Papers - WATANABE Kouta

CTを用いた距骨骨軟骨損傷の病変部位の検討

寺本 篤史, 倉 秀治, 鈴木 智之, 渡邉 耕太, 山下 敏彦

日本整形外科学会雑誌 ( (公社)日本整形外科学会 )  91 ( 2 ) S91 - S91  2017.03

距骨骨軟骨損傷の診断におけるトモシンセシスの有用性

安斉 見, 寺本 篤史, 小路 弘晃, 村橋 靖崇, 鈴木 智之, 渡邉 耕太

北海道整形災害外科学会雑誌 ( 北海道整形災害外科学会 )  58 ( 2 ) 310 - 310  2017.03

SAFE-Qを用いた鏡視下足関節固定術の治療成績評価

村橋 靖崇, 寺本 篤史, 小路 弘晃, 山下 敏彦, 渡邉 耕太

北海道整形災害外科学会雑誌 ( 北海道整形災害外科学会 )  58 ( 2 ) 311 - 311  2017.03

距骨骨軟骨損傷の診断におけるトモシンセシスの有用性

安斉 見, 寺本 篤史, 小路 弘晃, 榊原 醸, 村橋 靖崇, 鈴木 智之, 渡邉 耕太, 山下 敏彦

日本整形外科学会雑誌 ( (公社)日本整形外科学会 )  91 ( 2 ) S91 - S91  2017.03

SAFE-Qを用いた鏡視下足関節固定術の治療成績評価の有効性

村橋 靖崇, 寺本 篤史, 渡邉 耕太, 山下 敏彦

日本整形外科学会雑誌 ( (公社)日本整形外科学会 )  91 ( 2 ) S86 - S86  2017.03

距骨骨軟骨損傷の病変部位の検討

寺本 篤史, 鈴木 智之, 山下 敏彦, 倉 秀治, 渡邉 耕太

北海道整形災害外科学会雑誌 ( 北海道整形災害外科学会 )  58 ( 2 ) 310 - 311  2017.03

人工膝関節置換術後感染の治療成績と患者立脚型機能評価

神保 俊介, 寺本 篤史, 鈴木 智之, 木井 雄一郎, 岡田 葉平, 榊原 醸, 山下 敏彦, 渡邉 耕太, 箕輪 剛, 武田 真太郎

日本整形外科学会雑誌 ( (公社)日本整形外科学会 )  91 ( 3 ) S892 - S892  2017.03

内側楔状開大型高位脛骨骨切り術の患者立脚評価に影響を与える因子の検討

房川 祐頼, 鈴木 智之, 名越 智, 渡邉 耕太, 寺本 篤史, 舘田 健児, 小助川 維摩, 興村 慎一郎, 木井 雄一郎, 山下 敏彦

日本整形外科学会雑誌 ( (公社)日本整形外科学会 )  91 ( 2 ) S583 - S583  2017.03

健常成人男性における体幹伸展時の胸腰椎の運動学的解析

山根 裕司, 片寄 正樹, 谷口 圭吾, 青木 信裕, 渡邉 耕太, 山下 敏彦

日本整形外科学会雑誌 ( (公社)日本整形外科学会 )  91 ( 3 ) S1150 - S1150  2017.03

視覚誘導性自己運動錯覚は短期間関節固定による筋出力機能低下を予防できるか

金子 文成, 稲田 亨, 柴田 恵理子, 片寄 正樹, 渡邉 耕太, 山下 敏彦

日本整形外科学会雑誌 ( (公社)日本整形外科学会 )  91 ( 2 ) S29 - S29  2017.03

Three-dimensional analysis of tarsal bone response to axial loading in patients with hallux valgus and normal feet.

