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• Secure paediatric pelvic fracture external fixation using an intraoperative support device.

  Igei T, Nakasone S, Onaga M, Nishida K

  BMJ case reports ( BMJ Case Reports )  16 ( 4 )   2023年04月 [ 査読有り ]

  掲載種別: 研究論文（学術雑誌）

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• Significant removal of bacterial biofilm induced by multiple-Short ranges of electric interventions.

  Taira H, Yaga M, Nakasone S, Nishida K, Yamashiro T

  Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association ( Journal of Orthopaedic Science )    2023年02月 [ 査読有り ]

  掲載種別: 研究論文（学術雑誌）

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• Real-time three-dimensional fluoroscopy-navigated percutaneous pelvic screw placement for fragility fractures of the pelvis in the hybrid operating room.

  Takaesu M, Nakasone S, Miyata Y, Nishida K

  BMC musculoskeletal disorders ( BMC Musculoskeletal Disorders )  23 ( 1 ) 1057   2022年12月 [ 査読有り ]

  掲載種別: 研究論文（学術雑誌）

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• Visualization of acetabular coverage with radar chart before and after curved periacetabular osteotomy in dysplastic hips.

  Igei T, Nakasone S, Onaga M, Ishihara M, Nishida K

  Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association ( Journal of Orthopaedic Science )    2022年08月 [ 査読有り ]

  掲載種別: 研究論文（学術雑誌）

  　概要を見る

  BACKGROUND: Curved periacetabular osteotomy (CPO) is indicated for patients with developmental dysplasia of hip (DDH) to prevent progressive osteoarthritis. Patients with DDH have not only lateral acetabulum dysplasia but also anterior and posterior dysplasia. The full circumference acetabular coverage angle (ACA) of the femoral head should be evaluated preoperatively. This study aimed to determine the full circumference ACA in the patients with DDH before and after CPO compared with the coverage in normal patients. METHODS: Twenty-three patients (a total of 24 hips) with DDH undergoing CPO between February 2006 and March 2014 were included in this study. The normal group was defined as the normal side in patients with unilateral osteonecrosis of the femoral head (ONFH) and the non-collapsed femoral head side in patients with bilateral ONFH. Pre- and postoperative hip functions were evaluated using the Japanese Orthopedic Association (JOA) hip score. ACA was measured using pre- and postoperative three-dimensional computed tomography (3DCT) and described as a clock using a radar chart. The ACA of the normal group was evaluated in the same manner as that for patients who underwent CPO. The ACA before CPO was compared with the ACA after CPO, the ACA before CPO was compared with that of the normal group and the ACA after CPO was compared with that of the normal group at each location. RESULTS: The mean JOA hip scores improved significantly from 69 preoperatively to 88 postoperatively. The superior, posterior, and anterior ACA after CPO significantly increased and the inferior ACA decreased compared with ACA before CPO. The superior, posterior, and anterior ACA before CPO were significantly smaller than ACA in the normal group. The ACA after CPO were similar to the normal group. CONCLUSIONS: CPO improved the anterosuperior coverage of the femoral head but reduced its inferior coverage. The radar chart could visualize acetabulum full circumference and was useful for three-dimensional pre-postoperative evaluation.

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• Accuracy of Acetabular Cup Placement During Total Hip Arthroplasty in Supine Position Using a Pelvic Rotation Correction Device.

  Nakasone S, Takaesu M, Ishihara M, Onaga M, Igei T, Miyata Y, Nishida K

  Arthroplasty today ( Arthroplasty Today )  16   46 - 52   2022年08月 [ 査読有り ]

  掲載種別: 研究論文（学術雑誌）

  　概要を見る

  Background: Accurate cup placement during total hip arthroplasty (THA) is difficult because the intraoperative pelvic position changes even in supine patient position. We developed a device known as HipPointer; it corrects pelvic rotation and creates a functional pelvic plane as a reference. The aim of this study was to determine the device placement accuracy and investigate causes of error. Material and methods: HipPointer was used for cup placement in 353 hips of 308 patients who underwent direct-anterior-approach THA in supine position. The mean age at surgery and body mass index were 63.9 (17-90) years and 24.9 (16.6-42.0) kg/m2, respectively. The mean observation period was 40.5 (12-73) months. To investigate the accuracy of HipPointer, preoperative planning and postoperative cup placement angles relative to the functional pelvic plane were evaluated using a three-dimensional analysis software, and absolute errors were determined. Results: The means ± standard deviations of radiographic inclination (RI) and radiographic anteversion (RA) were 40.2 ± 3.0° and 15.8 ± 3.6°, respectively. The absolute errors of RI and RA were 2.2 ± 2.0° and 2.7 ± 2.3°, respectively. The ratio of the cup placement angle for which both RI and RA are ≤10° in the target zone was 99% (350/353 hips), and the ratio of the absolute errors for which both RI and RA are ≤5° was 80.4% (284/353 hips). Conclusions: HipPointer is simple in structure, easy to use, and useful for direct-anterior-approach THA in supine position. It provides good cup placement accuracy.

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• クモの巣グラフを用いた大腿骨骨頭回転骨切り術の３次元術前計画

  仲宗根

  日本CAOS研究会  1900年01月  -  1900年01月   

• MIS-THAにより早期退院とその医療経済効果

  仲宗根

  沖縄関節外科研究会  1900年01月  -  1900年01月   

• DAAによるTHA術後の鼠径部痛の検討

  ■■■

  日本CAOS研究会  1900年01月  -  1900年01月   

• DAA-THAの弱点を克服する新しい術中支援システム/デバイス

  仲宗根

  日本股関節学会学術集会  1900年01月  -  1900年01月   

• 3D MRIを用いた大腿骨頭壊死症に対する大腿骨頭回転骨切術のシミュレーション-クモの巣グラフを用いた3次元術前計画-

  仲宗根

  日本股関節学会学術集会  1900年01月  -  1900年01月   

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• Best paper賞

  1900年01月01日   沖縄県整形外科振興会  

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