論文 - 山口 奈美
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Predictors of Spondylolysis on Magnetic Resonance Imaging in Adolescent Athletes With Low Back Pain 査読あり
Yokoe T., Tajima T., Sugimura H., Kubo S., Nozaki S., Yamaguchi N., Morita Y., Chosa E.
Orthopaedic Journal of Sports Medicine 2021年1月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Symptomatic discoid lateral meniscus shows a relationship between types and tear patterns, and between causes of clinical symptom onset and the age distribution 査読あり
Yamaguchi N., Chosa E., Tajima T., Morita Y., Yokoe T.
Knee Surgery, Sports Traumatology, Arthroscopy 2021年1月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Minimizing the expected value of the asymmetric loss function and an inequality for the variance of the loss. 査読あり
Yamaguchi N, Yamaguchi Y, Nishii R
Journal of applied statistics 48 ( 13-15 ) 2348 - 2368 2021年
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Yokoe T., Tajima T., Kawagoe S., Yamaguchi N., Morita Y., Chosa E.
Orthopaedic Journal of Sports Medicine 9 ( 11 ) 23259671211056305 2021年
担当区分：筆頭著者, 最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Orthopaedic Journal of Sports Medicine
Background: Stress ultrasonography (US) has been shown to be a valid procedure for evaluating chronic anterior talofibular ligament (ATFL) injury. The ratio of stress/nonstress ATFL length (ATFL ratio) as measured on US is clinically useful; however, there are no published normative data concerning this ratio. Purpose: To report a normative value of the ATFL ratio on US and evaluate the relationships between sex, generalized joint laxity (GJL), and the grade of anterior drawer test (ADT). Study Design: Cross-sectional study; Level of evidence, 3. Methods: The ATFL lengths were prospectively measured in the stress and nonstress positions (manual maximal anterior drawer position) for participants with noninjured ankles from March 2020 to March 2021. GJL was defined as a Beighton score ≥4. A manual ADT was also performed. The ATFL ratio was calculated, and the relationships between sex, GJL, and ADT grade were evaluated. Results: A total of 333 ankles in 184 participants (mean age, 24.5 ± 2.7 years; range, 20-33 years) were eligible for the analysis. GJL was found in 69 ankles (20.7%). The mean ATFL ratio was 1.08 ± 0.04 (95% CI, 1.08-1.09; range, 1.01-1.24), and there was a significant difference between male (1.07 ± 0.04; 95% CI, 1.07-1.08; range, 1.02-1.23) and female (1.09 ± 0.04; 95% CI, 1.08-1.10; range, 1.01-1.24) ankles (P =.001). In male ankles, the ATFL ratio was significantly greater in participants with GJL (1.11 ± 0.06 vs 1.07 ± 0.03; P =.02) or a higher grade of ADT (grade 2 vs grade 1: 1.11 ± 0.06 vs 1.07 ± 0.03, P =.002). These findings were not observed in female ankles. Conclusion: The normative value of the ATFL ratio on stress US was 1.07 ± 0.04 in men and 1.09 ± 0.04 in women. The ATFL ratio was affected by the presence of GJL in men but not in women. These findings will be useful for future studies seeking to establish the cutoff value of the ATFL ratio for diagnosing chronic lateral ankle stability on stress US.
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コリジョンスポーツにおける至適な頸部周囲筋力と頸椎アライメントの解明：重症頭頸部外傷を予防するために 査読あり
田島卓也、山口奈美、黒木修司、森田雄大、帖佐悦男
デサントスポーツ科学 41 135 - 144 2020年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Comparison of symptomatic spondylolysis in young soccer and baseball players 査読あり
横江 琢示, 田島 卓也, 山口 奈美, 森田 雄大, 帖佐 悦男
Journal of Orthopaedic Surgery and Research 15 378 2020年9月
担当区分：筆頭著者, 最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：BMC
Background
Spondylolysis is the main cause of low back pain (LBP) in young athletes. There are few studies analyzing the difference of spondylolysis among young athletes with different sports activities. The purpose of this study was to compare the clinical factors and distribution of the lesions of spondylolysis on magnetic resonance imaging (MRI) scans in young soccer and baseball players with symptomatic spondylolysis.
Methods
The medical records of 267 young athletes aged 7 to 18 years old who underwent MRI to evaluate the cause of LBP between 2017 and 2020 were retrospectively reviewed to identify patients with spondylolysis. Of the young athletes with symptomatic spondylolysis, clinical factors and MRI findings in soccer and baseball players were retrospectively evaluated. The clinical factors were age, sex, interval from onset of LBP to MRI, and side of the dominant leg in the sports field. MRI findings included number, lumbar level, and side of the lesions.
