論文 - 田島 卓也
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Risk factors associated with throwing injuries in young baseball players 査読あり
長澤 誠, 田島 卓也, 山口 奈美, 森田 雄大, 横江 琢示, 大田 智美, 石田 康行, 帖佐 悦男
Journal of Shoulder and Elbow Surgery 32 ( 8 ) 1673 - 1680 2023年8月
担当区分：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：Elsevier
Background
Few studies have retrospectively analyzed the relationship between joint range of motion (ROM) and muscle flexibility and shoulder and elbow throwing injuries in a large number of elementary school baseball players. The purpose of this study was to retrospectively identify the physical factors related to shoulder and elbow throwing injuries in younger baseball players.
Methods
A total of 2466 younger baseball players belonging to our Prefecture Rubber Baseball Federation who participated in medical check-ups from 2016 to 2019 were analyzed. Players completed a questionnaire and had a medical check-up that included a physical examination and ultrasonography. ROM (internal rotation [IR] angle and external rotation angle) of the shoulder and hip and the finger-to-floor distance and heel-to-buttock distance were measured. The straight leg raise was also performed. The results of two groups (normal group and injury group) were compared using the χ2 test, Mann-Whitney U test, and Student t test. Stepwise forward logistic regression models were developed to identify risk factors.
Results
On univariate analysis, nine of the 13 evaluated items showed significant decreases in ROM and muscle flexibility in the injury group. On multiple logistic regression analysis, grade, finger-to-floor distance, IR angle of the dominant side shoulder, and IR angle of the nondominant side hip were significantly associated with the occurrence of throwing injuries. Decreased total shoulder angle was observed not only on the dominant side but also on the nondominant side in the injury group.
Conclusion
Decreased ROM and muscle flexibility were risk factors for baseball-related throwing injuries in elementary school baseball players. To prevent shoulder and elbow throwing injuries, players, coaches, medical staff, and parents need to be aware of these findings. -
Shear stress in the medial meniscus posterior root during daily activities.
Yokoe T, Ouchi K, Yamaguchi Y, Enzaki M, Tajima T, Chosa E
The Knee 43 176 - 183 2023年7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：Knee
Background: Medial meniscus posterior root (MMPR) tears have been reported to occur in middle-aged patients with minor trauma. However, the injury mechanism of MMPR tears remains unclear. The purpose of this study was to evaluate the shear stress in the MMPR during daily activities using a finite-element analysis. Methods: Subject-specific finite-element models of the knee joint of a healthy middle-aged subject were developed from computed tomographic and magnetic resonance images. A three-dimensional motion capture system “VICON” was used to capture four daily activities: walking, jogging, descending stairs, and landing. The knee joint reaction force was estimated using the AnyBody modeling system. Based on these procedures, the shear stress in the MMPR was calculated during each motion. The shear stress in the lateral meniscus posterior root (LMPR) was also measured to compare the stress between the MMPR and LMPR. Results: The shear stress in the MMPR increased as the knee flexion angle increased during each motion. Descending stairs caused more than two-fold greater stress in the MMPR than walking and a similar or greater amount of stress than jogging. The LMPR tended to receive more shear stress than the MMPR throughout each motion. Conclusions: The present study showed that descending stairs confers almost the same amount of shear stress to the MMPR as jogging. The results of the present study may suggest that descending motion of the knee is an important cause of MMPR tear, and the initiation of descending stairs should be delayed after MMPR repair.
