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Magnetic resonance imaging evaluation after re-notchplasty at second-look arthroscopy
Takeshi Kanamiya1, Michiya Hara, Masatoshi Naito
1Department of Orthopaedic Surgery, Fukuoka University School of Medicine, Fukuoka, Japan. Akanamiya@aol.com
Purpose:
To clarify the effects of re-notchplasty on magnetic resonance imaging (MRI) for evaluating the reconstructed anterior cruciate ligament (ACL).
Type Of Study:
Observational cohort study.
Methods:
Twenty-one patients who underwent re-notchplasty at second-look arthroscopy were examined. The MRI findings of the reconstructed ACL were classified as having either high, intermediate, or low intensity based on the clarity of appearance.
Results:
The impinged group at second-look arthroscopy underwent re-notchplasty. Twelve patients continued to show a high signal intensity that did not decrease after re-notchplasty at the second-look operation. In contrast, 9 impinged ACL grafts showed a decreased signal intensity of the graft after re-notchplasty.
Conclusions:
In this study, 9 cases showed a decreased intensity and were considered to have an impingement at the notch, which thus influenced the maturity process by decreasing the compression on the reconstructed ACL.