Papers - TAJIMA Takuya
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Screening for musculoskeletal problems in Japanese schoolchildren: a cross-sectional study nested in a cohort（共著） Reviewed
N.Yamaguchi，E.Chosa，K.Yamamoto，K.Kawahara，H.Hamada，N.Taniguchi，T.Tajima，T.Funamoto，S.Kurogi，T.Ota，S.Nakamura
Public Health 139 189 - 197 2016.8
Language：English Publishing type：Research paper (scientific journal)
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ラグビー競技会における医療体制向上と重傷事故発生予防を目的とした安全度評価法の活用 Reviewed
田島卓也、帖佐悦男、山本惠太郎、中村嘉宏、山口奈美、柏木輝行
日本整形外科スポーツ医学会雑誌 32 ( 2 ) 35 - 40 2012.4
Language：Japanese Publishing type：Research paper (scientific journal)
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膝前十字靭帯再再建術症例の検討 Reviewed
田島卓也、山本惠太郎、石田康行、山口奈美、崎浜智美、帖佐悦男
JOSKAS雑誌 36 ( 4 ) 258 - 263 2011.4
Language：Japanese Publishing type：Research paper (scientific journal)
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九州地方にて開催されたラグビー競技会に対する安全度評価 Reviewed
田島卓也、帖佐悦男、山本惠太郎、河原勝博、中村嘉宏、吉川大輔、吉川教恵、柏木輝行、東原潤一郎
日本臨床スポーツ医学会雑誌 16 ( 3 ) 402- - 407 2008.4
Language：Japanese Publishing type：Research paper (scientific journal)
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ラグビー競技会に対する安全度評価について Reviewed
田島卓也
日本臨床スポーツ医学会雑誌 12 ( 3 ) 478 - 482 2004.4
Language：Japanese Publishing type：Research paper (scientific journal)
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医学部ラグビー部員の頚部周囲筋力 Reviewed
田島卓也、田島直也、帖佐悦男、園田典生、山本惠太郎
日本臨床スポーツ医学会雑誌 490 - 494 2002.4
Language：Japanese Publishing type：Research paper (scientific journal)
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医学部ラグビー部員の頚椎変化：初心者における2年間での変化 Reviewed
田島卓也、田島直也、帖佐悦男、園田典生、樋口潤一
九州・山口スポーツ医科学研究会誌 12 86 - 91 2000.4
Language：Japanese Publishing type：Research paper (scientific journal)
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医学部ラグビー部員の頚椎変化(第一報）；初心者における1年間での変化 Reviewed
田島卓也、田島直也、帖佐悦男、園田典生、樋口潤一
日本整形外科スポーツ医学会雑誌 20 ( 1 ) 92 - 97 2000.4
Language：Japanese Publishing type：Research paper (scientific journal)
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医学部ラグビー部員の頚椎変化 Reviewed
田島卓也、田島直也、帖佐悦男、園田典生、樋口潤一
日本整形外科スポーツ医学会雑誌 19 ( 1 ) 63 - 68 1999.4
Language：Japanese Publishing type：Research paper (scientific journal)
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Yang F., Yokoe T., Ouchi K., Tajima T., Kamei N., Chosa E.
Scientific Reports 15 ( 1 ) 10008 2025.12
Authorship：Lead author, Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Scientific Reports
Whether isolated high tibial osteotomy (HTO) or HTO combined with medial meniscus posterior root (MMPR) repair is the optimal surgical treatment of MMPR tears remains controversial. This study compared the biomechanical effects of isolated HTO versus MMPR repair combined with medial open wedge HTO (MOWHTO) or lateral closed wedge HTO (LCWHTO) using finite element analysis (FEA). In this study, the MRI and CT data of the knee joint were used to create an FEA model. MOWHTO and LCWHTO simulations adjusted the mechanical axis to the Fujisawa point, with MMPR conditions simulated as intact, tear, or repaired. The ankle center was fixed and a 1000 N force was applied to the knee. In the LCWHTO models, the posterior tibial slope (PTS) decreased, whereas it increased in the MOWHTO models. Changes in the PTS following HTO influenced the stress distribution in the MMPR. HTO combined with MMPR repair showed a reduction in the maximum contact stress by 5.4–11.4% and increased contact area by 29.5–41.0% in the medial knee compartment relative to isolated HTO. This study demonstrated that MMPR repair combined with LCWHTO would be more protective against stress loading in the MMPR than MMPR repair combined with MOWHTO or isolated HTO.
