| 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/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/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 |
| 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 |
| 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 | 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 |
| 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 | 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 |
| 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 | 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 |
| JaLCDOI | 10.18926/AMO/55439 |
|---|---|
| FullText URL | 71_5_413.pdf |
| Author | Furumatsu, Takayuki| Kodama, Yuya| Kamatsuki, Yusuke| Hino, Tomohito| Ozaki, Toshifumi| |
| Abstract | Extrusion of the medial meniscus (MM) is associated with knee joint pain in osteoarthritic knees. The relationships among MM radial/oblique tears, MM extrusion (MME), and the effect of arthroscopic meniscal repair are not established. Here we evaluated the effects of arthroscopic all-inside MM repair on MME and the clinical outcomes in patients with radially oriented MM tears and mildly osteoarthritic knees. Twenty patients with a symptomatic radial or oblique tear of the MM posterior segment, MME ≥2.5 mm, and mildly osteoarthritic knees were treated using FasT-Fix 360 All-inside Meniscal Suture devices. We used magnetic resonance imaging (MRI) to measure the patients’ MM body width (MMBW), absolute MME, and relative MME. The Japanese Knee Injury and Osteoarthritis Outcome Score, Lysholm, Tegner, IKDC Subjective Knee Evaluation, and Visual Analogue Scale scores were obtained. Arthroscopic all-inside MM repair prevented increases of absolute and relative MME. The preoperative and 3- and 12-month MRI-based MMBW values were similar. Over a 24-month follow-up after the MM repairs, the clinical scores showed significant improvements. Our results suggest that all-inside meniscal repairs would be useful in preventing the progression of MME in patients suffering from symptomatic MM radial/oblique tears associated with mildly osteoarthritic knees. |
| Keywords | medial meniscus radial/oblique tear meniscal repair meniscal extrusion osteoarthritic knee |
| Amo Type | Original Article |
| Published Date | 2017-10 |
| Publication Title | Acta Medica Okayama |
| Volume | volume71 |
| Issue | issue5 |
| Publisher | Okayama University Medical School |
| Start Page | 413 |
| End Page | 418 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | 英語 |
| Copyright Holders | CopyrightⒸ 2017 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 29042699 |
| FullText URL | J_Orthop_Sci_22_4_731.pdf fig.pdf tbl.pdf |
|---|---|
| Author | Furumatsu, Takayuki| Fujii, Masataka| Kodama, Yuya| Ozaki, Toshifumi| |
| Note | This is an Accepted Manuscript of an article published by Elsevier| |
| Published Date | 2017-07 |
| Publication Title | Journal of Orthopaedic Science |
| Volume | volume22 |
| Issue | issue4 |
| Publisher | Elsevier |
| Start Page | 731 |
| End Page | 736 |
| ISSN | 0949-2658 |
| NCID | AA11052566 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja |
| File Version | author |
| PubMed ID | 28416188 |
| DOI | 10.1016/j.jos.2017.03.013 |
| Web of Science KeyUT | 000407394700025 |
| Related Url | isVersionOf https://doi.org/10.1016/j.jos.2017.03.013 |
| FullText URL | J_Orthop_Sci_22_4_715.pdf fig.pdf |
|---|---|
| Author | Lu, Zhichao| Furumatsu, Takayuki| Fujii, Masataka| Maehara, Ami| Ozaki, Toshifumi| |
| Keywords | vascular endothelial growth factor (VEGF) meniscus meniscal injury hypoxia-inducible factor-1α (HIF-1α) |
| Note | This is an Accepted Manuscript of an article published by Elsevier| |
| Published Date | 2017-07 |
| Publication Title | Journal of Orthopaedic Science |
| Volume | volume22 |
| Issue | issue4 |
| Publisher | Elsevier |
| Start Page | 715 |
| End Page | 721 |
| ISSN | 0949-2658 |
| NCID | AA11052566 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja |
| File Version | author |
| PubMed ID | 28318650 |
| DOI | 10.1016/j.jos.2017.02.006 |
| Web of Science KeyUT | 000407394700022 |
| Related Url | isVersionOf https://doi.org/10.1016/j.jos.2017.02.006 |
| FullText URL | J_Orthop_Sci_21_4_524.pdf fig.pdf |
|---|---|
| Author | Furumatsu, Takayuki| Maehara, Ami| Ozaki, Toshifumi| |
| Note | This is an Accepted Manuscript of an article published by Elsevier| |
| Published Date | 2016-07 |
| Publication Title | Journal of Orthopaedic Science |
| Volume | volume21 |
