Papers - Sato, Kazuki

An autopsy of a case of sporadic Creutzfeldt-Jakob disease with MM1+2C+2T

Nakayama, Y; Sano, T; Suto, Y; Adachi, T; Mizutani, M; Sato, K; Takeuchi, A; Kitamoto, T; Miyachi, T; Takao, M

JOURNAL OF NEUROPATHOLOGY AND EXPERIMENTAL NEUROLOGY 81 ( 6 ) 483 - 483 2022.05

ISSN  0022-3069

Large magnetocapacitance beyond 420% in epitaxial magnetic tunnel junctions with an MgAl₂O₄ barrier

Sato, K; Sukegawa, H; Ogata, K; Xiao, G; Kaiju, H

SCIENTIFIC REPORTS 12 ( 1 ) 7190 2022.05

ISSN  2045-2322

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Preserved intersegmental coordination during locomotion after cervical spinal cord injury in common marmosets

Sato, Y; Kondo, T; Uchida, A; Sato, K; Yoshino-Saito, K; Nakamura, M; Okano, H; Ushiba, J

BEHAVIOURAL BRAIN RESEARCH 425   113816 2022.05

ISSN  0166-4328

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Tumor-specific interendothelial adhesion mediated by FLRT2 facilitates cancer aggressiveness

Ando, T; Tai-Nagara, I; Sugiura, Y; Kusumoto, D; Okabayashi, K; Kido, Y; Sato, K; Saya, H; Navankasattusas, S; Li, DY; Suematsu, M; Kitagawa, Y; Seiradake, E; Yamagishi, S; Kubota, Y

JOURNAL OF CLINICAL INVESTIGATION 132 ( 6 )  2022.03

ISSN  0021-9738

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First gadolinium loading to Super-Kamiokande

Abe, K; Bronner, C; Hayato, Y; Hiraide, K; Ikeda, M; Imaizumi, S; Kameda, J; Kanemura, Y; Kataoka, Y; Miki, S; Miura, M; Moriyama, S; Nagao, Y; Nakahata, M; Nakayama, S; Okada, T; Okamoto, K; Orii, A; Pronost, G; Sekiya, H; Shiozawa, M; Sonoda, Y; Suzuki, Y; Takeda, A; Takemoto, Y; Takenaka, A; Tanaka, H; Watanabe, S; Yano, T; Han, S; Kajita, T; Okumura, K; Tashiro, T; Xia, J; Megias, GD; Bravo-Berguño, D; Labarga, L; Marti, L; Zaldivar, B; Pointon, BW; Blaszczyk, FDM; Kearns, E; Raaf, JL; Stone, JL; Wan, L; Wester, T; Bian, J; Griskevich, NJ; Kropp, WR; Locke, S; Mine, S; Smy, MB; Sobel, HW; Takhistov, V; Hill, J; Kim, JY; Lim, IT; Park, RG; Bodur, B; Scholberg, K; Walter, CW; Bernard, L; Coffani, A; Drapier, O; El Hedri, S; Giampaolo, A; Gonin, M; Mueller, TA; Paganini, P; Quilain, B; Ishizuka, T; Nakamura, T; Jang, JS; Learned, JG; Anthony, LHV; Martin, D; Scott, M; Sztuc, AA; Uchida, Y; Cao, S; Berardi, V; Catanesi, MG; Radicioni, E; Calabria, NF; Machado, LN; De Rosa, G; Collazuol, G; Iacob, F; Lamoureux, M; Mattiazzi, M; Ospina, N; Ludovici, L; Maekawa, Y; Nishimura, Y; Friend, M; Hasegawa, T; Ishida, T; Kobayashi, T; Jakkapu, M; Matsubara, T; Nakadaira, T; Nakamura, K; Oyama, Y; Sakashita, K; Sekiguchi, T; Tsukamoto, T; Boschi, T; Gao, J; Di Lodovico, F; Migenda, J; Taani, M; Zsoldos, S; Kotsar, Y; Nakano, Y; Ozaki, H; Shiozawa, T; Suzuki, AT; Takeuchi, Y; Yamamoto, S; Ali, A; Ashida, Y; Feng, J; Hirota, S; Kikawa, T; Mori, M; Nakaya, T; Wendell, RA; Yasutome, K; Fernandez, P; McCauley, N; Mehta, P; Tsui, KM; Fukuda, Y; Itow, Y; Menjo, H; Niwa, T; Sato, K; Tsukada, M; Lagoda, J; Lakshmi, SM; Mijakowski, P; Zalipska, J; Jiang, J; Jung, CK; Vilela, C; Wilking, MJ; Yanagisawa, C; Hagiwara, K; Harada, M; Horai, T; Ishino, H; Ito, S; Kitagawa, F; Koshio, Y; Ma, W; Piplani, N; Sakai, S; Barr, G; Barrow, D; Cook, L; Goldsack, A; Samani, S; Wark, D; Nova, F; Yang, JY; Jenkins, SJ; Malek, M; McElwee, JM; Stone, O; Thiesse, MD; Thompson, LF; Okazawa, H; Kim, SB; Seo, JW; Yu, I; Ichikawa, AK; Nakamura, K; Nishijima, K; Koshiba, M; Iwamoto, K; Nakajima, Y; Ogawa, N; Yokoyama, M; Martens, K; Vagins, MR; Kuze, M; Izumiyama, S; Yoshida, T; Inomoto, M; Ishitsuka, M; Ito, H; Kinoshita, T; Matsumoto, R; Ohta, K; Shinoki, M; Suganuma, T; Martin, JF; Tanaka, HA; Towstego, T; Akutsu, R; Hartz, M; Konaka, A; de Perio, P; Prouse, NW; Chen, S; Xu, BD; Posiadala-Zezula, M; Hadley, D; O'Flaherty, M; Richards, B; Jamieson, B; Walker, J; Minamino, A; Okamoto, K; Pintaudi, G; Sano, S; Sasaki, R

