marcelo A C Nico; Debra J Trudell; Tori D Randall; Donald Resnick Journal: Skeletal Radiol Date: 2009-10-10 Impact factor: 2.199