Kota Watanabe, Yasutoshi Ikeda, Daisuke Suzuki, Atsushi Teramoto, Takuma Kobayashi, Tomoyuki Suzuki, Toshihiko Yamashita

Clinical biomechanics (Bristol, Avon)   42   65 - 69  2017.02  [International journal]

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BACKGROUND: Patients with hallux valgus present a variety of symptoms that may be related to the type of deformity. Weightbearing affects the deformities, and the evaluation of the load response of tarsal bones has been mainly performed using two-dimensional plane radiography. The purpose of this study was to investigate and compare structural changes in the medial foot arch between patients with hallux valgus and normal controls using a computer image analysis technique and weightbearing computed tomography data. METHODS: Eleven patients with hallux valgus and eleven normal controls were included. Computed tomograms were obtained with and without simulated weightbearing using a compression device. Computed tomography data were transferred into a personal computer, and a three-dimensional bone model was created using image analysis software. The load responses of each tarsal bone in the medial foot arch were measured three-dimensionally and statistically compared between the two groups. FINDINGS: Displacement of each tarsal bone under two weightbearing conditions was visually observed by creating three-dimensional bone models. At the first metatarsophalangeal joint, the proximal phalanges of the hallux valgus group showed significantly different displacements in multiple directions. Moreover, opposite responses to axial loading were also observed in both translation and rotation between the two groups. INTERPRETATION: Weightbearing caused deterioration of the hallux valgus deformity three-dimensionally at the first metatarsophalangeal joint. Information from the computer image analysis was useful for understanding details of the pathology of foot disorders related to the deformities or instability and may contribute to the development of effective conservative and surgical treatments.

DOI PubMed

Three-dimensional kinematics of medial longitudinal arches in middle-aged males and females

鈴木大輔, 渡邉耕太, 喜沢史弥, 名越智, 山下敏彦

臨床バイオメカニクス ( 日本臨床バイオメカニクス学会 )  38   139 - 144  2017  [Refereed]

CiNii

The in situ force in the calcaneofibular ligament and the contribution of this ligament to ankle joint stability.

Takuma Kobayashi, Satoshi Yamakawa, Kota Watanabe, Kei Kimura, Daisuke Suzuki, Hidenori Otsubo, Atsushi Teramoto, Mineko Fujimiya, Hiromichi Fujie, Toshihiko Yamashita

Clinical biomechanics (Bristol, Avon)   40   8 - 13  2016.12  [International journal]

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BACKGROUND: Numerous biomechanical studies of the lateral ankle ligaments have been reported; however, the isolated function of the calcaneofibular ligament has not been clarified. We hypothesize that the calcaneofibular ligament would stabilize the ankle joint complex under multidirectional loading, and that the in situ force in the calcaneofibular ligament would change in each flexed position. METHODS: Using seven fresh frozen cadaveric lower extremities, the motions and forces of the intact ankle under multidirectional loading were recorded using a 6-degree-of-freedom robotic system. On repeating these intact ankle joint complex motions after the calcaneofibular ligament transection, the in situ force in the calcaneofibular ligament and the contribution of the calcaneofibular ligament to ankle joint complex stability were calculated. Finally, the motions of the calcaneofibular ligament-transected ankle joint complex were recorded. FINDINGS: Under an inversion load, significant increases of inversion angle were observed in all the flexed positions following calcaneofibular ligament transection, and the calcaneofibular ligament accounted for 50%-70% of ankle joint complex stability during inversion. The in situ forces in the calcaneofibular ligament under an anterior force, inversion moment, and external rotation moment were larger in the dorsiflexed position than in the plantarflexed position. INTERPRETATION: The calcaneofibular ligament plays a role in stabilizing the ankle joint complex to multidirectional loads and the role differs with load directions. The in situ force of the calcaneofibular ligament is larger at the dorsiflexed position. This ligament provides the primary restraint to the inversion ankle stability.