Results
A total of 33 soccer players (mean age, 15.4 ± 1.4 years) and 49 baseball players (mean age, 15.4 ± 1.6 years) with symptomatic spondylolysis were enrolled. All patients were male. No significant differences were noted in age and the interval from onset of LBP to MRI between the groups. Soccer players had greater numbers of multiple (p < 0.001) and bilateral (p < 0.001) lesions than baseball players. The dominant side of the hand for pitching or batting was correlated with the contralateral-side lesions in baseball players (p = 0.001).
Conclusions
The distribution of the lesions of spondylolysis differed in young soccer and baseball players. Pitching or batting with the dominant-side hand would be associated with contralateral-side lesions in baseball players. Sports-specific movements and the side of the dominant leg should be considered when treating young athletes with symptomatic spondylolysis. -
Comparison of symptomatic spondylolysis in young soccer and baseball players 査読あり
Yokoe T., Tajima T., Sugimura H., Kubo S., Nozaki S., Yamaguchi N., Morita Y., Chosa E.
Journal of Orthopaedic Surgery and Research 15 ( 1 ) 378 2020年9月
担当区分：筆頭著者, 最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Orthopaedic Surgery and Research
Background: Spondylolysis is the main cause of low back pain (LBP) in young athletes. There are few studies analyzing the difference of spondylolysis among young athletes with different sports activities. The purpose of this study was to compare the clinical factors and distribution of the lesions of spondylolysis on magnetic resonance imaging (MRI) scans in young soccer and baseball players with symptomatic spondylolysis. Methods: The medical records of 267 young athletes aged 7 to 18 years old who underwent MRI to evaluate the cause of LBP between 2017 and 2020 were retrospectively reviewed to identify patients with spondylolysis. Of the young athletes with symptomatic spondylolysis, clinical factors and MRI findings in soccer and baseball players were retrospectively evaluated. The clinical factors were age, sex, interval from onset of LBP to MRI, and side of the dominant leg in the sports field. MRI findings included number, lumbar level, and side of the lesions. Results: A total of 33 soccer players (mean age, 15.4 ± 1.4 years) and 49 baseball players (mean age, 15.4 ± 1.6 years) with symptomatic spondylolysis were enrolled. All patients were male. No significant differences were noted in age and the interval from onset of LBP to MRI between the groups. Soccer players had greater numbers of multiple (p < 0.001) and bilateral (p < 0.001) lesions than baseball players. The dominant side of the hand for pitching or batting was correlated with the contralateral-side lesions in baseball players (p = 0.001). Conclusions: The distribution of the lesions of spondylolysis differed in young soccer and baseball players. Pitching or batting with the dominant-side hand would be associated with contralateral-side lesions in baseball players. Sports-specific movements and the side of the dominant leg should be considered when treating young athletes with symptomatic spondylolysis.
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Clinical and Radiographic Outcomes of Double-Bundle Anterior Cruciate Ligament Reconstruction for Asian Patients with Bone-Patellar Tendon-Bone and Gracilis Tendon Grafts: A Matched-Control Comparison 査読あり
Takuya Tajima、Nami Yamaguchi、Yudai Morita、Makoto Nagasawa、Tomomi Ota、Yoshihiro Nakamura、Takuji Yokoe、Etsuo Chosa
The Journal of Knee Surgery 1 - 8 2020年5月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Prion protein interacts with the metabotropic glutamate receptor 1 and regulates the organization of Ca(2+) signaling. 査読あり
Matsubara T, Satoh K, Homma T, Nakagaki T, Yamaguchi N, Atarashi R, Sudo Y, Uezono Y, Ishibashi D, Nishida N
Biochemical and biophysical research communications 525 ( 2 ) 447 - 454 2020年4月
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Elective one-stage all four-ligament reconstruction after open knee dislocation: A case report 査読あり
Yokoe T., Tajima T., Yamaguchi N., Chosa E.
Journal of Orthopaedic Science 27 ( 3 ) 743 - 749 2019年9月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Orthopaedic Science
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上腕骨小頭離断性骨軟骨炎手術例と野球検診の関係 査読あり
岩佐一真、長澤誠、田島卓也、山口奈美、大田智美、森田雄大、帖佐悦男
九州・山口スポーツ医・科学研究会誌 31 35 - 37 2019年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Early weight-bearing after anterior cruciate ligament reconstruction with hamstring grafts induce femoral bone tunnel enlargement: A prospective clinical and radiographic study 査読あり
Tajima T., Yamaguchi N., Nagasawa M., Morita Y., Nakamura Y., Chosa E.
