FullText URL OTSR105_1_107.pdf Fig.pdf
Author Furumatsu, Takayuki| Okazaki, Yuki| Okazaki, Yoshiki| Hino, Tomohito| Kamatsuki, Yusuke| Masuda, Shin| Miyazawa, Shinichi| Nakata, Eiji| Hasei, Joe| Kunisada, Toshiyuki| Ozaki, Toshifumi|
Keywords Descending knee motion Injury pattern Medial meniscus Posterior root tear Squatting
Published Date 2019-02-28
Publication Title Orthopaedics & Traumatology: Surgery & Research
Volume volume105
Issue issue1
Publisher Elsevier
Start Page 107
End Page 111
ISSN 18770568
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
File Version author
PubMed ID 30442555
DOI 10.1016/j.otsr.2018.10.001
Web of Science KeyUT 000456541300018
Related Url isVersionOf https://doi.org/10.1016/j.otsr.2018.10.001
FullText URL OTSR105_1_113.pdf Fig.pdf
Author Okazaki, Yuki| Furumatsu, Takayuki| Kodama, Yuya| Hino, Tomohito| Kamatsuki, Yusuke| Okazaki, Yoshiki| Masuda, Shin| Miyazawa, Shinichi| Endo, Hirosuke| Tetsunaga, Tomonori| Yamada, Kazuki| Ozaki, Toshifumi|
Keywords Magnetic resonance imaging Medial meniscus Posterior root tear Tibial rotation Transtibial pullout repair
Published Date 2019-02-28
Publication Title Orthopaedics & Traumatology: Surgery & Research
Volume volume105
Issue issue1
Publisher Elsevier
Start Page 113
End Page 117
ISSN 18770568
Content Type Journal Article
language 日本語
OAI-PMH Set 岡山大学
File Version author
PubMed ID 30482466
DOI 10.1016/j.otsr.2018.10.005
Web of Science KeyUT 000456541300019
Related Url isVersionOf https://doi.org/10.1016/j.otsr.2018.10.005
FullText URL Knee26_3_653.pdf tables.pdf Fig.pdf
Author Furumatsu, Takayuki| Okazaki, Yuki| Kodama, Yuya| Okazaki, Yoshiki| Masuda, Shin| Kamatsuki, Yusuke| Takihira, Shota| Hiranaka, Takaaki| Yamawaki, Tadashi| Ozaki, Toshifumi|
Keywords Clinical outcome Medial meniscus Meniscal healing Posterior root tear Transtibial pullout repair
Published Date 2019-06-30
Publication Title The Knee
Volume volume26
Issue issue3
Publisher Elsevier
Start Page 653
End Page 659
ISSN 09680160
NCID AA10996272
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
Copyright Holders © 2019 Elsevier B.V. All rights reserved.
File Version author
PubMed ID 30902517
DOI 10.1016/j.knee.2019.02.007
Web of Science KeyUT 000474504500017
Related Url isVersionOf https://doi.org/10.1016/j.knee.2019.02.007
Author Hiranaka, Takaaki| Furumatsu, Takayuki| Kamatsuki, Yusuke| Sugiu, Kazuhisa| Okazaki, Yoshiki| Masuda, Shin| Okazaki, Yuki| Takihira, Shota| Miyazawa, Shinichi| Nakata, Eiji| Ozaki, Toshifumi|
Note This fulltext will be available in Nov 2020 |
Published Date 2019-08-20
Publication Title Journal of Orthopaedic Science
Volume volume24
Issue issue6
Publisher Elsevier
Start Page 1058
End Page 1063
ISSN 09492658
NCID AA11052566
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
Copyright Holders © 2019 The Japanese Orthopaedic Association. Published by Elsevier B.V. All rights reserved.
