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Abstract #1425

MR based changes in normal ACL hamstring graft over two years following reconstruction

Fan Xiao1, Jacky Ka Long Ko1, Alex Wing Hung Ng1, Jason Chi Shun Leung2, David Ka Wai Yeung1, Patrick, Shu Hang Yung3, and James Griffith1

1Imaging and Interventional Radiology, The Chinese University of Hong Kong, Hong Kong, Hong Kong, 2Jockey Club Centre for Osteoporosis Care and Control, The Chinese University of Hong Kong, Hong Kong, Hong Kong, 3Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, Hong Kong

This study investigates that normal changes seen on MRI of the ACL graft over first two years after reconstruction. The graft and perigraft tissues were assessed on serial MRI examinations addressing features such as graft size, signal intensity and perfusion. MR changes were compatible with the histological process known as changes in the ACL graft, usually called ‘ligamentization of the graft’ seems to have stabilized by 24 months.

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