| Issue | issue4 |
| Publisher | Elsevier |
| Start Page | 524 |
| End Page | 529 |
| ISSN | 0949-2658 |
| NCID | AA11052566 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja |
| File Version | author |
| PubMed ID | 27113646 |
| DOI | 10.1016/j.jos.2016.02.013 |
| Web of Science KeyUT | 000381142800020 |
| Related Url | isVersionOf https://doi.org/10.1016/j.jos.2016.02.013 |
| JaLCDOI | 10.18926/AMO/55312 |
|---|---|
| FullText URL | 71_4_345.pdf |
| Author | Tanaka, Masato| Sugimoto, Yoshihisa| Takigawa, Tomoyuki| Kimata, Yoshihiro| Ozaki, Toshifumi| |
| Abstract | Osteoradionecrosis (ORN), a well-known complication of radiotherapy in the mandibular bone, is very rare in the cervical spine. The authors report the result of a 3-year follow-up of a 63-year-old female patient with ORN of the cervical spine. The patient had a history of laryngeal carcinoma and was treated with chemotherapy and radiation therapy with a total of 120 Gy. Eight years later, she developed acute, severe neck pain due to cervical spine necrosis. The authors performed vascularized fibular bone graft and posterior pedicle screw fixation to reconstruct her cervical spine. The patient was successfully treated with surgery, and cervical alignment was preserved. She had neither neurological deficits nor severe neck pain at her final follow-up 3 years later. Delaying treatment of ORN may be life threatening, so the early diagnosis of this condition is important for patients who receive radiotherapy. Otolaryngologists and spine surgeons should understand this potential complication to speed diagnosis and treatment as early as possible. |
| Keywords | osteoradionecrosis laryngeal carcinoma cervical spine radiotherapy |
| Amo Type | Case Report |
| Published Date | 2017-08 |
| Publication Title | Acta Medica Okayama |
| Volume | volume71 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 345 |
| End Page | 349 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | 英語 |
| Copyright Holders | CopyrightⒸ 2017 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 28824191 |
| JaLCDOI | 10.18926/AMO/55308 |
|---|---|
| FullText URL | 71_4_315.pdf |
| Author | Fujii, Yosuke| Endo, Hirosuke| Mitani, Shigeru| Akazawa, Hirofumi| Tetsunaga, Tomonori| Miyake, Takamasa| Yamada, Kazuki| Aoki, Kiyoshi| Ozaki, Toshifumi| |
| Abstract | We retrospectively reviewed 29 hips in which intertrochanteric osteotomies were performed for severe slipped capital femoral epiphyses. Mean age at surgery: 12.6 years. Mean follow-up period: 6 years. At the final follow-up evaluation, one patient had coxalgia, and six hips showed a limited range of motion. A pistol-grip deformity was observed in 13 hips, osteoarthritis in two hips, and a bump existed in 19 hips on the latest radiographs. Gradual remodeling of the bumps was observed post-operatively in 22 hips. The mean α and β angles and offset α and β improved over time. The remodeling proceeded rapidly for 1 year post-surgery. We compared hips classified as β angles of ≥ 63° to < 63° at the final follow-up evaluation, the mean β angle 1 year post-surgery, and the mean ratio of improvement of the β angle per year from 1 year post-surgery to the final follow up, which differed significantly. Nearly all of the patients who underwent intertrochanteric osteotomies had residual morphologic abnormalities, but few had clinical symptoms. The β angle 1 year post-surgery and the ratio of remodeling of the bump from 1 year post-surgery to the final follow-up can be regarded as a potential predictor of morphologic results after intertrochanteric osteotomy. |
| Keywords | slipped capital femoral epiphyses intertrochanteric osteotomy residual femoral deformity femoroacetabular impingement bone remodeling |
| Amo Type | Original Article |
| Published Date | 2017-08 |
| Publication Title | Acta Medica Okayama |
| Volume | volume71 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 315 |
| End Page | 323 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | 英語 |
| Copyright Holders | CopyrightⒸ 2017 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 28824187 |
| JaLCDOI | 10.18926/AMO/55304 |
|---|---|
| FullText URL | 71_4_279.pdf |
| Author | Fujii, Yosuke| Fujiwara, Kazuo| Tetsunaga, Tomonori| Miyake, Takamasa| Yamada, Kazuki| Endo, Hirosuke| Abe, Nobuhiro| Sugita, Naohiko| Mitsuishi, Mamoru| Inoue, Takayuki| Nakashima, Yoshio| Ozaki, Toshifumi| |
