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 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
JaLCDOI 10.18926/AMO/60373
FullText URL 74_4_345.pdf
Author Tanaka, Takaaki| Furumatsu, Takayuki| Hiranaka, Takaaki| Okazaki, Yuki| Masudaa, Kenji| Senoa, Noritaka| Ozaki, Toshifumi|
Abstract The aim of this study was to evaluate tunnel coalition and inter-tunnel distance by comparing the tibial tunnel position in double-bundle anterior cruciate ligament (ACL) reconstruction performed with a conventional guide versus a posterolateral (PL) divergence (PLD) guide. Subjects were 43 patients (ACL tip aimer: 20 knees; PLD guide: 23 knees) who underwent double-bundle ACL reconstruction between September 2014 and December 2017. In all cases, the tibial tunnel position, tunnel edge distance and tunnel angles were evaluated based on CT images. Clinical outcome was evaluated using the Lachman test, pivot-shift test, and Lysholm score. Tibial tunnel positions were similar between the conventional and PLD guide groups, while tibial tunnel edge distance was significantly less in the conventional group. Tunnel coalition was observed in 5 knees in the conventional and no knees in the PLD guide group. Distance between two tibial tunnel centers was 9.1 mm for the tip aimer, and 10.5 mm for the PLD guide. Creation of the PL tunnel tended to involve insertion from a more medial aspect for the PLD guide group than the conventional guide group. No differences in clinical outcomes were noted. The PLD guide can be used to create anatomically-positioned PL tunnels, and reduce the probability of occurrence of tunnel coalition.
Keywords anterior cruciate ligament reconstruction tibial tunnel position PL divergence guide tunnel coalition
Amo Type Original Article
Published Date 2020-08
Publication Title Acta Medica Okayama
Volume volume74
Issue issue4
Publisher Okayama University Medical School
Start Page 345
End Page 350
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 32843766
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
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