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ハムストリング近位部損傷における当科での2例の手術経験 Reviewed
土屋 慧祐, 森田 雄大, 田島 卓也, 山口 奈美, 大田 智美, 長澤 誠, 横江 琢示, 帖佐 悦男, 亀井 直輔
整形外科と災害外科 74 ( 3 ) 634 - 636 2025.9
Authorship：Lead author, Last author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：西日本整形・災害外科学会
【はじめに】ハムストリングの肉ばなれはスポーツ外傷において比較的頻繁に経験するが，手術に至るケースは稀である．今回，ハムストリング腱近位部損傷において手術加療を要した2例を経験したので報告する．【症例1】22歳男性，実業団柔道選手．練習中に強制開脚位となり受傷．MRIにて大腿二頭筋腱，半腱様筋腱の坐骨結節からの断裂（JISS分類：3型3度）と診断し手術を施行した．術後6か月で競技復帰し経過良好であった．【症例2】17歳男性，走高跳選手．跳躍時に踏み込んだ際に左臀部痛自覚．MRIにて大腿二頭筋腱損傷（JISS分類：2型3度）と診断し手術施行した．術後3か月で競技復帰し経過良好であった．【考察】スポーツ選手においてハムストリング腱の3型3度損傷は絶対的手術適応であるが，2型損傷においても手術加療を選択する場合がある．今回，2型，3型損傷に対して手術加療を行い，再損傷なく元のレベルに競技復帰可能であり良好な成績を得た．
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偽腫瘤を伴うARMD症例における外転筋機能不全に対して再建を行った2例 Reviewed
榊 昂典, 中村 嘉宏, 坂本 武郎, 舩元 太郎, 山口 洋一朗, 今里 浩之, 藤田 貢司, 帖佐 直紀, 田島 卓也, 帖佐 悦男, 亀井 直輔
整形外科と災害外科 74 ( 3 ) 521 - 524 2025.9
Authorship：Lead author, Last author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：西日本整形・災害外科学会
【背景】人工股関節置換術（以下THA）に関して，近年，金属摩耗や金属腐食に起因した生体反応であるAdverse reaction to metal debris（以下ARMD）でインプラント周囲の偽腫瘍形成，周囲軟部組織損傷による外転筋機能不全に伴う脱臼など再手術を要する報告が散見される．偽腫瘍切除後の軟部組織再建術は難渋することが多い．【目的】ARMD症例の偽腫瘍切除に伴う軟部組織欠損に対する軟部組織再建を行なった2症例に関して手術術式を中心に検討した．【対象】ARMDで偽腫瘍形成を呈した2症例に対して，軟部組織欠損部位に応じて異なる手法を用いて軟部組織再建術を行った．【結果】術後3年経過において脱臼や偽腫瘍再発を認めず，概ね良好な経過を辿っている．【考察】偽腫瘍を伴うARMDでの軟部組織欠損に対して，欠損部および欠損範囲に応じた適切な再建の手段を用いることで脱臼のない良好な術後経過を得られるため，再建の手段として欠損部位に応じた方法を持ち得ることが重要と考える．
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悪性腫瘍と鑑別を要した原発性結核膿瘍の1例 Reviewed
鮫島 勇汰, 大田 智美, 田島 卓也, 山口 奈美, 長澤 誠, 森田 雄大, 横江 琢示, 土屋 慧祐, 帖佐 悦男, 亀井 直輔
整形外科と災害外科 74 ( 4 ) 827 - 830 2025.9
Authorship：Lead author, Last author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：西日本整形・災害外科学会
【はじめに】転移性結核膿瘍の報告は散見されるが，原発病変のない結核膿瘍は稀である．悪性腫瘍と鑑別を要した原発性結核膿瘍の1例を経験したので報告する．【症例】73歳男性．誘因なく背部腫瘤を自覚し，MRIで背部皮下に8×7 cm大で中心部T2 high，T1 low，辺縁部T2 high，lowが混在し，一部胸腔内に浸潤した腫瘤を認めた．PETCTでも腫瘤に高度集積あり，悪性軟部腫瘍を疑った．切開生検術の際，多量の排膿あり，培養で<i>M. tuberculosis</i>が同定され，結核膿瘍の診断となった．INH，RFP，EB，PZAの内服を12か月継続し，現在再発は認めていない．【考察】原発巣のない結核膿瘍は非常に稀であり，炎症で見られる疼痛・発赤・熱感に乏しいことが多く，画像上も悪性腫瘍を疑ったため，排膿を確認するまで結核膿瘍を疑えなかった症例である．結核膿瘍の診断について，文献的考察を加え報告する．
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Early surgery within 48 h for post-injury hip fractures improved clinical outcomes Reviewed
喜多 恒允, 舩元 太郎, 田島 卓也, 帖佐 悦男, 亀井 直輔
Journal of Orthopaedic Science 2025.7
Authorship：Lead author, Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV
Background
A medical fee incentive based on a 48-h target time for hip fracture surgery has been implemented in Japan since 2022. This study aimed to evaluate the clinical outcomes of early surgery within 48 h after hip fracture.