File Version author
PubMed ID 31444009
DOI 10.1016/j.jos.2019.08.001
Web of Science KeyUT 000496202800019
Related Url isVersionOf https://doi.org/10.1016/j.jos.2019.08.001
FullText URL IntOrthop_43_5_1239.pdf Tables.pdf Fig.pdf
Author Furumatsu, Takayuki| Miyazawa, Shinichi| Fujii, Masataka| Tanaka, Takaaki| Kodama, Yuya| Ozaki, Toshifumi|
Keywords Arthroscopic scoring Medial meniscus Meniscal healing Posterior root tear Transtibial pullout repair
Published Date 2018-08-01
Publication Title International Orthopaedics
Volume volume43
Issue issue5
Publisher Springer
Start Page 1239
End Page 1245
ISSN 03412695
NCID AA0068148X
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
File Version author
PubMed ID 30069591
DOI 10.1007/s00264-018-4071-z
Web of Science KeyUT 000466730800024
Related Url isVersionOf https://doi.org/10.1007/s00264-018-4071-z
FullText URL CTR_2019_1631298.pdf Fig.pdf
Author Hino, Tomohito| Furumatsu, Takayuki| Miyazawa, Shinichi| Fujii, Masataka| Kodama, Yuya| Kamatsuki, Yusuke| Okazaki, Yoshiki| Masuda, Shin| Okazaki, Yuki| Ozaki, Toshifumi|
Keywords Medial meniscus posterior insertion histological analysis knee osteoarthritis medial meniscus posterior root tear transtibial pullout repair
Published Date 2019-07-09
Publication Title Connective Tissue Research
Publisher TAYLOR & FRANCIS
ISSN 0300-8207
NCID AA00615033
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
File Version author
PubMed ID 31181971
DOI 10.1080/03008207.2019.1631298
Web of Science KeyUT 000478374800001
Related Url isVersionOf https://doi.org/10.1080/03008207.2019.1631298
FullText URL KSSTA27_2_361.pdf Figs.pdf Table.pdf
Author Okazaki, Yoshiki| Furumatsu, Takayuki| Miyazawa, Shinichi| Kodama, Yuya| Kamatsuki, Yusuke| Hino, Tomohito| Masuda, Shin| Ozaki, Toshifumi|
Keywords Anterior cruciate ligament reconstruction Flexed-knee position Medial meniscus Meniscal repair Open magnetic resonance imaging Posterior shift
Published Date 2018-09-24
Publication Title Knee Surgery, Sports Traumatology, Arthroscopy
Volume volume27
Issue issue2
Publisher Springer
Start Page 361
End Page 368
ISSN 0942-2056
NCID AA10973641
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
File Version author
PubMed ID 30251100
DOI 10.1007/s00167-018-5157-2
Web of Science KeyUT 000460315200005
Related Url isVersionOf https://doi.org/10.1007/s00167-018-5157-2
JaLCDOI 10.18926/AMO/57713
FullText URL 73_6_495.pdf
Author Masuda, Shin| Furumatsu, Takayuki| Okazaki, Yoshiki| Kamatsuki, Yusuke| Okazaki, Yuki| Kodama, Yuya| Hiranaka, Takaaki| Nakata, Eiji| Ozaki, Toshifumi|
Abstract Medial meniscus posterior root tear causes rapid knee cartilage degradation by inducing posteromedial displacement of the medial meniscus. We evaluated medial meniscus posterior extrusion before and after pullout repair for medial meniscus posterior root tear using magnetic resonance images. Twenty-eight patients with symptomatic medial meniscus posterior root tear were included. The inclusion criteria were: acute (< 3 months) or chronic (≥3 months) medial meniscus posterior root tear after painful popping events. The exclusion criteria were: other meniscus and anterior cruciate ligament injuries. We measured medial meniscus posterior extrusion and medial meniscus anteroposterior interval at knee flexion angles of 10° and 90° preoperatively and at 3 months postoperatively. The posterior extrusion at 90° knee flexion decreased from 4.42±1.38 mm preoperatively to 3.09±1.06 mm (p<0.001) postoperatively, while at 10° knee flexion it was −4.17±1.63 mm preoperatively and −3.77±1.72mm postoperatively, showing no significant change. The anteroposterior interval at 10° knee flexion increased from 19.74±4.27 mm preoperatively to 22.15±5.10 mm postoperatively (p<0.001); at 90° knee flexion, it increased from 16.81±4.51 mm preoperatively to 19.20±4.30 mm postoperatively (p<0.001). Medial meniscus posterior extrusion and movement decreased after pullout repair. Pullout repair for medial meniscus posterior root tear improves medial meniscus posterior extrusion, especially at 90° knee flexion.