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 1027 2022.03

ISSN  0168-9002

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Factors Contributing to Residual Low Back Pain after Osteoporotic Vertebral Fractures

Inose, H; Kato, T; Ichimura, S; Nakamura, H; Hoshino, M; Takahashi, S; Togawa, D; Hirano, T; Tokuhashi, Y; Ohba, T; Haro, H; Tsuji, T; Sato, K; Sasao, Y; Takahata, M; Otani, K; Momoshima, S; Hirai, T; Yoshii, T; Okawa, A

JOURNAL OF CLINICAL MEDICINE 11 ( 6 )  2022.03

ISSN  2077-0383

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Effects of Dual Task Interference on Biomechanics of the Entire Lower Extremity During the Drop Vertical Jump

Imai S., Harato K., Morishige Y., Kobayashi S., Niki Y., Sato K., Nagura T.

Journal of Human Kinetics (Journal of Human Kinetics)  81 ( 1 ) 5 - 14 2022.02

ISSN  16405544

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The dual task is an important factor affecting knee biomechanics during jump-landing tasks. Athletes often have trouble in performing two tasks concurrently and a dual task can deteriorate landing performance. However, it is still unknown whether a dual task will affect the entire lower extremity. The purpose of this study was to clarify the effects of cognitive task interference on biomechanics of hip and ankle joints as well as the knee joint during the drop vertical jump (DVJ). A total of 20 female collegiate athletes participated in the study. Athletes performed a DVJ with or without a cognitive task. The DVJ was captured using a motion analysis system. Mental arithmetic of 2-digit addition was used as a cognitive task. Maximum vertical ground reaction force (vGRF), joint angles at initial contact (IC), joint moments within 40 milliseconds (ms) after IC, and joint angles and moments at peak vGRF were assessed. The data were statistically compared between with and without a cognitive task condition using a two-tailed paired t-test or the Wilcoxon singed rank test. The peak external knee abduction moment on both limbs within 40 ms after IC during the DVJ was significantly larger in the dual task than in the single task with less knee and hip flexion at initial contact. In addition, all moments of hip and ankle joints within 40 ms after IC were significantly larger in the dual task than in the single task accompanied with greater vGRF, except for the hip internal rotation moment. Cognitive tasks during a DVJ will result in biomechanical changes of the entire lower extremity in female athletes.

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Factors that affect menarche in Japanese national-level track-and-field athletes

Tsukahara Y., Namba A., Kamada H., Torii S., Tabata S., Yamasawa F., Sato K.

American Journal of Human Biology (American Journal of Human Biology)  34 ( 2 )  2022.02

ISSN  10420533

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Objectives: The minimum body mass index (BMI) required to menarche and the relationship between the training onset age of sports and menarche is not fully understood. The aim of this study is to elucidate the minimum BMI required to attain menarche in female adolescent athletes competing at a national level, and to determine how the occurrence of menarche is associated with training onset age in track-and-field athletes. Methods: Overall, 134 sprinters and 44 long-distance (LD) runners of ninth-grade females at a national level were enrolled and an anonymous questionnaire was administered. Results: As BMI increased, the proportion of athletes who had attained menarche increased. The BMI cutoff values for menarche were 17.3 and 17.1 kg/m2 for sprinters and LD runners, respectively. Menarche had not occurred in almost 50% of the LD runners who began training at elementary school, and among LD runners, those who began training at elementary school had 18.4 higher odds of not attaining menarche until the age of 15 years as opposed to those who started training after elementary school. Conclusions: The BMI cutoff values could be an indicator for menarche in sprinters and LD runners. For LD runners, starting to compete at elementary school could be a risk factor for delayed menarche.