Methods
This study was a retrospective, single-center study. Patients >60 years of age who underwent hip fracture surgery between 2021 and 2022 were eligible. They were divided into 2 groups: 2021 (before implementation of the system) and 2022 (after implementation of the system). The primary outcome was the surgical waiting time after injury. The secondary outcomes were clinical outcomes such as postoperative complication rate, mortality rate at 1 and 6 months after surgery, and length of stay in our institution. To assess the influence of early surgery on these outcomes, an additional analysis was performed in 2 groups: the early group (surgery within 48 h) and the delayed group (surgery beyond 48 h).
Results
In total, 365 patients were included in this study. The surgical waiting time was significantly shortened after the implementation of the system (64.5 h in 2021 vs. 42.8 h in 2022, p < 0.001). There were significant differences between the 2021 and 2022 groups in the complication rate (17 % vs. 9 %, p = 0.03) and length of hospital stay (15 days vs. 13 days, p < 0.001). A multivariate analysis between the early and delayed group showed that early surgery was associated with a lower complication rate and shorter length of stay (p < 0.05).
Conclusion
Efforts to perform early surgery within 48 h of injury following the new reimbursement scheme have contributed to improved clinical outcomes, including lower complication rates and shorter hospital stay in our institution. -
Early surgery within 48 h for post-injury hip fractures improved clinical outcomes. Reviewed
Kita T, Funamoto T, Mori H, Ikejiri H, Tajima T, Chosa E, Kamei N
Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association 2025.7
Language：English Publishing type：Research paper (scientific journal) Publisher：Journal of Orthopaedic Science
Background: A medical fee incentive based on a 48-h target time for hip fracture surgery has been implemented in Japan since 2022. This study aimed to evaluate the clinical outcomes of early surgery within 48 h after hip fracture. Methods: This study was a retrospective, single-center study. Patients >60 years of age who underwent hip fracture surgery between 2021 and 2022 were eligible. They were divided into 2 groups: 2021 (before implementation of the system) and 2022 (after implementation of the system). The primary outcome was the surgical waiting time after injury. The secondary outcomes were clinical outcomes such as postoperative complication rate, mortality rate at 1 and 6 months after surgery, and length of stay in our institution. To assess the influence of early surgery on these outcomes, an additional analysis was performed in 2 groups: the early group (surgery within 48 h) and the delayed group (surgery beyond 48 h). Results: In total, 365 patients were included in this study. The surgical waiting time was significantly shortened after the implementation of the system (64.5 h in 2021 vs. 42.8 h in 2022, p < 0.001). There were significant differences between the 2021 and 2022 groups in the complication rate (17 % vs. 9 %, p = 0.03) and length of hospital stay (15 days vs. 13 days, p < 0.001). A multivariate analysis between the early and delayed group showed that early surgery was associated with a lower complication rate and shorter length of stay (p < 0.05). Conclusion: Efforts to perform early surgery within 48 h of injury following the new reimbursement scheme have contributed to improved clinical outcomes, including lower complication rates and shorter hospital stay in our institution.
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スポーツによる膝複合靭帯損傷例の特徴と傾向. Reviewed
田島卓也*、山口奈美、森田雄大、横江琢示、大田智美、長澤誠、帖佐悦男、亀井直輔
九州・山口スポーツ医・科学研究会誌. 36 ( 1 ) 74 - 78 2025.7
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)
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宮﨑 茂明, 鶴田 来美, 吉永 砂織, 藤井 良宜, 本部 エミ, 舩元 太郎, 坂本 武郎, 田島 卓也, 中村 嘉宏, 荒川 英樹, 中武 潤, 帖佐 悦男
Plos One 20 ( 6 ) e0315353 2025.6
Authorship：Lead author, Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Public Library of Science (PLoS)
Background
The 25-Question Geriatric Locomotive Function Scale (GLFS-25) is one of the tests used to assess the risk of locomotive syndrome (LS). It is a comprehensive tool for measuring LS improvement after total hip arthroplasty (THA) and provides beneficial information for rehabilitation after THA. The primary objective of this study was to clarify LS improvement in patients with hip osteoarthritis (OA) who have undergone unilateral primary THA using GLFS-25. A secondary objective was to identify the impact of THA on each specific GLFS-25 item for optimizing functional recovery.
Methods
The participants of this study were 273 patients who underwent primary THA for hip OA. LS was evaluated using the GLFS-25, stand-up test, and two-step test before receiving THA and three months after THA.
Results
Before THA, items rated as “moderately difficult” (score ≥2) in GLFS-25 included pain-related Q3 and Q4, activities of daily living (ADL)-related Q12, Q13, Q15, and Q18, and social function-related Q21 and Q23. At three months after THA, these subjective symptoms showed significant improvement. Further analysis of the relationship between these subjective symptom improvements and LS improvement revealed that all items, except pain-related Q3, were significantly associated with LS improvement.