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宮崎式サーフィン競技安全度評価を1シーズン使用してみて 査読あり
小島岳史、柏木輝行、柏木悠吾、福嶋研人、吉田尚紀、石田翔太郎、帖佐悦男、田島卓也
九州・山口 スポーツ医・科学研究会誌 34 28 - 32 2023年7月
記述言語：日本語 掲載種別：研究論文（研究会，シンポジウム資料等） 出版者・発行元：Elsevier
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Shear stress in the medial meniscus posterior root during daily activities 査読あり
Takuji Yokoe,Koki Ouchi,Yoichiro Yamaguchi,Masahiro Enzaki, Takuya Tajima,Etsuo Chosa
The Knee 43 176 - 183 2023年6月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要） 出版者・発行元：Elsevier
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Evaluation of Sit-to-Stand Movement in Older Adults with Locomotive Syndrome Using the Nintendo Wii Balance Board. Sensors 査読あり
Go Yamako, Niroshan G Punchihewa, Hideki Arakawa, Takuya Tajima, Etsuo Chosa
Sensors 2023年5月
記述言語：英語 掲載種別：研究論文（学術雑誌）
DOI： 10.3390/s23073368
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Ureter position and risk of ureteral injury during lateral lumbar interbody fusion 査読あり
Makoto Nagasawa,MD,Takuya Tajima,MD,PhD,Shuichi Kawagoe, MD,Nami Yamaguchi,MD,PhD, Yudai Morita,MD,Takuji Yokoe, MD,Tomomi Ota,MD,Toshihiko Izumi, MD, PhD,Yasuyuki Ishida, MD,Etsuo Chosa,MD,PhD
Journal of Clinical Medicine 32 ( 8 ) 1673 - 1680 2023年5月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要） 出版者・発行元：Elsevier
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Imazato H, Takahashi N, Hirakawa Y, Yamaguchi Y, Hiyoshi M, Tajima T, Chosa E, Sawaguchi A
Scientific reports 13 ( 1 ) 6352 2023年4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：Scientific Reports
Recent physiological studies have shown that the deep fascia has received much attention concerning clinical medicine; however, histological examination of the deep fascia has not been well established. In this study, we aimed to clarify and visualize the structure of the deep fascia by taking advantage of cryofixation techniques and low-vacuum scanning electron microscopy. As a result, the ultrastructural observations revealed three-dimensional stratification of the deep fascia composed of three layers: the first superficial layer consisting of collagen fibers extending in various directions with blood vessels and peripheral nerves; the second intermediate layer formed by single straight and thick collagen fibers with flexibility; and the third deepest layer, consisting of relatively straight and thin collagen fibers. We explored the use of two hooks to hold a piece of deep fascia in place through the course of cryo-fixation. A comparative observation with or without the hook-holding procedure would indicate the morphological adaptation to physiological stretch and contraction of the deep fascia. The present morphological approach paves the way to visualize three-dimensional ultrastructures for future biomedical studies including clinical pathophysiology.
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Three‑dimensional fine structures in deep fascia revealed by combined use of cryo‑fixed histochemistry and low‑vacuum scanning microscopy 査読あり
Hiroyuki Imazato,NobuyasuTakahashi,Yusuke Hirakawa, Yoichiro Yamaguchi,Masaru Hiyoshi,Takuya Tajima, Etsuo Chosa, Akira Sawaguchi
Scientific reports 13 ( 1 ) 6352 2023年4月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要） 出版者・発行元：Springer
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Yamako G, Punchihewa NG, Arakawa H, Tajima T, Chosa E
Sensors (Basel, Switzerland) 23 ( 7 ) 2023年3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：Sensors
Standing up from a chair is a mechanically demanding daily motion, and its biomechanics represent motor performance. In older adults with locomotive syndrome (LS), sit-to-stand (STS) movement with adequate postural control is essential to prevent falls. This study evaluated the characteristics of dynamic balance during STS movement on older adults with LS. A total of 116 participants aged ≥65 years were divided into Non-LS, LS stage 1, and LS stage 2 groups using the LS risk test. The participants were instructed to stand on the Nintendo Wii Balance Board as quickly as possible, and the STS movement was quantified using the vertical ground reaction force (VGRF) and center of pressure (CoP). The STS score, which represented dynamic balance, was significantly different among the groups (p < 0.001). The rate of VGRF development was significantly lower in the LS stages 1 and 2 than in the Non-LS group (p < 0.001). On the other hand, the total distance of the CoP path did not differ among the groups (p = 0.211). These findings indicated a reduction of postural control in older adults with LS. The STS score emphasized the importance of balance training to prevent falls in older adults with LS.
