Papers - CHOSA Etsuo
-
Effect of the volume of resected discoid lateral meniscus on the contact stress of the tibiofemoral joint: A finite element analysis Reviewed
Takuji Yokoe, Koki Ouchi, Taisei Matsumoto, Takuya Tajima, Etsuo Chosa
The Knee 57 - 63 2023.3
Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier
-
Risk factors associated with throwing injuries in young baseball players. Reviewed
Nagasawa M, Tajima T, Kawagoe S, Yamaguchi N, Morita Y, Yokoe T, Ota T, Izumi T, Ishida Y, Chosa E
Journal of shoulder and elbow surgery 32 ( 8 ) 1673 - 1680 2023.3
Language：English Publishing type：Research paper (scientific journal) Publisher：Journal of Shoulder and Elbow Surgery
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.
-
Insertion sites of the muscles attached to the clavicle: a cadaveric study of the clavicle Reviewed
Hiroyuki Imazato, Nobuyasu Takahashi, Akira Sawaguchi, Yusuke Hirakawa, Yoichiro Yamaguchi, Masaru Hiyoshi, Takuya Tajima & Etsuo Chosa
BMC Musculoskeletal Disorders 2023.3
Language：English Publishing type：Research paper (scientific journal) Publisher：BMC
-
Takuji Yokoe,Takuya Tajima,Nami Yamaguchi,Yudai Morita and Etsuo Chosa
medicina 59 ( 3 ) 2023.2
Language：English Publishing type：Research paper (scientific journal) Publisher：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.
-
第6回日本リハビリテーション医学会秋季学術集会【印象記】／第6回日本リハビリテーション医学会秋季学術集会【報告記】
帖佐 悦男, 千田 益生
The Japanese Journal of Rehabilitation Medicine 60 ( 2 ) 167 - 168 2023.2
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：公益社団法人 日本リハビリテーション医学会
DOI： 10.2490/jjrmc.60.167
-
Influence of the Tibial Tunnel Angle and Posterior Tibial Slope on "Killer Turn" during Posterior Cruciate Ligament Reconstruction: A Three-Dimensional Finite Element Analysis. Reviewed
Yang F, Yokoe T, Ouchi K, Tajima T, Chosa E
Journal of clinical medicine 12 ( 3 ) 2023.1
Language：English Publishing type：Research paper (scientific journal)
DOI： 10.3390/jcm12030805
-
Influence of the Tibial Tunnel Angle and Posterior Tibial Slope on "Killer Turn" during Posterior Cruciate Ligament Reconstruction: A Three-Dimensional Finite Element Analysis Reviewed
Fan Yang,Takuji Yokoe,Koki Ouchi,Takuya Tajima and Etsuo Chosa
Journal of Clinical Medicine 805 2023.1
Publishing type：Research paper (scientific journal) Publisher：Journal of Clinical Medicine
DOI： 10.3390/jcm12030805
-
Influence of the Tibial Tunnel Angle and Posterior Tibial Slope on "Killer Turn" during Posterior Cruciate Ligament Reconstruction: A Three-Dimensional Finite Element Influence of the Tibial Tunnel Angle and Posterior Tibial Slope on "Killer Turn" during Posterior Cruciate Ligament Reconstruction: A Three-Dimensional Finite Element Analysis Reviewed
Fan Yang, Takuji Yokoe, Koki Ouchi, Takuya Tajima, Etsuo Chosa
Journal of Clinical Medicine 12 ( 3 ) 805 2023.1
Language：English Publishing type：Research paper (scientific journal)
-
Leg Muscle Activity and Joint Motion during Balance Exercise Using a Newly Developed Weight-Shifting-Based Robot Control System Reviewed
Go Yamako, Kirari Ito, Takanori Muraoka, Etsuo Chosa.
Int J Environ Res Public Health. 20 ( 2 ) 915 2023.1
Language：English Publishing type：Research paper (scientific journal)
-
Kido S., Chosa E., Tanaka R.