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Prediction of RNA secondary structure including pseudoknots for long sequences

Sato, K; Kato, Y

BRIEFINGS IN BIOINFORMATICS 23 ( 1 )  2022.01

ISSN  1467-5463

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Total elbow arthroplasty using an augmented reality–assisted surgical technique

Tanji A., Nagura T., Iwamoto T., Matsumura N., Nakamura M., Matsumoto M., Sato K.

Journal of Shoulder and Elbow Surgery (Journal of Shoulder and Elbow Surgery)  31 ( 1 ) 175 - 184 2022.01

ISSN  10582746

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Background: Precision placement of implants in total elbow arthroplasty (TEA) using conventional surgical techniques can be difficult and riddled with errors. Modern technologies such as augmented reality (AR) and 3-dimensional (3D) printing have already found useful applications in many fields of medicine. We proposed a cutting-edge surgical technique, augmented reality total elbow arthroplasty (ARTEA), that uses AR and 3D printing to provide 3D information for intuitive preoperative planning. The purpose of this study was to evaluate the accuracy of humeral and ulnar component placement using ARTEA. Methods: Twelve upper extremities from human frozen cadavers were used for experiments performed in this study. We scanned the extremities via computed tomography prior to performing TEA to plan placement sites using computer simulations. The ARTEA technique was used to perform TEA surgery on 6 of the extremities, whereas conventional (non-ARTEA) techniques were used on the other 6 extremities. Computed tomography scanning was repeated after TEA completion, and the error between the planned and actual placements of humeral and ulnar components was calculated and compared. Results: For humeral component placement, the mean positional error ± standard deviation of ARTEA vs. non-ARTEA was 1.4° ± 0.6° vs. 4.4° ± 0.9° in total rotation (P = .002) and 1.5 ± 0.6 mm vs. 8.6 ± 1.3 mm in total translation (P = .002). For ulnar component placement, the mean positional error ± standard deviation of ARTEA vs. non-ARTEA was 5.5° ± 3.1° vs. 19.5° ± 9.8° in total rotation (P = .004) and 1.5 ± 0.4 mm vs. 6.9 ± 1.6 mm in total translation (P = .002). Both rotational accuracy and translational accuracy were greater for joint components replaced using the ARTEA technique compared with the non-ARTEA technique (P < .05). Conclusion: Compared with conventional surgical techniques, ARTEA had greater accuracy in prosthetic implant placement when used to perform TEA.

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Guidelines for Reproductive Medicine in Japan

Yamada, M; Ishikawa, T; Iwasa, T; Oishi, H; Osuka, S; Oka, K; Ono, S; Ono, M; Orisaka, M; Kanasaki, H; Kawano, Y; Kawamura, K; Kishi, H; Kimura, F; Kuroda, S; Kuwahara, A; Kobayashi, H; Komiya, A; Saito, H; Sato, K; Sato, S; Shiraishi, K; Shirasawa, H; Suzuki, T; Takai, Y; Takae, S; Takahashi, T; Takiuchi, T; Tachibana, M; Tamura, I; Tamura, H; Jwa, SC; Baba, T; Harada, M; Hirata, T; Fukui, A; Fukuda, Y; Fukuhara, S; Maruyama, T; Yumura, Y; Yoshino, O; Hirota, Y; Tsujimura, A; Kuji, N; Osuga, Y

REPRODUCTIVE MEDICINE AND BIOLOGY 21 ( 1 ) e12483 2022.01

ISSN  1445-5781

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Multisystem Imaging Manifestations of Kawasaki Disease

Tsujioka, Y; Handa, A; Nishimura, G; Miura, M; Yokoyama, K; Sato, K; Handa, H; Jinzaki, M; Nosaka, S; Kono, T

RADIOGRAPHICS 42 ( 1 ) 268 - 288 2022.01

ISSN  0271-5333

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Metastatic Neuroblastoma in the Oral Cavity of a Toddler

Hiraga, CK; Suzuki, T; Yamazaki, F; Kawaida, M; Baba, A; Sato, K; Nomura, T

JOURNAL OF DENTISTRY FOR CHILDREN 89 ( 1 ) 52 - 56 2022.01

ISSN  1551-8949

Volar Transfer of the Lateral Band With Transverse Retinacular Ligament for the Correction of Swan Neck Deformity

Suzuki T., Kimura H., Matsumura N., Sato K., Nakamura M., Iwamoto T.

