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The effect of intraosseous graft length on tendon-bone healing in anterior cruciate ligament reconstruction using flexor tendon.

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タイトル: The effect of intraosseous graft length on tendon-bone healing in anterior cruciate ligament reconstruction using flexor tendon.
著者: Yamazaki, S. 著作を一覧する
Yasuda, K. 著作を一覧する
Tomita, F. 著作を一覧する
Minami, A. 著作を一覧する
Tohyama, Harukazu 著作を一覧する
キーワード: Anterior cruciate ligament reconstruction
Intraosseous graft length
Flexor tendon graft
Anchoring strength
Intraosseous graft healing
発行日: 2006年11月
出版者: Springer
誌名: Knee Surgery, Sports Traumatology, Arthroscopy
巻: 14
号: 11
開始ページ: 1086
終了ページ: 1093
出版社 DOI: 10.1007/s00167-006-0110-1
抄録: The current study was performed to understand the relationship between graft length placed within the bone tunnel and intraosseous graft healing in anterior cruciate ligament (ACL) reconstruction. Twenty-four adult beagle dogs were divided into two groups of 12 animals each. In each animal, ACL reconstruction using a 4-mm diameter autogenous flexor tendon graft was done in the left knee. In groups I and II, the graft having a length of 15 and 5 mm, respectively, was placed within the tibial tunnel. The proximal end of the graft was placed through the over-the-top route in all animals. In each group, five animals were sacrificed immediately after surgery, and the remaining seven were sacrificed at 6 weeks postoperatively. Biomechanical and histologic evaluations were performed. In pull out testing, the ultimate failure load and the linear stiffness of the graft-tibia complex harvested at 6 weeks were significantly greater than those harvested at the time-zero period. There were no significant differences in those parameters between groups I and II at 6 weeks. In each group, the perpendicular collagen fibers connecting the tendon to the bone tunnel wall were observed only in the narrow area located close to the intra-articular tunnel outlet. In conclusion, excessively long placement of the flexor graft within the bone tunnel does not result in an additional increase of anchoring strength and stiffness of the graft in ACL reconstruction.
Rights: The original publication is available at www.springerlink.com
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/16893
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 安田 和則

 

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