PURPOSE: The purpose was to observe the changing MR appearance of stable anterior cruciate ligament (ACL) grafts on oblique axial images. METHOD: Fifty-five knees in 44 patients were studied with MRI 1-54 months after arthroscopic ACL reconstruction with double-looped autogenous semitendinosus and gracilis tendons. Knees with poor stability were excluded from this study. Examinations were performed at 0.2 T with SE proton density and T2-weighted sagittal and oblique axial images. RESULTS: High signal intensity areas covered the grafts 1-3 months after surgery. The high signal subsequently extended into the intertendinous bundles. The entire graft gradually became a low signal intensity bundle again after 12 months. Grafts were classified by their appearance on the oblique axial images. CONCLUSION: We conclude that high signal intensity can be seen within stable ACL grafts.
PURPOSE: The purpose was to observe the changing MR appearance of stable anterior cruciate ligament (ACL) grafts on oblique axial images. METHOD: Fifty-five knees in 44 patients were studied with MRI 1-54 months after arthroscopic ACL reconstruction with double-looped autogenous semitendinosus and gracilis tendons. Knees with poor stability were excluded from this study. Examinations were performed at 0.2 T with SE proton density and T2-weighted sagittal and oblique axial images. RESULTS: High signal intensity areas covered the grafts 1-3 months after surgery. The high signal subsequently extended into the intertendinous bundles. The entire graft gradually became a low signal intensity bundle again after 12 months. Grafts were classified by their appearance on the oblique axial images. CONCLUSION: We conclude that high signal intensity can be seen within stable ACL grafts.
Authors: James S Starman; Corinne Vanbeek; Derek R Armfield; Amit Sahasrabudhe; Champ L Baker; James J Irrgang; Freddie H Fu Journal: Knee Surg Sports Traumatol Arthrosc Date: 2007-01-16 Impact factor: 4.342
Authors: Alex Wing Hung Ng; James F Griffith; Kan Yip Law; James W M Ting; George L Tipoe; Anil T Ahuja; Kai Ming Chan Journal: Skeletal Radiol Date: 2011-06-04 Impact factor: 2.199
Authors: Motoko Miyawaki; Daniel Hensler; Kenneth D Illingworth; James J Irrgang; Freddie H Fu Journal: Knee Surg Sports Traumatol Arthrosc Date: 2014-01-29 Impact factor: 4.342
Authors: Pieter Van Dyck; Katja Zazulia; Céline Smekens; Christiaan H W Heusdens; Thomas Janssens; Jan Sijbers Journal: Orthop J Sports Med Date: 2019-06-03