Hand (Hand)   2022

ISSN  15589447

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Background: This retrospective study was designed to evaluate a surgical treatment for swan neck deformity of the fingers involving the volar transfer of the lateral band using the transverse retinacular ligament. Methods: Ten patients who underwent this surgical procedure for swan neck deformity treatment and were followed up for a mean of 26 months (range: 12-65 months) were included in the study. The dorsally located lateral bands were transferred toward the volar aspect of the finger, and their position was maintained using the transverse retinacular ligament. Improvement of the snapping and swan neck deformity was confirmed by intraoperative active motion of the finger. The active range of motion of the affected finger was evaluated pre- and postoperatively. Results: Extension of the proximal interphalangeal (PIP) joint averaged 30° (range: 20°-40°) preoperatively and improved to -2° (range: -5°-0°) postoperatively. Extension of the distal interphalangeal (DIP) joint averaged -30° (range: -15° to -70°) preoperatively and improved to -15° (range: 0° to -55°) postoperatively. The mean improvement in range of motion of the DIP joint was 15° (range: 10°-25°). The flexion of both the PIP and DIP joint did not significantly change in any of the patients postoperatively. Conclusions: Surgical transfer of the lateral band using the transverse retinacular ligament is effective in correcting mild swan neck deformity. Hyperextension of the PIP joint is corrected well, but the severe extension lag of the DIP joint remains uncorrected postoperatively.

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Possibility for Visualizing the Muscle Microstructure by q-Space Imaging Technique

Sera Y., Nakashima D., Hata J., Okano H.J., Sato K., Nakamura M., Nagura T.

Applied Bionics and Biomechanics (Applied Bionics and Biomechanics)  2022 2022

ISSN  11762322

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In the human body, skeletal muscle microstructures have been evaluated only by biopsy. Noninvasive examination of the microstructure of muscles would be useful for research and clinical practice in sports and musculoskeletal areas. The study is aimed at determining if q-space imaging (QSI) can reveal the microstructure of muscles in humans. Forty-three Japanese subjects (controls, distance runners, powerlifting athletes, and teenage runners) were included in this cross-sectional study. Magnetic resonance imaging of the lower leg was performed. On each leg muscle, full width at half maximum (FWHM) which indicated the muscle cell diameters and pennation angle (PA) were measured and compared. FWHM showed significant positive correlations with PA, which is related to muscle strength. In addition, FWHM was higher for powerlifting, control, distance running, and teenager, in that order, suggesting that it may be directing the diameter of each muscle cell. Type 1 and type 2 fibers are enlarged by growth, so the fact that the FWHM of the control group was larger than that of the teenagers in this study may indicate that the muscle fibers were enlarged by growth. Also, FWHM has the possibility to increase with increased muscle fibers caused by training. We showed that QSI had the possibility to depict noninvasively the microstructure like muscle fiber type and subtle changes caused by growth and sports characteristics, which previously could only be assessed by biopsy.

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Clinical Outcomes of Medial Collateral Ligament Reconstruction of the Elbow (Itoh Method) for Baseball Players

Yamada Yuichi, Sato Kazuki, Kinoda Akira

Journal of Japan Elbow Society (Japan Elbow Society)  29 ( 2 ) 186 - 189 2022

ISSN  13497324

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【目的】われわれは，オーバヘッドアスリートの肘内側側副靱帯損傷の治療として靱帯再建術（伊藤法）を実施している．野球選手に対する本手術法の治療成績を検討した．<BR>【対象/方法】1998年8月から2019年8月に手術を施行した投手41名を対象とした．手術時平均年齢は18歳であった．競技復帰状況，投球時肘内側部痛の有無，JOA-JES scoreなどを検討した．<BR>【結果】術後平均経過観察期間は37.6か月であった．全例が野球復帰を果たし，投球再開までの期間は平均6.0か月，試合（実践）復帰までの期間は平均9.8か月であった．復帰レベルの低下を5例に認めた．JOA-JES scoreは術前平均34.1点から術後平均94.1点に改善した．<BR>【結語】野球選手に対する伊藤法の成績について報告した．5例で野球復帰レベルの低下を認めたが，全例競技復帰を果たし手術成績は概ね良好であった．

