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Affiliation |
Hospital Orthopedic Surgery |
Graduating School 【 display / non-display 】
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-2011.03
Akita University Faculty of Medicine Graduated
Campus Career 【 display / non-display 】
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2026.05-Now
Akita University Hospital Orthopedic Surgery Assistant Professor
Research Achievements 【 display / non-display 】
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Tsukamoto Hiroaki, Saito Kimio, Matsunaga Toshiki, Iwami Takehiro, Saito Hidetomo, Kijima Hiroaki, Miyakoshi Naohisa, Akagawa Manabu, Komatsu Akira, Shimada Yoichi
Progress in Rehabilitation Medicine ( 公益社団法人 日本リハビリテーション医学会 ) 6 ( 0 ) n/a 2021
<p><b>Objectives: </b>The purpose of this study was to clarify the diagnostic accuracy of the mobile assessment of varus thrust using inertial measurement units (IMUs).</p><p><b>Methods: </b>A total of 80 knees in 49 patients were enrolled in this study. On visual analysis of gait to determine the presence or absence of varus thrust, 23 knees were assigned to the Present group, 17 to the Ambiguous group, and 40 to the Absent group. The peak knee varus angular velocities (PVVs), measured by quantitative gait analysis using nine-axis IMUs, were compared between these three groups. A receiver operating characteristic curve for the relationship between the visual assessment of varus thrust (Present and Ambiguous) and the measured PVV was created, and the cut-off PVV for visualized varus thrust was determined as the highest point for both sensitivity and specificity.</p><p><b>Results: </b>The mean PVVs were significantly different between the three groups (Present, 47.7 ± 8.2 degree/s, Ambiguous, 34.1 ± 10.5 degree/s, and Absent, 28.1 ± 8.3 degree/s, respectively, ANOVA P=0.000). The PVV cut-off value for visualized varus thrust was 28.1 degree/s, yielding a sensitivity of 0.957 and a specificity of 0.579.</p><p><b>Conclusions: </b>A PVV <28.1 degree/s is useful for ruling out varus thrust during gait. This quantitative varus thrust assessment method using IMUs has clinical utility as a screening test.</p>
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SHIMADA Yoichi, AKAGAWA Manabu, TSUKAMOTO Hiroaki, MIYAKOSHI Naohisa, SAITO Hidetomo, SAITO Kimio
Journal of the Eastern Japan Association of Orthopaedics and Traumatology ( The Eastern Japan Association of Orthopaedics and Traumatology ) 30 ( 2 ) 155 - 163 2018
<p>Around knee osteotomy (AKO), Uni-compartmental Knee Arthroplasty (UKA) and Total Knee Arthroplasty (TKA) were well-established procedure to treat medial osteoarthritis. Physiological joint orientation was re-acquired by Double Level Osteotomy. Depressed medial tibial plateau could be reduced by Tibial Condylar Valgus Osteotomy. Thus, deformity created by medial knee osteoarthritis (OA) could be reduced if use of these procedures even if severely advanced knee OA. We compared the clinical results between TKA and AKO. The subjects were surveyed clinical scores (New KSS, KOOS, Oxford knee score, JOA score) at 36 knees (average age: 71.9 years, follow-up period: 22.4 months) and compared with AKO group (14 knees) and TKA (22 knees). In the New KSS, the AKO group was significantly higher in postoperative functional activity and advanced activity. The subscale pain of KOOS was significantly higher in the TKA group. AKO was supposed to be one of procedures to treat advanced knee OA.</p>
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AKAGAWA Manabu, SAITO Hidetomo, MIYAKOSHI Naohisa, SHIMADA Yoichi, SAITO Kimio, SASAKI Kana
Journal of the Eastern Japan Association of Orthopaedics and Traumatology ( The Eastern Japan Association of Orthopaedics and Traumatology ) 30 ( 1 ) 86 - 88 2018