膝屈筋けんを用いたＡＣＬ再建術後の骨孔内のＭＲＩ所見について

DOI 被引用文献2件 参考文献9件

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  • Magnetic Resonance Imaging of Periligamentous Tissues in Tibial Bone Tunnels after Anterior Cruciate Ligament Reconstruction with Hamstring Autografts.

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We performed a prospective study to evaluate serial changes in the magnetic resonance imaging (MRI) appearance of periligamentous tissues in tibial bone tunnels after anterior cruciate ligament (ACL) reconstruction with hamstring autografts. Thirty-six knees in 36 patients were examined by MRI at 6, 12, 24, 48 weeks after ACL reconstruction. Periligamentous tissue between the graft and bone tunnel mainly showed high signal intensity, and a part of the periligamentous tissue showed low signal at 6 weeks. Most of the periligamentous tissue still showed high signal intensity at 12 weeks, but the intensity was lower than that at 6 weeks. The low intensity area included in the periligamentous tissue increased. A band-shaped low signal intensity area was observed in the periligamentous tissue around the graft at 24 weeks, the thickness of which increased at 48 weeks. The MRI results suggest that in most patients, the maturation of the tendon-bone interface occurs until 24 weeks after the ACL reconstruction.

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