| JaLCDOI | 10.18926/AMO/52786 |
|---|---|
| フルテキストURL | 68_4_201.pdf |
| 著者 | Endo, Hirosuke| Akazawa, Hirofumi| Mitani, Shigeru| Okada, Yoshiki| Yamane, Kentaro| Ozaki, Toshifumi| |
| 抄録 | We reviewed the treatment outcome in 14 hips of 7 patients who were diagnosed as having bilateral developmental dislocation of the hip (DDH) after walking age and could be followed up until they were at least 14 years of age. Based on the results of two-directional arthrography of the hip, closed reduction was performed in 2 hips, and open reduction was performed without osteotomy in 12 hips. The final radiographic evaluations were made according to the Kalamchi and MacEwen classification and Severin classification. The mean age at the initial visit was 1 year and 9 months (range, 1 year and 5 months to 3 years). The outcome was satisfactory for one hip in Group Ⅰ and 2 hips in Group Ⅱ according to the Kalamchi and MacEwen classification, and in 83% of the Severin Class Ⅰ and Ⅱ hips. Arthrography was useful for identifying asymmetry, demonstrating the usefulness of a treatment strategy based on arthrography of the hip. |
| キーワード | developmental dislocation of the hip bilateral case arthrogram open reduction after walking age |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2014-08 |
| 巻 | 68巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 201 |
| 終了ページ | 206 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2014 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 25145406 |
| Web of Science KeyUT | 000340687500002 |
| JaLCDOI | 10.18926/AMO/53556 |
|---|---|
| フルテキストURL | 69_4_205.pdf |
| 著者 | Okada, Yoshiki| Endo, Hirosuke| Mitani, Shigeru| Fujiwara, Kazuo| Tetsunaga, Tomonori| Kagawa, Yohei| Fujii, Yosuke| Kunisada, Toshiyuki| Ozaki, Toshifumi| |
| 抄録 | Total hip arthroplasty (THA) is the most effective treatment for advanced or end-stage hip osteoarthritis. However, venous thromboembolism (VTE) remains one of its unresolved complications. We reviewed the records of 322 patients undergoing primary THA and investigated the efficacy of anticoagulant prophylaxis for VTE. Our study cohort consisted of 60 patients who received no anticoagulants, 100 patients who received a factor Xa inhibitor (fondaparinux), 100 patients who received low molecular weight heparin (enoxaparin), and 62 patients who selectively received no anticoagulant prophylaxis due to perioperative bleeding, weight, and/or hemoglobin concentration. Enhanced 64-slice multidetector row computed tomography was performed postoperatively for 7 days in all cases. The incidence of VTE in the four groups was 15ｵ, 9.0ｵ, 6.0ｵ, and 6.4ｵ, respectively. The incidence of VTE was significantly lower in the groups receiving anticoagulant prophylaxis and the group selectively receiving no anticoagulant prophylaxis than in the group receiving no anticoagulants. Complications of fondaparinux therapy included hepatic dysfunction in 4 cases (4.0ｵ), minor bleeding in 2 cases (2.0ｵ), persistent wound drainage in 3 cases (3.0ｵ), and eruption in 1 case (1.0ｵ). The complications of enoxaparin therapy were persistent wound drainage in 1 case (1.0ｵ) and progression of anemia in 1 case (1.0ｵ). The incidence of VTE was low in patients who selectively received no anticoagulant prophylaxis, so we conclude that anticoagulant prophylaxis should be used selectively in THA cases. |
| キーワード | total hip arthroplasty venous thromboembolism anticoagulant prophylaxis complications |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2015-08 |
| 巻 | 69巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 205 |
| 終了ページ | 212 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2015 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 26289911 |
| Web of Science KeyUT | 000365519100003 |
| 関連URL | http://doi.org/10.18926/AMO/53680 |
| JaLCDOI | 10.18926/AMO/53680 |
|---|---|
| フルテキストURL | 69_5_325.pdf |
| 著者 | Okada, Yoshiki| Endo, Hirosuke| Mitani, Shigeru| Fujiwara, Kazuo| Tetsunaga, Tomonori| Kagawa, Yohei| Fujii, Yosuke| Kunisada, Toshiyuki| Ozaki, Toshifumi| |
| 抄録 | Total hip arthroplasty (THA) is the most effective treatment for advanced or end-stage hip osteoarthritis. However, venous thromboembolism (VTE) remains one of its unresolved complications. We reviewed the records of 322 patients undergoing primary THA and investigated the efficacy of anticoagulant prophylaxis for VTE. Our study cohort consisted of 60 patients who received no anticoagulants, 100 patients who received a factor Xa inhibitor (fondaparinux), 100 patients who received low molecular weight heparin (enoxaparin), and 62 patients who selectively received no anticoagulant prophylaxis due to perioperative bleeding, weight, and/or hemoglobin concentration. Enhanced 64-slice multidetector row computed tomography was performed postoperatively for 7 days in all cases. The incidence of VTE in the four groups was 15%, 9.0%, 6.0%, and 6.4%, respectively. The incidence of VTE was significantly lower in the groups receiving anticoagulant prophylaxis and the group selectively receiving no anticoagulant prophylaxis than in the group receiving no anticoagulants. Complications of fondaparinux therapy included hepatic dysfunction in 4 cases (4.0%), minor bleeding in 2 cases (2.0%), persistent wound drainage in 3 cases (3.0%), and eruption in 1 case (1.0%). The complications of enoxaparin therapy were persistent wound drainage in 1 case (1.0%) and progression of anemia in 1 case (1.0%). The incidence of VTE was low in patients who selectively received no anticoagulant prophylaxis, so we conclude that anticoagulant prophylaxis should be used selectively in THA cases. |