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Clinical outcome of treatment for simple elbow dislocation

Yamada Yuichi, Kusano Hiroshi, Horiuchi Yukio, Ito Yoshiyasu, Sato Kazuki

Journal of Japan Elbow Society (Japan Elbow Society)  29 ( 2 ) 74 - 77 2022

ISSN  13497324

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【目的】単純性肘関節脱臼に対する治療については未だにコンセンサスが得られていない．我々は積極的に靱帯修復術を行っており，今回その治療成績を報告する．<BR>【方法】2016年より手術を行った21肘を対象とした．術直前に全身麻酔下で肘内外反ストレステストによる不安定性評価を行い，外側: 16例，内側: 20例，両側: 15例を手術適応とした．3週間固定の後に自動運動を開始した．<BR>【結果】最終経過観察時のJOA -JES scoreは96.2点であった．平均肘関節可動域は屈曲138°，伸展-2°であった．全例肘関節不安定性は認めず，良好な治療成績が得られた．<BR>【考察】単純性肘関節脱臼に対する保存療法と手術療法の治療成績には有意差がないとする報告がある一方，保存療法では拘縮や疼痛残存が多いとする報告もある．靭帯修復術の治療成績は良好であり，適応を判断した上での手術療法は非常に有用である．

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A case of posterolateral rotatory instability with hypoplasia of ulnar coronoid process treated with iliac bone graft for reconstruction of the coronoid process

Takeya Hiroaki, Suzuki Taku, Kimura Hiroo, Sato Kazuki, Iwamoto Takuji

Journal of Japan Elbow Society (Japan Elbow Society)  29 ( 2 ) 85 - 89 2022

ISSN  13497324

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【目的】尺骨鉤状突起低形成による後外側不安定性に対して腸骨移植を用いた鉤状突起再建と外側側副靭帯縫合術を行った1例を報告する．<BR>【症例】13歳，男児．1年前より左肘可動時に違和感が持続するが近医では診断がつかず，改善がないために当院紹介受診となった．肘関節伸展時に脱臼感を認めた．画像所見では，両側尺骨鉤状突起低形成とCTや伸展位での単純X線で左肘関節後方脱臼を認めた．尺骨鉤状突起低形成による後外側不安定性と診断し，腸骨を用いた鉤状突起再建と弛緩した外側側副靭帯を縫縮した. 術後18か月の観察時に再脱臼は認めず，骨癒合も得られ良好な経過であった．<BR>【考察】鉤状突起低形成を認める症例において，腸骨移植による鉤状突起の再建ならびに外側側副靭帯縫合によって肘関節の安定性が獲得できた. また通常のX線撮影は肘関節屈曲位で施行するため, 本病態を疑った場合は, CTや伸展位のX線が有用であった．

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Preface for the special issue on Design, Concurrent Engineering and Smart Manufacturing towards Highly Digitalized Society

Morinaga, E; Inoue, M; Hino, R; Iwamura, K; Koga, T; Ogi, T; Sato, K; Ura, S; Yanagisawa, H; Ito, K; Kato, T; Nonaka, T; Okubo, M; Tanaka, T; Yamada, S; Yamada, S

JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING 16 ( 5 )  2022

ISSN  1881-3054

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Platelet-rich plasma in the treatment of medial epicondylitis

Suzuki Taku, Hayakawa Katsuhiko, Nakane Takashi, Takeya Hiroaki, Matsuo Tomoki, Kimura Hiroo, Sato Kazuki, Iwamoto Takuji

Journal of Japan Elbow Society (Japan Elbow Society)  29 ( 2 ) 222 - 224 2022

ISSN  13497324

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【目的】上腕骨内側上顆炎に対するPRP 療法の臨床成績，MRI画像成績について報告する．<BR>【対象と方法】上腕骨内側上顆炎に対してPRP療法を施行した5例を対象とした．評価はPRP療法施行前，施行後1，3，6，12ヵ月時の疼痛 （VAS），握力健側比，屈筋腱付着部のMRI像に関して調査した．MRIの評価は正常 （0），軽度 （1），中程度 （2），重度 （3）の4段階にて評価した．<BR>【結果】PRP療法施行前，施行後1，3，6，12か月における平均VAS は78→68→50→35→20，平均握力健側比も75→83→89→93→95%と経時的に低下し，MRI評価も1.6→1.0→0.4→0.2→0.2と治療前と比べて改善した．<BR>【考察】上腕骨内側上顆炎に対するPRP療法は臨床成績、画像成績共に良好であった．

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