DOI： 10.3390/s23073368
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Risk factors of failure results after double-bundle reconstruction with autogenous hamstring grafts for isolated posterior cruciate ligament rupture cases 査読あり
Yudai Morita,Takuya Tajima,Nami Yamaguchi,Takuji Yokoe,Makoto Nagasawa,Tomomi Ota,Kouki Ouchi,Etsuo Chosa
Scientific reports 6192 2023年3月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要）
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Risk factors of failure results after double-bundle reconstruction with autogenous hamstring grafts for isolated posterior cruciate ligament rupture cases 査読あり
Yudai Morita,Takuya Tajima,Nami Yamaguchi,Takuji Yokoe,Makoto Nagasawa,Tomomi Ota,Kouki Ouchi,Etsuo Chosa
Scientific reports 6192 2023年3月
記述言語：英語 掲載種別：研究論文（大学，研究機関等紀要） 出版者・発行元：nature portfolio
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Yokoe T, Ouchi K, Matsumoto T, Tajima T, Chosa E
The Knee 42 57 - 63 2023年3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：Knee
Background: Partial meniscectomy is commonly performed for symptomatic patients with discoid lateral meniscus (DLM) if conservative treatment fails. However, the development of knee osteoarthritis and osteochondral lesion are detrimental postoperative complications. This study aimed to evaluate the effect of the volume of resected DLM on the contact stress of the tibiofemoral joint using a finite element analysis. Methods: Subject-specific finite-element models of the knee joint of a patient with DLM were developed from computed tomographic and magnetic resonance images. To evaluate the effect of partial meniscectomy on the contact stress in the lateral tibiofemoral joint, six knee models were created in the study (the native DLM, and five partially meniscectomized DLMs (according to the preserved width of the meniscus: 12 mm, 10 mm, 8 mm, 6 mm, and 4 mm)). Results: As the volume of resected DLM increased, higher contact stress was applied to the lateral tibiofemoral joint. Greater contact stress was applied to the preserved lateral meniscus than to the native DLM. Conclusions: From a biomechanical viewpoint, the native DLM was the most protective against lateral tibiofemoral contact stress in comparison to partially meniscectomized DLMs.
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Effect of the volume of resected discoid lateral meniscus on the contact stress of the tibiofemoral joint: A finite element analysis 査読あり
Takuji Yokoe, Koki Ouchi, Taisei Matsumoto, Takuya Tajima, Etsuo Chosa
The Knee 57 - 63 2023年3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：Elsevier
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Insertion sites of the muscles attached to the clavicle: a cadaveric study of the clavicle.
Imazato H, Takahashi N, Sawaguchi A, Hirakawa Y, Yamaguchi Y, Hiyoshi M, Tajima T, Chosa E
BMC musculoskeletal disorders 24 ( 1 ) 160 2023年3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
Background: Clavicle fractures are common injuries, especially in young, active individuals. Operative treatment is recommended for completely displaced clavicle shaft fractures, and plate fixation is stronger than the use of intramedullary nails. Few studies have reported on iatrogenic injuries to the muscle attached to the clavicle during fracture surgery. The aim of this study was to clarify the area of the insertion sites of muscles attached to the clavicle in Japanese cadavers using gross anatomy and three-dimensional (3D) analysis. We also aimed to compare the effects of anterior plate templating and superior plate templating on clavicle shaft fractures using 3D images. Methods: Thirty-eight clavicles from Japanese cadavers were analyzed. We removed all clavicles to identify the insertion sites and measured the size of the insertion area of each muscle. Three-dimensional templating was performed on both the superior and anterior plates of the clavicle using data obtained from computed tomography. The areas covered by these plates on the muscles attached to the clavicle were compared. Histological examination was performed on four randomly selected specimens. Results: The sternocleidomastoid muscle was attached proximally and superiorly; the trapezius muscle was attached posteriorly and partly superiorly; and the pectoralis major muscle and deltoid muscles were attached anteriorly and partially superiorly. The non-attachment area was located mainly in the posterosuperior part of the clavicle. It was difficult to distinguish the borders of the periosteum and pectoralis major muscles. The anterior plate covered a significantly broader area (mean 6.94 ± 1.36 cm2) of the muscles attached to the clavicle than did the superior plate (mean 4.11 ± 1.52 cm2) (p < 0.0001). On microscopy, these muscles were inserted directly into the periosteum. Conclusion: Most of the pectoralis major and deltoid muscles were attached anteriorly. The non-attachment area was located mainly from the superior to posterior part of the clavicle midshaft. Both macroscopically and microscopically, the boundaries between the periosteum and these muscles were difficult to demarcate. The anterior plate covered a significantly broader area of the muscles attached to the clavicle than that by the superior plate.