Food Chemistry 398 133917 2023.1
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Food Chemistry
The effect of dried and UV-C-irradiated mushroom powder on lipid oxidation and vitamin D content in fish meat was investigated. To this end, Flammulina velutipes, Grifola frondosa, Hypsizygus marmoreus, Lentinula edodes, Pleurotus eryngii, Pleurotus ostreatus were dried by hot air and irradiated by UV-C and evaluated the effect of these treatments on the components. In general, the ergothioneine content did not change substantially, the total phenolic compound content decreased by hot-air drying, and the ergocalciferol content increased by UV-C irradiation. To the evaluate effect of mushroom powder on lipid oxidation and vitamin D content in fish meat, 5% of the hot air dried and UV-C-irradiated mushroom powder was added to fish meat and oxidized. Consequently, all six mushrooms prevented lipid oxidation, and ergocalciferol content in each mushroom powder remained between 58.2% and 69.7%. Overall, P. eryngii, L. edodes, and P. ostreatus strongly prevented the generation of lipid peroxide and aldehyde.
-
Yamako G., Ito K., Muraoka T., Chosa E.
International Journal of Environmental Research and Public Health 20 ( 2 ) 2023.1
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：International Journal of Environmental Research and Public Health
A novel and fun exercise robot (LOCOBOT) was developed to improve balance ability. This system can control a spherical robot on a floor by changing the center of pressure (COP) based on weight-shifting on a board. The present study evaluated leg muscle activity and joint motion during LOCOBOT exercise and compared the muscle activity with walking and sit-to-stand movement. This study included 10 healthy male adults (age: 23.0 ± 0.9 years) and examined basic LOCOBOT exercises (front–back, left–right, 8-turn, and bowling). Electromyography during each exercise recorded 13 right leg muscle activities. Muscle activity was represented as the percentage maximal voluntary isometric contraction (%MVIC). Additionally, the joint motion was simultaneously measured using an optical motion capture system. The mean %MVIC differed among LOCOBOT exercises, especially in ankle joint muscles. The ankle joint was primarily used for robot control. The mean %MVIC of the 8-turn exercise was equivalent to that of walking in the tibialis anterior, and the ankle plantar flexors were significantly higher than those in the sit-to-stand motion. Participants control the robot by ankle strategy. This robot exercise can efficiently train the ankle joint muscles, which would improve ankle joint stability.
-
Efficacy of Diagnosing Carpal Tunnel Syndrome Using the Median Nerve Stenosis Rate Measured on Ultrasonographic Sagittal Imagery: Clinical Case-Control Study. Reviewed
Toshiyuki Okura, Tomohisa Sekimoto, Tomomi Matsuoka, Hajime Fukuda, Hiroaki Hamada, Takuya Tajima, Etsuo Chosa.
Hand (NY) 18 ( 1_suppl ) 133S - 138S 2023.1
Language：English Publishing type：Research paper (scientific journal)
-
重心移動で操作するLOCOBOTを使用した理学療法が人工股関節全置換術後の立位体重負荷率改善に及ぼす効果
宮﨑 茂明, 山子 剛, 荒川 英樹, 坂本 武郎, 川口 翼, 伊東 きらり, 帖佐 悦男
運動器理学療法学 3 ( Supplement ) P-15 - P-15 2023
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：一般社団法人 日本運動器理学療法学会
-
Medical Support for Rugby Sevens in Tokyo2020+1 Olympic Games
Tajima Takuya, Chosa Etsuo, Nakamura Akihiko
Japanese Journal of Orthopaedic Sports Medicine 43 ( 3 ) 105 - 110 2023
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Orthopaedic Socety for Sports Medicine
-
Miyazaki S., Yamako G., Arakawa H., Sakamoto T., Kawaguchi T., Ito K., Chosa E.