DOI PubMed

人工膝関節置換術後感染の治療転帰と患者立脚型機能評価

神保 俊介, 寺本 篤史, 鈴木 智之, 木井 雄一郎, 岡田 葉平, 榊原 醸, 山下 敏彦, 渡邉 耕太, 箕輪 剛, 武田 真太郎

日本人工関節学会誌 ( (一社)日本人工関節学会 )  46   489 - 490  2016.12

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TKA(人工膝関節置換術)術後感染症17例を対象に、患者立脚型機能評価としてJKOM(日本版膝関節症機能評価尺度)を用い、治療転帰の関連について検討した。最終術後経過観察期間平均32.8ヵ月の結果、転帰はインプラント温存が2膝、再置換が7膝、再々置換が1膝、関節固定が8膝、インプラント抜去が9膝であった。JKOM総点の平均は再置換群22.0点、再々置換群43.0点、関節固定群40.3点、インプラント抜去群43.7点であり、再置換群の点数が最も低かったが、有意差はみられなかった。JKOM総点と各カテゴリーについては治療転帰により有意差を認めなかったが、ADLと活動度の項目においては再置換群がインプラント抜去群より有意に優れた成績が得られていた。

Three-dimensional analysis of talar trochlea morphology: Implications for subject-specific kinematics of the talocrural joint.

Nozaki S, Watanabe K, Katayose M

Clinical anatomy (New York, N.Y.)   29 ( 8 ) 1066 - 1074  2016.11  [Refereed]  [International journal]

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Three-dimensional (3D) behavior of the talocrural joint is primarily determined by the articular surface morphology of the talar trochlea and tibiofibular mortise. However, morphological features of the anterior and posterior regions of the talar trochlea remain unclear. The objectives of this study were to evaluate anterior and posterior radii of the medial and lateral talar trochlea and to estimate subject-specific kinematics of the talocrural joint. Fifty dry tali were scanned using computed tomography to create 3D bone models. Radii of curvature of the anterior and posterior region at both the medial and lateral trochlea were calculated. Orientations of the dorsiflexion and plantarflexion axis passing through the centers of the circles fitted to the anterior region of the medial and lateral trochlea and through the centers of the circles fitted to the posterior region of the medial and lateral trochlea were evaluated, respectively. The anterior radius of the medial trochlea was significantly smaller than that of the lateral trochlea by a mean of 7.8 mm (P < 0.001). The posterior radius of the medial trochlea was larger than that of lateral trochlea in 30 samples (60%) and vice versa in 20 samples (40%). Unilateral asymmetric shape of anterior trochlea would induce external rotation of the talus during ankle dorsiflexion, whereas bilateral asymmetric shape of posterior trochlea would induce opposite axial rotations among subjects during ankle plantarflexion, which would help the physical therapists to restore talocrural joint motions to ideal state for patients with ankle injuries. Clin. Anat. 29:1066-1074, 2016. © 2016 Wiley Periodicals, Inc.

DOI PubMed

陳旧性足関節外側靱帯損傷の3D MRI所見

寺本 篤史, 榊原 醸, 鈴木 智之, 山下 敏彦, 赤塚 吉紘, 高島 弘幸, 渡邉 耕太

北海道整形災害外科学会雑誌 ( 北海道整形災害外科学会 )  58 ( 1 ) 138 - 138  2016.10

学校スポーツ指導者におけるRICE療法の実態調査

小林 拓馬, 寺本 篤史, 渡邉 耕太, 山下 敏彦

日本臨床スポーツ医学会誌 ( (一社)日本臨床スポーツ医学会 )  24 ( 4 ) S297 - S297  2016.10

距骨骨軟骨損傷の病変部位の検討

寺本 篤史, 倉 秀治, 鈴木 智之, 渡邉 耕太, 山下 敏彦

日本足の外科学会雑誌 ( (一社)日本足の外科学会 )  37 ( 2 ) S191 - S191  2016.10

TKA術後インプラント設置角度の三次元的評価法と二次元的評価法の違い

岡田 葉平, 寺本 篤史, 木井 雄一郎, 鈴木 智之, 榊原 醸, 山下 敏彦, 渡邉 耕太, 名越 智

北海道整形災害外科学会雑誌 ( 北海道整形災害外科学会 )  58 ( 1 ) 91 - 92  2016.10

内側型距骨骨軟骨病変における骨形態の三次元評価

小路 弘晃, 寺本 篤史, 木井 雄一郎, 岡田 葉平, 榊原 醸, 鈴木 智之, 渡邉 耕太, 山下 敏彦

日本足の外科学会雑誌 ( (一社)日本足の外科学会 )  37 ( 2 ) S192 - S192  2016.10