Keywords medial meniscus posterior root tear pullout repair extrusion open magnetic resonance imaging
Amo Type Original Article
Published Date 2019-12
Publication Title Acta Medica Okayama
Volume volume73
Issue issue6
Publisher Okayama University Medical School
Start Page 495
End Page 501
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2019 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 31871331
Web of Science KeyUT 000503431400004
JaLCDOI 10.18926/AMO/57714
FullText URL 73_6_503.pdf
Author Kamatsuki, Yusuke| Furumatsu, Takayuki| Miyazawa, Shinichi| Kodama, Yuya| Hino, Tomohito| Okazaki, Yoshiki| Masuda, Shin| Okazaki, Yuki| Noda, Tomoyuki| Yamakawa, Yasuaki| Tetsunaga, Tomoko| Ozaki, Toshifumi|
Abstract Clinical studies have demonstrated that transtibial pullout repair led to favorable midterm outcomes in patients with medial meniscus posterior root tears (MMPRTs) although medial meniscal extrusion (MME) continued to be present. It has been unclear whether these residual postoperative MMEs existed after the pullout repair or had progressed at the very short-term evaluation after surgery. We sought to determine which characteristics of patients with MMPRTs influence the incidence of postoperative MME. The cases of 23 patients whose date of injury was known were analyzed. All patients underwent MMPRT pullout fixation. Preoperative and 3-month postoperative magnetic resonance imaging (MRI) examinations were performed. MME was retrospectively assessed on the mid-coronal plane of MRI scans. The preoperative and postoperative MME values were 4.2±1.2 mm and 4.3±1.5 mm, respectively (p=0.559). Pullout repair surgery was performed significantly earlier after the MMPRT-specific injury in patients whose postoperative MME improved compared to the patients whose MME did not improve (p<0.001). Our findings demonstrated that an early transtibial pullout repair of an MMPRT was more effective in reducing MME than a late repair. Surgeons should not miss the optimal timing for the pullout repair of an MMPRT, considering the period from the injury and the preoperative MME.
Keywords medial meniscus posterior root tear pullout repair medial meniscus extrusion magnetic resonance imaging
Amo Type Original Article
Published Date 2019-12
Publication Title Acta Medica Okayama
Volume volume73
Issue issue6
Publisher Okayama University Medical School
Start Page 503
End Page 510
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2019 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 31871332
Web of Science KeyUT 000503431400005
JaLCDOI 10.18926/AMO/57717
FullText URL 73_6_523.pdf
Author Hiranaka, Takaaki| Furumatsu, Takayuki| Okazaki, Yoshiki| Kamatsuki, Yusuke| Masuda, Shin| Okazaki, Yuki| Takihira, Shota| Miyazawa, Shinichi| Nakata, Eiji| Ozaki, Toshifumi|
Abstract The case of an individual with a bilateral anterior cruciate ligament (ACL) tear combined with a medial meniscus (MM) posterior root tear is described. A 34-year-old Japanese man with bilateral ACL rupture that occurred > 10 years earlier was diagnosed with bilateral ACL tear combined with MM posterior root tear (MMPRT). We performed a transtibial pullout repair of the MMPRT with ACL reconstruction. The tibial tunnels for the MM posterior root repair and ACL reconstruction were created separately. Postoperatively, a good clinical outcome and meniscal healing were obtained. Our surgical technique may thus contribute to anatomical MM posterior root repair and ACL reconstruction.
Keywords bilateral anterior cruciate ligament tear medial meniscus posterior root tear pullout repair case report
Amo Type Case Report
Published Date 2019-12
Publication Title Acta Medica Okayama
Volume volume73
Issue issue6
Publisher Okayama University Medical School
Start Page 523
End Page 528
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2019 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 31871335
Web of Science KeyUT 000503431400008
JaLCDOI 10.18926/AMO/57947
FullText URL 74_1_7.pdf
Author Sanki, Tomoaki| Endo, Hirosuke| Tetsunaga, Tomonori| Furumatsu, Takayuki| Yamada, Kazuki| Ozaki, Toshifumi|
Abstract We investigated the relationship between the initial contact status and stress shielding in total hip arthroplasty (THA) using fit-and-fill type straight-stem implants. In addition we evaluated the clinical and radiographic outcomes. Subjects were 100 hips of 94 patients who underwent THA and were followed-up for ≥10 years. Contact areas with the femoral cortical bone were investigated according to the zonal distribution of Gruen using postoperative CT images. Depending on the number of contact areas, the patients were classified into high contact [HC], medium contact [MC], and low contact [LC] groups. Radiographic and clinical outcomes were evaluated. In the HC group (20 hips), severe stress shielding was observed in 12 hips, which was statistically significant (p=0.008). In the LC group (29 hips), mild stress shielding was observed in 27 hips which was statistically significant (p<0.001). No significant differences were observed among the 3 groups in clinical outcomes, Harris hip score (p=0.719) or Japanese Orthopedic Association (JOA) score (p=0.301). In insertion of cementless collared fit-and-fill type straight-stem implants, severe late stress shielding of the femoral bone may occur if high contact of the femoral component is achieved. However, the degree of stress shielding does not result in adverse clinical outcomes.