PeerJ 11 e15397 2023
Language：English Publishing type：Research paper (scientific journal) Publisher：PeerJ
Background. After a total hip arthroplasty (THA), standing and walking balance are greatly affected in the early stages of recovery, so it is important to increase the weight-bearing amount (WBA) on the operated side. Sometimes, traditional treatments may not be enough to improve WBA and weight-bearing ratio (WBR) on the operated side in a satisfactory way. To solve this problem, we came up with a new weight-shifting-based robot control system called LOCOBOT. This system can control a spherical robot on a floor by changing the center of pressure (COP) on a force-sensing board in rehabilitation after THA. The goal of this study was to find out how rehabilitation with the LOCOBOT affects the WBR and balance in a static standing position in patients with unilateral hip osteoarthritis (OA) who had a primary uncemented THA. Methods. This randomized controlled trial included 20 patients diagnosed with Kellgren-Lawrence (K-L) grade 3 or 4 hip OA on the operative side and K-L grade 0 normal hip on the nonoperative side. We used the minimization method for allocation and randomly assigned patients to either the LOCOBOT group or the control group. As a result, 10 patient seach were randomly assigned to the LOCOBOT and control groups. Both groups received 40 min of rehabilitation treatment. Out of the 40 min, the LOCOBOT group underwent treatment for 10 min with LOCOBOT. The control group performed COP-controlled exercises on a flat floor instead of using LOCOBOT for 10 of the 40 min. All theoutcome measures were performed pre-THA and 11.9 ± 1.6 days after THA (12 days after THA). The primary outcome measure included WBR in the static standing position. Results. After12 days of THA, the LOCOBOT group exhibited significantly higher mean WBR and WBA (operated side) values than the control group. Furthermore, the LOCOBOT group exhibited significantly lower mean WBA (non-operated side) and outer diameter area (ODA) values than the control group. From pre-THA to 12 days after THA, the LOCOBOT group exhibited a significant improvement in mean WBR and WBA (operated side). Moreover, the mean WBA (non-operated side) and ODA significantly decreased. From pre-THA to 12 days after THA, the control group showed a significant increase in total trajectory length and ODA. Conclusions. The most important finding of this study was that patients were able to perform the LOCOBOT exercise as early as the second day after THA, and that WBR and ODA significantly improved by the 12th day after THA. This result demonstrated that the LOCOBOT effectively improves WBR in a short period of time after THA and is a valuable system for enhancing balance ability. This expedites the acquisition of independence in activities of daily living after THA and may contribute to optimizing the effectiveness of medical care.
DOI： 10.7717/PEERJ.15397
-
Ureter position and risk of ureteral injury during lateral lumbar interbody fusion
Hamanaka H., Tajima T., Kurogi S., Higa K., Nagai T., Kuroki T., Takamori H., Mukai S., Kamoto T., Chosa E.
Journal of Orthopaedic Science 2023
Language：English Publishing type：Research paper (scientific journal) Publisher：Journal of Orthopaedic Science
Background: Ureteral injury during lateral lumbar interbody fusion (LLIF) is uncommon. However, it is a serious complication that may require additional surgery should it occur. The objective of this study was to evaluate whether there was any change in the position of the left ureter between preoperative biphasic contrast-enhanced CT scanned in the supine position and intraoperative scanning in the right lateral decubitus position after stent placement, to assess the risk of ureteral injury in the actual surgical position. Methods: The position of the left ureter scanned with the O-arm navigation system with the patient in the right lateral decubitus position and its position on preoperative biphasic contrast-enhanced CT images scanned with the patient in the supine position were investigated comparing their positions at the L2/3, L3/4, and L4/5 levels. Results: The ureter was located along the interbody cage insertion trajectory in 25 of 44 disc levels (56.8%) in the supine position, but in only 4 (9.5%) in the lateral decubitus position. The proportion of patients in whom the left ureter was located lateral to the vertebral body (along the LLIF cage insertion trajectory) at each level was 80% in the supine position and 15.4% in the lateral decubitus position at the L2/3 level, 53.3% in the supine position and 6.7% in the lateral decubitus position at the L3/4 level, and 33.3% in the supine position and 6.7% in the lateral decubitus position at the L4/5 level. Conclusion: The proportion of patients in whom the left ureter was located on the lateral surface of the vertebral body when the patient was in the actual surgical position (lateral decubitus position) was 15.4% at the L2/3 level, 6.7% at the L3/4 level, and 6.7% at the L4/5 level, suggesting that caution is required during LLIF surgery.
-
Development of a video camera-type kayak motion capture system to measure water kayaking
Miyazaki S., Yamako G., Kimura R., Punchihewa N.G., Kawaguchi T., Arakawa H., Chosa E.
PeerJ 11 e15227 2023
Language：English Publishing type：Research paper (scientific journal) Publisher：PeerJ
Background: In kayaking, trunk motion is one of the important factors that prevent injury and improve performance. Kinematic studies in kayaking have been reported in laboratory settings using paddling simulators and ergometers. However, such studies do not reflect kayaking on water, the actual competitive environment. Therefore, we developed a video camera-type kayak motion capture system (KMCS) wherein action cameras were fixed to a kayak to capture images of markers attached to an athlete’s body. This study aimed to compare the kinematic data between KMCS and an optical motion capture system (OMCS) in kayaking and to determine the accuracy of the KMCS analysis. Methods: In a competition, five elite junior female kayak athletes performed kayak paddling under the unloaded condition using a kayak. The kayak was secured using a tri-folding bench and a towel, and twenty strokes were recorded during maximal paddling. One stroke was defined as the period from right catch to left catch, and the first six strokes were used to evaluate the accuracy. Trunk angles (tilting, turning, and rotation) were examined with the simultaneous use of KMCS and OMCS, and the differences between these systems were evaluated. To ensure reliability, intraclass correlation coefficient (ICC; a two-way mixed model for absolute agreement) was calculated for each angle. Furthermore, Bland–Altman analysis was performed to understand the agreement between the two systems. Results: Root mean square errors (RMSEs) were 1.42̊ and 3.94̊ for turning and rotation, respectively, and mean absolute errors (MAEs) were 1.08̊ and 3.00̊ for turning and rotation, respectively. The RMSE and MAE for tilting were 2.43̊ and 1.76̊, respectively, which indicated that the validity was comparable to that of other angles. However, the range of motion in tilting was lower than that in turning and rotation. Bland–Altman analysis showed good agreement in the total range of motion, with mean bias values of −0.84̊, −0.07̊, and −0.41̊ for tilting, turning, and rotation, respectively. The ICCs for tilting, turning, and rotation were 0.966, 0.985, and 0.973, respectively, and showed excellent reliability. Conclusions: The newly developed KMCS effectively measured the trunk motion with good accuracy in kayaking. In future studies, we intend to use KMCS to measure kayaking on water and collect data for performance improvement and injury prevention.
DOI： 10.7717/peerj.15227
-
Age- and sex-related differences in upper-body joint and endpoint kinematics during a drinking task in healthy adults.
Nakatake J, Arakawa H, Tajima T, Miyazaki S, Chosa E
PeerJ 11 e16571 2023
Language：English Publishing type：Research paper (scientific journal)
DOI： 10.7717/peerj.16571
-
Pivotal role of High-Mobility Group Box 2 in ovarian folliculogenesis and fertility. Reviewed
Shinichiro Shirouzu, Naohiro Sugita, Narantsog Choijookhuu, Yu Yamaguma, Kanako Takeguchi, Takumi Ishizuka, Mio Tanaka, Fidya, Kengo Kai, Etsuo Chosa, Yoshihiro Yamashita, Chihiro Koshimoto, Yoshitaka Hishikawa.
Journal of Ovarian Research 15 ( 1 ) 133 2022.12
Language：English Publishing type：Research paper (scientific journal)
-
Investigation of cryotherapy for pain relief after arthroscopic shoulder surgery Reviewed
Rinko Uchida, Amy Hombu, Yasuyuki Ishida, Makoto Nagasawa, Etsuo Chosa
Journal of Orthopaedic Surgery and Research 17 ( 1 ) 553 2022.12
Language：English Publishing type：Research paper (scientific journal)