Analysis of MR Imaging of the Injured Posterior Cruciate Ligament

DOI
  • Hayashi Tomoki
    Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
  • Abe Nobuhiro
    Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
  • Yoshitaka Teruhito
    Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
  • Sakoma Yoshimasa
    Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
  • Date Hirokazu
    Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences
  • Ozaki Toshifumi
    Department of Orthopaedic Surgery, Science of Functional Recovery and Reconstruction, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences

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Other Title
  • MRI 画像による後十字靭帯損傷膝の修復過程の解析

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Description

We analyzed the healing of the posterior cruciate ligament (PCL) using magnetic resonance imaging (MRI) in a 42-year-old man with PCL injury. He was treated nonoperatively and was able to return to his daily activities without complications. MRI scan was performed at the time of injury, and at 1 month, 2 months, 7 months and 14 months thereafter. The follow-up examinations revealed that the PCL fibers had changed gradually from high signal intensity to low signal intensity on T2-weighted MRI, and continuity of the ligament was evident at 14 months. However, we suspected that the healing process was not complete, because the posterior capsule still showed high signal intensity on T2-weighted MRI. A check-up confirmed that the improvement of posterior stabilization was insufficient. It is suggested that additional examinations are necessary for further evaluation of the PCL substance and secondary restraint structures such as the joint capsule.

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