このエントリーをはてなブックマークに追加
ID 57573
フルテキストURL
Thumnail Figs.pdf 1.06 MB
Thumnail Table.pdf 206 KB
著者
Okazaki, Yoshiki Department of Orthopaedic Surgery, Okayama University Graduate School
Furumatsu, Takayuki Department of Orthopaedic Surgery, Okayama University Graduate School Kaken ID
Miyazawa, Shinichi Department of Orthopaedic Surgery, Okayama University Graduate School
Kodama, Yuya Department of Orthopaedic Surgery, Okayama University Graduate School
Kamatsuki, Yusuke Department of Orthopaedic Surgery, Okayama University Graduate School
Hino, Tomohito Department of Orthopaedic Surgery, Okayama University Graduate School
Masuda, Shin Department of Orthopaedic Surgery, Okayama University Graduate School
Ozaki, Toshifumi Department of Orthopaedic Surgery, Okayama University Graduate School Kaken ID
抄録
PURPOSE:
The purpose of this study was to evaluate the shape and shift of the medial meniscus before and after meniscal repair concurrent with anterior cruciate ligament (ACL) reconstruction using magnetic resonance imaging (MRI) at 90° of knee flexion.
METHODS:
This study included 18 patients with ACL-deficient knees without meniscus tears (group A), 11 patients with medial meniscus tears alone (group M), and 15 patients with ACL-deficient knees complicated with medial meniscus tears (group AM). The posterior segment shape was evaluated using open MRI at 90° of knee flexion preoperatively and at 3 months postoperatively. The length, height, width, and posterior extrusion of the medial meniscus and posterior tibiofemoral distance were measured. These measurements were compared between the three groups.
RESULTS:
On preoperative MRI, a significant difference was observed in the posterior extrusion of the medial meniscus (group A, 1.2 ± 0.5 mm; group M, 1.7 ± 0.3 mm; group AM, 4.1 ± 1.5 mm, p < 0.001). All parameters did not differ between the three groups on postoperative MRI. In addition, the posterior width and extrusion of the medial meniscus were decreased significantly after meniscal repair concurrent with ACL reconstruction.
CONCLUSIONS:
This study demonstrated that the medial meniscus shifted posteriorly at 90° of knee flexion in ACL-deficient knees complicated with medial meniscus tears. Medial meniscal repair concurrent with ACL reconstruction improved the deformed morphology and posterior extrusion. MRI measurements of the posterior extrusion at the knee-flexed position may be clinically useful to assess the functional improvement of the medial meniscus following meniscal repair combined with ACL reconstruction.
キーワード
Anterior cruciate ligament reconstruction
Flexed-knee position
Medial meniscus
Meniscal repair
Open magnetic resonance imaging
Posterior shift
発行日
2018-09-24
出版物タイトル
Knee Surgery, Sports Traumatology, Arthroscopy
27巻
2号
出版者
Springer
開始ページ
361
終了ページ
368
ISSN
0942-2056
NCID
AA10973641
資料タイプ
学術雑誌論文
言語
English
OAI-PMH Set
岡山大学
論文のバージョン
author
PubMed ID
DOI
Web of Science KeyUT
関連URL
isVersionOf https://doi.org/10.1007/s00167-018-5157-2
Citation
Okazaki, Y., Furumatsu, T., Miyazawa, S. et al. Meniscal repair concurrent with anterior cruciate ligament reconstruction restores posterior shift of the medial meniscus in the knee-flexed position. Knee Surg Sports Traumatol Arthrosc 27, 361–368 (2019) doi:10.1007/s00167-018-5157-2