| Abstract | We developed a surface matching-type computed tomography (CT)-based navigation system for total hip arthroplasty (the N-navi; TEIJIN NAKASHIMA MEDICAL, Okayama, Japan). In the registration step, surface matching was performed with digitizing points on the pelvic bone surface after coarse paired matching. In the present study, we made model bones from the CT data of patients whose acetabular shapes had various deformities. We measured the distances and angles after surface matching from the fiducial points and evaluated the ability to correct surface-matching registration on each pelvic form, using several areas and numbers of points. When the surface-matching points were taken on the superior area of the acetabulum, the correction was easy for the external direction, but it was difficult to correct for the anterior and proximal directions. The correction was difficult for external and proximal directions on the posterior area. Each area of surface-matching points has particular directions that are easily corrected and other directions that are difficult to correct. The shape of the pelvis also affected the correction ability. Our present findings suggest that checking the position after coarse paired matching and choosing the surface-matching area and points that are optimal to correct will improve the accuracy of total hip arthroplasty and reduce surgical times. |
| Keywords | total hip arthroplasty CT-based navigation system surface matching |
| Amo Type | Original Article |
| Published Date | 2017-08 |
| Publication Title | Acta Medica Okayama |
| Volume | volume71 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 279 |
| End Page | 289 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | 英語 |
| Copyright Holders | CopyrightⒸ 2017 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 28824183 |
| JaLCDOI | 10.18926/AMO/54980 |
|---|---|
| FullText URL | 71_2_119.pdf |
| Author | Oda, Yoshiaki| Takigawa, Tomoyuki| Sugimoto, Yoshihisa| Tanaka, Masato| Akazawa, Hirofumi| Ozaki, Toshifumi| |
| Abstract | Patients with cerebral palsy (CP) frequently present with scoliosis; however, the pattern of curve progression is difficult to predict. We aimed to clarify the natural course of the progression of scoliosis and to identify scoliosis predictors. This was a retrospective, single-center, observational study. Total of 92 CP patients from Asahikawasou Ryouiku Iryou Center in Okayama, Japan were retrospectively analyzed. Cobb angle, presence of hip dislocation and pelvic obliquity, and Gross Motor Function Classification System (GMFCS) were investigated. Severe CP was defined as GMFCS level IV or V. The mean observation period was 10.7 years. Thirtyfour severe CP patients presented with scoliosis and were divided into 3 groups based on their clinical courses: severe, moderate and mild. The mean Cobb angles at the final follow-up were 129°, 53°, and 13° in the severe, moderate, and mild groups, respectively. The average progressions from 18 to 25 years were 2.7°/year, 0.7°/year, and 0.1°/year in the severe, moderate, and mild curve groups, respectively. We observed the natural course of scoliosis and identified 3 courses based on the Cobb angle at 15 and 18 years of age. This method of classification may help clinicians predict the patients’ disease progression. |
| Keywords | severe cerebral palsy scoliosis natural course Cobb angle progression |
| Amo Type | Original Article |
| Published Date | 2017-04 |
| Publication Title | Acta Medica Okayama |
| Volume | volume71 |
| Issue | issue2 |
| Publisher | Okayama University Medical School |
| Start Page | 119 |
| End Page | 126 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | 英語 |
| Copyright Holders | CopyrightⒸ 2017 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 28420893 |
| Author | Okada, Yoshiki| Abe, Nobuhiro| Hisamori, Noriyuki| Kaneeda, Toshiaki| Moriyama, Shigeaki| Ohmori, Hitoshi| Mizutani, Masayoshi| Yanai, Hiroyuki| Nakashima, Yoshio| Yokoyama, Yusuke| Ozaki, Toshifumi| |
|---|---|
| Published Date | 2017-02 |
| Publication Title | Acta Medica Okayama |
| Volume | volume71 |
| Issue | issue1 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/AMO/54825 |
| Author | Nishida, Keiichiro| Hashizume, Kenzo| Ozawa, Masatsugu| Takeshita, Ayumu| Kaneda, Daisuke| Nakahara, Ryuichi| Nasu, Yoshihisa| Shimamura, Yasunori| Inoue, Hajime| Ozaki, Toshifumi| |
|---|---|
| Published Date | 2017-02 |
| Publication Title | Acta Medica Okayama |
| Volume | volume71 |
| Issue | issue1 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/AMO/54824 |