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Insertion sites of the muscles attached to the clavicle: a cadaveric study of the clavicle 査読あり
Hiroyuki Imazato, Nobuyasu Takahashi, Akira Sawaguchi, Yusuke Hirakawa, Yoichiro Yamaguchi, Masaru Hiyoshi, Takuya Tajima & Etsuo Chosa
BMC Musculoskeletal Disorders 2023年3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
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Yokoe T, Tajima T, Yamaguchi N, Morita Y, Chosa E
Medicina (Kaunas, Lithuania) 59 ( 3 ) 2023年2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：Medicina (Lithuania)
Muscle herniation of the lower extremity, such as tibialis anterior muscle herniation (TAMH), is not a rare cause of leg pain in athletes. However, a few studies have reported surgical treatment for TAMH, and the optimal surgical procedure remains controversial. Fasciotomy was reported to be effective for patients with TAMH. However, this procedure would be associated with a risk of intraoperative injury to the superficial peroneal nerve (SPN), although no previous literature has reported this complication. This case report aimed to report a case of bilateral TAMHs in which a traumatic neuroma of the SPN developed after fasciotomy. A 16-year-old baseball player presented with painful swelling lesions of the bilateral lower extremities (1 lesion on the right, 3 lesions on the left) after sports activities. An ultrasonographic evaluation showed swelling lesions of the anterolateral parts of the bilateral lower extremities in the standing position after dashing, while these lesions were not detected in the supine position. A fasciotomy of the crural fascia was performed after conservative treatment failed. Several days after surgery, the patient presented with weakened touch sensation over the dorsal area of the left foot. At the three-month follow-up examination, a swelling lesion with hard elasticity was identified. The palpation of this lesion caused a radiating sensation in the area supplied by the SPN. He was able to return to playing baseball six months after surgery. The patient was asymptomatic without palpation of the traumatic neuroma of the SPN at the latest follow-up examination. In conclusion, the present case report suggests that orthopedic surgeons need to consider the risk of iatrogenic injury to the SPN during fasciotomy for the treatment of TAMHs. However, there may be a risk of injuring the SPN because of the many variants of the course of the SPN within the compartment of the lower extremities.
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A Traumatic Neuroma Formation Following Fasciotomy for the Treatment of Tibialis Anterior Muscle Herniation:A Case Report 査読あり
Takuji Yokoe,Takuya Tajima,Nami Yamaguchi,Yudai Morita and Etsuo Chosa
medicina 2023年2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：MDPI
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Influence of the Tibial Tunnel Angle and Posterior Tibial Slope on "Killer Turn" during Posterior Cruciate Ligament Reconstruction: A Three-Dimensional Finite Element Analysis.
Yang F, Yokoe T, Ouchi K, Tajima T, Chosa E
Journal of clinical medicine 12 ( 3 ) 2023年1月
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Influence of the Tibial Tunnel Angle and Posterior Tibial Slope on "Killer Turn" during Posterior Cruciate Ligament Reconstruction: A Three-Dimensional Finite Element Analysis 査読あり
Fan Yang, Takuji Yokoe, Koki Ouchi, Takuya Tajima, Etsuo Chosa
Journal of Clinical Medicine 12 ( 3 ) 805 2023年1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：MDPI
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Okura T., Sekimoto T., Matsuoka T., Fukuda H., Hamada H., Tajima T., Chosa E.
Hand 18 ( 1_suppl ) 133S - 138S 2023年1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：Hand
Background: The purpose of the present study was to evaluate the usefulness of the median nerve stenosis rate (MNSR) measured on sagittal sonographic images of the median nerve in the diagnosis of carpal tunnel syndrome (CTS). Methods: The study population consisted of 45 hands from 37 patients with idiopathic CTS (CTS group), and 60 hands from 35 asymptomatic healthy subjects (control group). Carpal tunnel syndrome was diagnosed by clinical findings and positive electrophysiological study results. All patients and control subjects underwent ultrasonographic examination. At the carpal tunnel level, the transducer was placed longitudinally to the median nerve, and an image of the longitudinal median nerve was obtained. The minimum median nerve diameter (MND) was measured at the middle part of the capitate level, while the maximum MND was measured at the distal radioulnar joint level. The MNSR was calculated as (1 – minimum MND/maximum MND) × 100 (%). The cross-sectional area of the median nerve was also measured at the level of the pisiform. Results: On longitudinal sonographic images, the MNSR was significantly larger in the CTS group than the control group. When the cut-off value of the MNSR was 26.73%, the sensitivity and specificity were 91.1% and 80%, respectively. The area under the receiver operating characteristic curve was larger for the MNSR than for the cross-sectional area. Conclusion: The results suggest that the MNSR proposed in the present study may be useful as an auxiliary method for CTS diagnosis on ultrasonographic examination.