| キーワード | total hip arthroplasty venous thromboembolism anticoagulant prophylaxis complications |
| Amo Type | Erratum |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2015-10 |
| 巻 | 69巻 |
| 号 | 5号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 325 |
| 終了ページ | 325 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2015 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 26490031 |
| 関連URL | http://doi.org/10.18926/AMO/53556 |
| JaLCDOI | 10.18926/AMO/55304 |
|---|---|
| フルテキストURL | 71_4_279.pdf |
| 著者 | Fujii, Yosuke| Fujiwara, Kazuo| Tetsunaga, Tomonori| Miyake, Takamasa| Yamada, Kazuki| Endo, Hirosuke| Abe, Nobuhiro| Sugita, Naohiko| Mitsuishi, Mamoru| Inoue, Takayuki| Nakashima, Yoshio| Ozaki, Toshifumi| |
| 抄録 | 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. |
| キーワード | total hip arthroplasty CT-based navigation system surface matching |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2017-08 |
| 巻 | 71巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 279 |
| 終了ページ | 289 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2017 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 28824183 |
| JaLCDOI | 10.18926/AMO/55308 |
|---|---|
| フルテキストURL | 71_4_315.pdf |
| 著者 | Fujii, Yosuke| Endo, Hirosuke| Mitani, Shigeru| Akazawa, Hirofumi| Tetsunaga, Tomonori| Miyake, Takamasa| Yamada, Kazuki| Aoki, Kiyoshi| Ozaki, Toshifumi| |
| 抄録 | 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. |
| キーワード | slipped capital femoral epiphyses intertrochanteric osteotomy residual femoral deformity femoroacetabular impingement bone remodeling |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2017-08 |
| 巻 | 71巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 315 |
| 終了ページ | 323 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2017 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 28824187 |
| JaLCDOI | 10.18926/AMO/57947 |
|---|---|
| フルテキストURL | 74_1_7.pdf |
| 著者 | Sanki, Tomoaki| Endo, Hirosuke| Tetsunaga, Tomonori| Furumatsu, Takayuki| Yamada, Kazuki| Ozaki, Toshifumi| |
| 抄録 | 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. |
| キーワード | fit-and-fill stress shielding cementless straight stem total hip arthroplasty |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2020-02 |
| 巻 | 74巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 7 |
| 終了ページ | 15 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2020 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 32099243 |
| Web of Science KeyUT | 000516606200002 |
| NAID | 120006795614 |
| JaLCDOI | 10.18926/AMO/57957 |
|---|---|
| フルテキストURL | 74_1_77.pdf |
| 著者 | Endo, Hirosuke| Akazawa, Hirofumi| Yashiro, Masato| Yamada, Kazuki| Sanki, Tomoaki| Tetsunaga, Tomonori| Nishida, Keiichiro| Furumatsu, Takayuki| Ozaki, Toshifumi| |
| 抄録 | 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. |
| キーワード | idiopathic chondrolysis hip joint medication bump arthroscopy |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2020-02 |
| 巻 | 74巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 77 |
| 終了ページ | 81 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2020 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 32099253 |
| Web of Science KeyUT | 000516606200012 |
| NAID | 120006795624 |
| 著者 | 藤原 一夫| 遠藤 裕介| 三宅 由晃| 尾﨑 敏文| |
|---|---|
| 発行日 | 2010-08-02 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 122巻 |
| 号 | 2号 |
| 資料タイプ | 学術雑誌論文 |
| フルテキストURL | fulltext20211018-4.pdf figure20211018-4.pdf |
|---|---|
| 著者 | Furumatsu, Takayuki| Hiranaka, Takaaki| Kodama, Yuya| Kamatsuki, Yusuke| Okazaki, Yuki| Yamawaki, Tadashi| Endo, Hirosuke| Ozaki, Toshifumi| |
| 備考 | © 2021 Elsevier Masson SAS. This manuscript version is made available under the CC-BY-NC-ND 4.0 License.http://creativecommons.org/licenses/by-nc-nd/4.0/.This is the accepted manuscript version. The formal published version is available at [https://doi.org/10.1016/j.rcot.2021.01.008] .| |
| 発行日 | 2021-04-30 |
| 出版物タイトル | Revue de Chirurgie Orthopédique et Traumatologique |
| 巻 | 107巻 |
| 号 | 2号 |
| 出版者 | Elsevier Masson SAS |
| 開始ページ | 244 |
| 終了ページ | 245 |
| ISSN | 18770517 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| OAI-PMH Set | 岡山大学 |
| 著作権者 | © 2021 Elsevier Masson SAS. All rights reserved. |
| 論文のバージョン | author |
| DOI | 10.1016/j.rcot.2021.01.008 |
| 関連URL | isVersionOf https://doi.org/10.1016/j.rcot.2021.01.008 |