start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=2
article-no=
start-page=361
end-page=368
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=20180924
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Meniscal repair concurrent with anterior cruciate ligament reconstruction restores posterior shift of the medial meniscus in the knee-flexed position
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=PURPOSE:<br/>
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.<br/>
METHODS:<br/>
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.<br/>
RESULTS:<br/>
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.<br/>
CONCLUSIONS:<br/>
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.
en-copyright=
kn-copyright=

en-aut-name=OkazakiYoshiki
en-aut-sei=Okazaki
en-aut-mei=Yoshiki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=FurumatsuTakayuki
en-aut-sei=Furumatsu
en-aut-mei=Takayuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=MiyazawaShinichi
en-aut-sei=Miyazawa
en-aut-mei=Shinichi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=KodamaYuya
en-aut-sei=Kodama
en-aut-mei=Yuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=KamatsukiYusuke
en-aut-sei=Kamatsuki
en-aut-mei=Yusuke
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=HinoTomohito
en-aut-sei=Hino
en-aut-mei=Tomohito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=MasudaShin
en-aut-sei=Masuda
en-aut-mei=Shin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=OzakiToshifumi
en-aut-sei=Ozaki
en-aut-mei=Toshifumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=

affil-num=1
en-affil=Department of Orthopaedic Surgery, Okayama University Graduate School
kn-affil=

affil-num=2
en-affil=Department of Orthopaedic Surgery, Okayama University Graduate School
kn-affil=

affil-num=3
en-affil=Department of Orthopaedic Surgery, Okayama University Graduate School
kn-affil=

affil-num=4
en-affil=Department of Orthopaedic Surgery, Okayama University Graduate School
kn-affil=

affil-num=5
en-affil=Department of Orthopaedic Surgery, Okayama University Graduate School
kn-affil=

affil-num=6
en-affil=Department of Orthopaedic Surgery, Okayama University Graduate School
kn-affil=

affil-num=7
en-affil=Department of Orthopaedic Surgery, Okayama University Graduate School
kn-affil=

affil-num=8
en-affil=Department of Orthopaedic Surgery, Okayama University Graduate School
kn-affil=
en-keyword=Anterior cruciate ligament reconstruction
kn-keyword=Anterior cruciate ligament reconstruction
en-keyword=Flexed-knee position
kn-keyword=Flexed-knee position
en-keyword=Medial meniscus
kn-keyword=Medial meniscus
en-keyword=Meniscal repair
kn-keyword=Meniscal repair
en-keyword=Open magnetic resonance imaging
kn-keyword=Open magnetic resonance imaging
en-keyword=Posterior shift
kn-keyword=Posterior shift
END