Magnetic Resonance Imaging of Reconstructed Anterior Cruciate Ligament.

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  • 骨付き膝蓋けんによる再建ＡＣＬのＭＲＩ評価

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We evaluated the reconstructed anterior cruciate ligament (ACL) using bone-patellar tendon-bone by Magnetic Resonance Imaging (MRI).<br>From 1992 to 1997, 182 patients were underwent ACL reconstructive surgery using bone-patellar tendon-bone, in which 67 underwent MRI from 3 to 45 months postoperatively. We classified these patients into 3 groups by the intensity of the reconstructed ACL; low intensity, low+high intensity, and high intensity groups. Low intensity group was 40%, low +high intensity group was 45%, and high intensity group was 15%. The operated Knee function by KT-2000, Cybex, and JOA score did not differ between the 3 groups.<br>We performed a second look operation on 22, and compared the inspection of the reconstructed ACL with the results of the MRI in low intensity group, reconstructed ACL was looked to be more excellent, but some was excellent even in high group. The high intensity in the reconstructed ACL by MRI is thought to appear by the impingement of the roof of the intercondylar notch on a reconstructed ACL. In our cases, we consider from the comparison to the inspection by the second look operation, all high intensity were not for impingement. So it is difficult to evaluate the quality of the reconstructed ACL by MRI, but at least, in low intensity group reconstructed ACL is thought to be in good quality.

Journal

  • Orthopedics & Traumatology

    Orthopedics & Traumatology 48 (4), 1259-1263, 1999

    West-Japanese Society of Orthopedics & Traumatology

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