Keywords fit-and-fill stress shielding cementless straight stem total hip arthroplasty
Amo Type Original Article
Published Date 2020-02
Publication Title Acta Medica Okayama
Volume volume74
Issue issue1
Publisher Okayama University Medical School
Start Page 7
End Page 15
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2020 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 32099243
Web of Science KeyUT 000516606200002
NAID 120006795614
JaLCDOI 10.18926/AMO/57957
FullText URL 74_1_77.pdf
Author Endo, Hirosuke| Akazawa, Hirofumi| Yashiro, Masato| Yamada, Kazuki| Sanki, Tomoaki| Tetsunaga, Tomonori| Nishida, Keiichiro| Furumatsu, Takayuki| Ozaki, Toshifumi|
Abstract Idiopathic chondrolysis of the hip (ICH), a very rare disorder of unknown etiology, occurs mainly in female adolescents. Characterized by pain, limp, stiffness and radiological narrowing joint space from the rapid destruction of the articular cartilage, ICH sometimes results in ankyloses. We present the case of a 10-year-old girl diagnosed with ICH based on arthroscopic inspection and synovium biopsy. The femoral deformity appeared gradually, like a cam-type femoroacetabular impingement. She was treated with intensive rehabilitation and immunosuppressive drug. We later performed an arthroscopic bumpectomy for residual symptoms. She achieved a favorable outcome as a 15-year-old at the latest follow-up.
Keywords idiopathic chondrolysis hip joint medication bump arthroscopy
Amo Type Case Report
Published Date 2020-02
Publication Title Acta Medica Okayama
Volume volume74
Issue issue1
Publisher Okayama University Medical School
Start Page 77
End Page 81
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
Copyright Holders CopyrightⒸ 2020 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 32099253
Web of Science KeyUT 000516606200012
NAID 120006795624
Author Okazaki, Yoshiki| Furumatsu, Takayuki| Yamauchi, Takatsugu| Okazaki, Yuki| Kamatsuki, Yusuke| Hiranaka, Takaaki| Kajiki, Yuya| Zhang, Ximing| Ozaki, Toshifumi|
Keywords medial meniscus posterior root tear transtibial repair meniscal volume medial extrusion three-dimensional magnetic resonance imaging
Note This fulltext is available in Apr. 2021.|
Published Date 2020-04-06
Publication Title Knee Surgery, Sports Traumatology, Arthroscopy
Publisher Springer
ISSN 09422056
NCID AA10973641
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
File Version author
PubMed ID 32253480
DOI 10.1007/s00167-020-05953-2
Web of Science KeyUT 000525297800001
Related Url isVersionOf https://doi.org/10.1007/s00167-020-05953-2
Author Okazaki, Yuki| Furumatsu, Takayuki| Okazaki, Yoshiki| Masuda, Shin| Hiranaka, Takaaki| Kodama, Yuya| Kamatsuki, Yusuke| Miyazawa, Shinichi| Tetsunaga, Tomonori| Ozaki, Toshifumi|
Keywords Magnetic resonance imaging Medial meniscus Meniscus extrusion Posterior root tear Three-dimensional assessment
Note This fulltext is available in Feb. 2021.|
Published Date 2020-01-01
Publication Title The Knee
Volume volume27
Issue issue1
Publisher Elsevier
Start Page 132
End Page 139
ISSN 09680160
NCID AA10996272
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
File Version author
PubMed ID 31882388
DOI 10.1016/j.knee.2019.09.005
Web of Science KeyUT 000519666300017
Related Url isVersionOf https://doi.org/10.1016/j.knee.2019.09.005
Author Hiranaka, Takaaki| Furumatsu, Takayuki| Miyazawa, Shinichi| Okazaki, Yoshiki| Okazaki, Yuki| Takihira, Shota| Kodama, Yuya| Kamatsuki, Yusuke| Masuda, Shin| Saito, Taichi| Ozaki, Toshifumi|
Keywords Medial meniscus posterior root tear Transtibial pullout repair Modified Mason-Allen suture Two simple stitches Clinical outcomes
Note This fulltext is available in May 2021.|
Published Date 2020-05-11
Publication Title The Knee
Volume volume27
Issue issue3
Publisher Elsevier
Start Page 701
End Page 708
ISSN 0968-0160
NCID AA10996272
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
Copyright Holders © 2020 Elsevier B.V.
