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Correlation between the mid-substance cross-sectional anterior cruciate ligament size and the knee osseous morphology

Introduction One of the final goals of anatomical anterior cruciate ligament (ACL) reconstruction is the restoration of native anatomy. It is essential to obtain more accurate predictors of mid-substance ACL size before surgery. However, to the best of our knowledge, no study has reported correlatio...

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Published in:European journal of orthopaedic surgery & traumatology 2020-02, Vol.30 (2), p.291-296
Main Authors: Yahagi, Yoshiyuki, Horaguchi, Takashi, Iriuchishima, Takanori, Suruga, Makoto, Iwama, Genki, Aizawa, Shin
Format: Article
Language:English
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Summary:Introduction One of the final goals of anatomical anterior cruciate ligament (ACL) reconstruction is the restoration of native anatomy. It is essential to obtain more accurate predictors of mid-substance ACL size before surgery. However, to the best of our knowledge, no study has reported correlation between the mid-substance cross-sectional ACL size and the knee osseous morphology. The purpose of this study was to reveal correlation between the mid-substance cross-sectional ACL size and the knee osseous morphology. Materials and methods We used 39 non-paired formalin fixed Japanese cadaveric knees. All surrounding muscles, ligaments and soft tissues in the knee were resected. After soft tissue resection, the knee was flexed at 90°, and a tangential plane of the femoral posterior condyles was marked and cut the ACL. Femoral ACL footprint size, Blumensaat’s line length, lateral wall of the femoral intercondylar notch size, lateral wall of the femoral intercondylar notch height, tibial ACL footprint size, tibia plateau size, the whole anterior–posterior (AP) length, the medial and the lateral AP length of the tibia plateau, and the medial–lateral (ML) length of the tibia plateau were measured. The Pearson’s product movement correlation was calculated to reveal correlation between the mid-substance cross-sectional ACL size and the measured parameters of the knee osseous morphology. Results The measured mid-substance cross-sectional ACL size was 49.9 ± 16.3 mm 2 . The tibial ACL footprint size, the tibia plateau size, the whole AP length of the tibia plateau, the lateral AP length of the tibia plateau and the ML length of the tibia plateau were significantly correlated with the mid-substance cross-sectional ACL size. Conclusions For clinical relevance, some tibial sides of the knee osseous morphology were significantly correlated with the mid-substance cross-sectional ACL size. It might be possible to predict the mid-substance ACL size measuring these parameters.
ISSN:1633-8065
1432-1068
DOI:10.1007/s00590-019-02552-x