Conclusions
Patients experienced not only severe hip pain and physical discomfort but also significant difficulties with activities of daily living (ADL) and social participation before THA. LS improvement after THA was strongly associated with improvements in the subjective symptoms of ADL and social functioning. Based on these findings, rehabilitation strategies that focus on enhancing mobility, improving ADL and social engagement, and optimizing gait function after THA are crucial for further supporting LS recovery. -
Miyazaki S., Tsuruta K., Yoshinaga S., Fujii Y., Hombu A., Funamoto T., Sakamoto T., Tajima T., Nakamura Y., Arakawa H., Nakatake J., Chosa E.
Plos One 20 ( 6 June ) e0315353 2025.6
Language：English Publishing type：Research paper (scientific journal) Publisher：Plos One
Background The 25-Question Geriatric Locomotive Function Scale (GLFS-25) is one of the tests used to assess the risk of locomotive syndrome (LS). It is a comprehensive tool for measuring LS improvement after total hip arthroplasty (THA) and provides beneficial information for rehabilitation after THA. The primary objective of this study was to clarify LS improvement in patients with hip osteoarthritis (OA) who have undergone unilateral primary THA using GLFS-25. A secondary objective was to identify the impact of THA on each specific GLFS-25 item for optimizing functional recovery. Methods The participants of this study were 273 patients who underwent primary THA for hip OA. LS was evaluated using the GLFS-25, stand-up test, and two-step test before receiving THA and three months after THA. Results Before THA, items rated as “moderately difficult” (score ≥2) in GLFS-25 included pain-related Q3 and Q4, activities of daily living (ADL)-related Q12, Q13, Q15, and Q18, and social function-related Q21 and Q23. At three months after THA, these subjective symptoms showed significant improvement. Further analysis of the relationship between these subjective symptom improvements and LS improvement revealed that all items, except pain-related Q3, were significantly associated with LS improvement. Conclusions Patients experienced not only severe hip pain and physical discomfort but also significant difficulties with activities of daily living (ADL) and social participation before THA. LS improvement after THA was strongly associated with improvements in the subjective symptoms of ADL and social functioning. Based on these findings, rehabilitation strategies that focus on enhancing mobility, improving ADL and social engagement, and optimizing gait function after THA are crucial for further supporting LS recovery.
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Yokoe T., Yang F., Tajima T., Yamaguchi N., Morita Y., Chosa E.
Foot and Ankle Surgery 31 ( 1 ) 20 - 24 2025.1
Authorship：Lead author, Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Foot and Ankle Surgery
Background: This study aimed to investigate ankle syndesmosis in healthy subjects under non-weight bearing (NWB) and weight bearing (WB) conditions using two US methods. Methods: The anterior tibiofibular clear space (ATFCS) was measured in healthy subjects in NWB and WB conditions using two US procedures. Method 1 measured 10 mm above the ankle joint and Method 2 measured 30° from the line of 10 mm above the ankle joint. Results: A total of 60 ankles from 30 subjects (male/female, 15/15) were included. There was a significant difference in the ATFCS between the two US methods (p < 0.001), and Method 2 was better at detecting the change in diastasis from NWB to WB conditions. The ATFCS was significantly greater on WB than on NWB, irrespective of the US method. Conclusions: Method 2 was better at detecting diastasis of the syndesmosis from NWB to WB conditions. The influence of WB needs to be considered when evaluating syndesmosis using US. Level of evidence: Cross-sectional cohort study; Level of evidence, Ⅳ
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Yang F., Yokoe T., Ouchi K., Tajima T., Chosa E.
Lecture Notes in Electrical Engineering 1322 LNEE 3 - 12 2025
Authorship：Lead author, Last author, Corresponding author Publishing type：Research paper (scientific journal) Publisher：Lecture Notes in Electrical Engineering
This research explored how different tibial slope (TS) and tibial tunnel angle (TTA) settings impact the tibial tunnel phenomenon in posterior cruciate ligament (PCL) reconstruction using 3D finite element analysis (FEA). Models derived from CT scans of a healthy male recruiter were utilized. Tibial bone tunnels and PCL grafts were designed using SolidWorks with various tunnel angles (60°, 45°, 30°). Anterior wedge high tibial osteotomy (AW-HTO) was conducted to assess the effects of different TS angles (−4°, −8°, native, +8°, +4°). Finite element analysis (FEA) was conducted using specialized software. In each TS model, the maximum equivalent Von Mises stress (VMS) in PCL grafts diminished with an increase in TTA. Similarly, in each TTA model, the maximum VMS in PCL grafts reduced as the TS angle increased. Increasing both TTA and TS decreased the area of “high-contact stress” at the tibial tunnel (stress exceeding 10 MPa), potentially reducing stress at the “killer turn” during PCL reconstruction.