File Version author
PubMed ID 32563426
DOI 10.1016/j.knee.2020.04.023
Web of Science KeyUT 000542165100013
Related Url isVersionOf https://doi.org/10.1016/j.knee.2020.04.023
Author Furumatsu, Takayuki| Okazaki, Yuki| Hiranaka, Takaaki| Kodama, Yuya| Kamatsuki, Yusuke| Okazaki, Yoshiki| Zhang, Ximing| Ozaki, Toshifumi|
Note This fulltext is available in Apr. 2021.|
Published Date 2020-04-10
Publication Title Journal of Orthopaedic Science
Publisher Elsevier
ISSN 09492658
NCID AA11052566
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
Copyright Holders © 2020 The Japanese Orthopaedic Association.
File Version author
PubMed ID 32284294
DOI 10.1016/j.jos.2020.03.012
Related Url isVersionOf https://doi.org/10.1016/j.jos.2020.03.012
Author Okazaki, Yuki| Furumatsu, Takayuki| Kamatsuki, Yusuke| Nishida, Keiichiro| Nasu, Yoshihisa| Nakahara, Ryuichi| Saito, Taichi| Ozaki, Toshifumi|
Note This fulltext is available in March. 2021.|
Published Date 2020-03-26
Publication Title Journal of Orthopaedic Science
Publisher Elsevier
ISSN 09492658
NCID AA11052566
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
Copyright Holders © 2020 The Japanese Orthopaedic Association.
File Version author
PubMed ID 32223991
DOI 10.1016/j.jos.2020.02.015
Related Url isVersionOf https://doi.org/10.1016/j.jos.2020.02.015
Author Kamatsuki, Yusuke| Furumatsu, Takayuki| Hiranaka, Takaaki| Okazaki, Yoshiki| Okazaki, Yuki| Kodama, Yuya| Hino, Tomohito| Masuda, Shin| Miyazawa, Shinichi| Ozaki, Toshifumi|
Keywords Medial meniscus Posterior root tear Pullout repair Tibial tunnel Meniscus extrusion Three-dimensional CT
Note This fulltext is available in May 2021.|
Published Date 2020-05-25
Publication Title Knee Surgery, Sports Traumatology, Arthroscopy
Publisher Springer
ISSN 09422056
NCID AA10973641
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
File Version author
PubMed ID 32451621
DOI 10.1007/s00167-020-06070-w
Web of Science KeyUT 000535430500004
Related Url isVersionOf https://doi.org/10.1007/s00167-020-06070-w
FullText URL fulltext.pdf
Author Hiranaka, Takaaki| Furumatsu, Takayuki| Tanaka, Takaaki| Okazaki, Yuki| Kodama, Yuya| Kamatsuki, Yusuke| Masuda, Kenji| Seno, Noritaka| Ozaki, Toshifumi|
Keywords anterior cruciate ligament knee pullout suture screw fixation tibial eminence avulsion fracture
Published Date 2020-06-03
Publication Title Journal of Orthopaedic Surgery
Volume volume28
Issue issue2
Publisher SAGE Publications
Start Page 2309499020918681
ISSN 2309-4990
NCID AA11004541
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
Copyright Holders © The Author(s) 2020
File Version publisher
PubMed ID 32489139
DOI 10.1177/2309499020918681
Web of Science KeyUT 000539749100001
Related Url isVersionOf https://doi.org/10.1177/2309499020918681
Author Hiranaka, Takaaki| Furumatsu, Takayuki| Okazaki, Yuki| Yamawaki, Tadashi| Okazaki, Yoshiki| Kodama, Yuya| Kamatsuki, Yusuke| Ozaki, Toshifumi|
Keywords Medial meniscus Posterior root tear Bilateral injury Predictor Medial tibial slope Sensitivity and specificity
Note This is a post-peer-review, pre-copyedit version of an article published in Knee Surgery, Sports Traumatology, Arthroscopy. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00167-020-06079-1. </br>This fulltext is available in June 2021.|
Published Date 2020-06-01
Publication Title Knee Surgery, Sports Traumatology, Arthroscopy
Publisher Springer
ISSN 0942-2056
NCID AA10973641
Content Type Journal Article
language 英語
OAI-PMH Set 岡山大学
File Version Author
PubMed ID 32488369
DOI 10.1007/s00167-020-06079-1
Web of Science KeyUT 000538465000003
Related Url isVersionOf https://doi.org/10.1007/s00167-020-06079-1