BMC Musculoskeletal Disorders 20 ( 1 ) 274 2019年6月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：BMC Musculoskeletal Disorders
© 2019 The Author(s). Background: Bone tunnel enlargement following primary anterior cruciate ligament (ACL) reconstruction with soft tissue graft might be a severe disadvantage for revision surgery. The postoperative rehabilitation protocol including the non-weight-bearing periods were different depending on the surgeon or institute. To determine the relationship between femoral bone tunnel enlargement and the postoperative non-weight-bearing period after double-bundle ACL reconstruction with hamstring grafts. Methods: Forty-two patients who underwent primary double-bundle ACL reconstruction with hamstring grafts were divided into two postoperative non-weight-bearing protocol groups: 1-week non-weight-bearing postoperatively (group A, n = 19); and 2-week non-weight-bearing (group B, n = 18). Five cases were excluded due to additional knee injury, pregnancy, and lost to follow-up. Bone tunnel enlargement was evaluated by computed digital radiographs (anteroposterior (A-P) and lateral views) taken on the first postoperative day and at 12 months. Each tunnel diameter was shown as a percentage to the maximum joint width of the proximal tibia in the A-P view, or a percentage of the maximum diameter of the patella in the lateral view. To determine the incidence of tunnel enlargement, percentage diameter changes of more than 10% were defined as an enlarged tunnel. The magnitude of tunnel enlargement and the standard clinical evaluation were also evaluated. Results: There were no significant differences between groups in the incidences of anteromedial and posterolateral bone tunnel enlargement, both in the A-P and lateral views (2 × 2 Chi-squared test). The magnitude of femoral posterolateral bone tunnel enlargement was significantly greater in group A in the A-P view (p = 0.01) and lateral view (p = 0.03) (Mann Whitney U-test). Twelve months after surgery, the Lysholm score and Tegner activity level scale were not significantly different between the groups. Conclusions: This prospective, clinical and radiographical study showed that early weight-bearing protocol after double-bundle ACL reconstruction with hamstring grafts might have the potential risk of significant postoperative femoral bone tunnel enlargement of the posterolateral bundle. There was no significant difference in clinical outcomes by postoperative non-weight-bearing period. To reduce and prevent the femoral bone tunnel enlargement, the comprehensive management could be considered and required to establish the suitable early stage rehabilitation protocol after surgery. Trial registration: Trial registration number; UMIN000036212. Scientific title: Prospective comparisons of femoral tunnel enlargement with two different postoperative non weight bearing periods after double-bundle anterior cruciate ligament reconstruction with hamstring grafts. Registered date: 15 Mar 2019 (retrospectively registered).
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サッカー日本女子代表（なでしこジャパン）のメディカルサポートを通して 招待あり 査読あり
山口奈美、田島卓也、長澤誠、森田雄大、帖佐悦男、園田典生
日本整形外科スポーツ医学会雑誌 39 ( 2 ) 10 - 14 2019年5月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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全国レベルの高校空手道部の新入生メディカルチェック：3年間の結果より 査読あり
北堀貴史、森田雄大、長澤誠、黒木修司、山口奈美、田島卓也、石田康行、帖佐悦男
日本臨床スポーツ医学会誌 27 ( 2 ) 266 - 272 2019年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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ヘモグロビンは滑膜からADAMTS-5，-9の発現を亢進させる：関節血症の軟骨変性に及ぼす影響 査読あり
田島卓也、谷口昇、山口奈美、帖佐悦男
日本関節鏡・膝・スポーツ整形外科学会雑誌 44 ( 1 ) 292 - 293 2019年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Double crushを呈していた橈尺骨骨幹部骨折後尺骨神経障害の1例 査読あり
藤田貢司、石田康行、谷口昇、田島卓也、山口奈美、長澤誠、森田雄大、関本朝久、帖佐悦男
整形外科と災害外科 67 ( 4 ) 674 - 676 2018年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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サッカー日本女子代表：メディカルサポートの実際と課題 招待あり 査読あり
山口奈美、石田康行、田島卓也、森田雄大、帖佐悦男、園田典生
日本整形外科スポーツ医学会雑誌 38 ( 3 ) 5 - 9 2018年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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宮崎県少年野球検診−検診結果と可動域の関係− 査読あり
長澤誠、石田康行、谷口昇、田島卓也、山口奈美、三橋龍馬、川野啓介、帖佐悦男
日本関節鏡・膝・スポーツ整形外科學會雑誌 43 ( 2 ) 562 - 563 2018年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Larson変法を用いた膝後外側支持機構再建術 査読あり
山口奈美、田島卓也、石田康行、谷口昇、大田智美、長澤誠、帖佐悦男
日本関節鏡・膝・スポーツ整形外科學會雑誌 43 ( 2 ) 506 - 507 2018年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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脛骨付着部を温存した自家半健様筋健グラフトによるＭＣＬ再建術の術後短期成績 査読あり
田島卓也、山口奈美、谷口昇、石田康行、大田智美、長澤誠、帖佐悦男
日本関節鏡・膝・スポーツ整形外科學會雑誌 43 ( 1 ) 180 - 181 2018年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌）