著者

Naoto Suzue Tetsuya Matsuura Toshiyuki Iwame Kosaku Higashino Toshinori Sakai Daisuke Hamada Tomohiro Goto Yoichiro Takata Toshihiko Nishisho Yuichiro Goda Takahiko Tsutsui Ichiro Tonogai Ryo Miyagi Mitsunobu Abe Masatoshi Morimoto Kazuaki Mineta Tetsuya Kimura Akihiro Nitta Tadahiro Higuchi Shingo Hama Subash C. Jha Rui Takahashi Shoji Fukuta Koichi Sairyo

出版者

徳島大学医学部

雑誌

The Journal of Medical Investigation (ISSN:13431420)

巻号頁・発行日

vol.62, no.3.4, pp.109-113, 2015 (Released:2015-09-18)

参考文献数

39

被引用文献数

2 14

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Athletes sometimes experience overuse injuries. To diagnose these injuries, ultrasonography is often more useful than plain radiography, computed tomography (CT), or magnetic resonance imaging (MRI). Ultrasonography can show both bone and soft tissue from various angles as needed, providing great detail in many cases. In conditions such as osteochondrosis or enthesopathies such as Osgood-Schlatter disease, Sinding-Larsen-Johansson disease, bipartite patella, osteochondritis dissecans of the knee, painful accessory navicular,and jumper's knee, ultrasonography can reveal certain types of bony irregularities or neovascularization of the surrounding tissue. In patients of enthesopathy, ultrasonography can show the degenerative changes at the insertion of the tendon. Given its usefulness in treatment, ultrasonography is expected to become essential in the management of overuse injuries affecting the lower limb in athletes. J. Med. Invest. 62: 109-113, August, 2015

著者

Kiyotaka Hasebe Yu Okubo Koji Kaneoka Kohei Takada Daisuke Suzuki Koichi Sairyo

出版者

徳島大学医学部

雑誌

The Journal of Medical Investigation (ISSN:13431420)

巻号頁・発行日

vol.63, no.1.2, pp.85-90, 2016 (Released:2016-04-01)

参考文献数

26

被引用文献数

20

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Objectives: To ascertain the dynamic stretch effects of flexibility of the hamstrings on lumbar spine and pelvic kinematics. Background: Tight hamstrings are positively correlated with low back pain. However, it is unclear how flexibility of the hamstrings affects spino-pelvic rhythm. Methods: Twelve healthy men participated in the study. The straight leg raising (SLR) angle, finger floor distance (FFD), and spino-pelvic rhythm was measured before and after the 6-week stretching protocol. The forward bending task was divided into 4 phases. The paired t-test was used to determine significant differences before and after the FFD, SLR angle, lumbar motion, and pelvic motion, and spino-pelvic rhythm in each phase (p<0.05). Results: After 6 weeks of stretching, significant improvements were seen in the FFD with maximum forward bending and in the SLR angle. Total pelvic rotation was also significantly increased in contrast to total lumbar flexion. A decreased spino-pelvic ratio was seen in the final phase. Conclusion: Dynamic stretching could change the spino-pelvic rhythm to a pelvis-dominant motion, indicating that flexible hamstrings are important for preventing low back pain. J. Med. Invest. 63: 85-90, February, 2016

著者

Toshiyuki Iwame Tetsuya Matsuura Naoto Suzue Shinji Kashiwaguchi Takenobu Iwase Shoji Fukuta Daisuke Hamada Tomohiro Goto Takahiko Tsutsui Keizo Wada Hiroshi Egawa Akihiro Nagamachi Koichi Sairyo

出版者

徳島大学医学部

雑誌

The Journal of Medical Investigation (ISSN:13431420)

巻号頁・発行日

vol.63, no.3.4, pp.171-174, 2016 (Released:2016-09-17)

参考文献数

11

被引用文献数

10

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Purpose: Our aim was to examine the outcome of an elbow check-up system for youth baseball players. In particular, we investigated the nature of elbow injuries in youth baseball players with elbow pain and ultrasonographic findings of the capitellum. Materials and Methods: A total of 1605 players participating in the regional summer championship in July 2013 underwent a questionnaire survey, physical examination, ultrasound imaging, and radiographic examination. Results: A total of 499 (31.1%) players reported episodes of elbow pain, of whom 320 (64.1%) had abnormal findings on physical examination, and 115 (35.9%) agreed to undergo radiography. Among them, 98 (85.2%) exhibited radiographic abnormalities. On the initial ultrasonography screening, 60 (3.7%) players had an abnormal finding and 55 (91.7%) agreed to undergo radiography. Among them, 26 (47.3%) were found to have osteochondritis dissecans (OCD) of the capitellum on radiographs. Conclusions: About 30% of youth baseball players had episodes of elbow pain, and 64.1% of players with elbow pain had abnormal findings on physical examination. Furthermore, 85.2% of subjects who underwent radiographic examination exhibited radiographic abnormalities. About 4% of young baseball players had an abnormal finding on initial ultrasonography screening, and nearly 50% of them had OCD of the capitellum on radiographs. J. Med. Invest. 63: 171-174, August, 2016

著者

Michiko Sato Teruhiro Morishita Takafumi Katayama Shigeko Satomura Hiroko Okuno Nami Sumida Masae Sakuma Hidekazu Arai Shinsuke Katoh Koichi Sairyo Akihiko Kawaura Eiji Takeda

出版者

The University of Tokushima Faculty of Medicine

雑誌

The Journal of Medical Investigation (ISSN:13431420)

巻号頁・発行日

vol.67, no.1.2, pp.151-157, 2020 (Released:2020-05-02)

参考文献数

53

被引用文献数

8

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A clearer understanding of skeletal muscle mass (SMM) in middle-aged and elderly individuals is important for maintaining functionality. In the present study, age-related changes in SMM, the threshold of SMM with walking difficulty, intestinal nutrient absorption rate, and various serum factors were examined in Japanese populations of different ages. We used 24-h creatinine excretion as a measure of total body SMM. Age-related decreases in SMM, intestinal nutrient absorption rates, and serum 25-hydroxyvitamin D [25(OH)D] concentrations were significantly higher in women than in men. The cut-off values for SMM (kg), its percentage of total body weight (BW), the SMM index [SMMI] (Kg / m2), and creatinine height index (CHI) (%) in elderly individuals with walking difficulty were approximately 8-10 kg, 17-20% of BW, 3.9-4.6 kg / m2, and 44%, respectively. Serum 25(OH)D concentrations were closely associated with SMM (kg, % of BW, kg / m2) and CHI (%) as well as the intestinal absorption rates of nitrogen (%) and phosphorus (%) in women, but not in men. The present results demonstrate that vitamin D is an important metabolic factor in skeletal muscle, and contributes to the optimal management of skeletal muscle and the prevention of sarcopenia. J. Med. Invest. 67 : 151-157, February, 2020

著者

Tsuyoshi Goto Toshinori Sakai Kosuke Sugiura Hiroaki Manabe Masatoshi Morimoto Fumitake Tezuka Kazuta Yamashita Yoichiro Takata Takashi Chikawa Shinsuke Katoh Koichi Sairyo

出版者

The Japanese Society for Spine Surgery and Related Research

雑誌

Spine Surgery and Related Research (ISSN:2432261X)

巻号頁・発行日

pp.2018-0020, (Released:2018-08-25)

被引用文献数

4

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Purpose: In past biomechanical studies, repetitive motion of lumbar extension, rotation, or a combination of both, frequently seen in batting or pitching practice in baseball, shooting practice in soccer, and spiking practice in volleyball, have been considered important risk factors of lumbar spondylolysis. However, clinically, these have been identified in many athletes performing on a running track or on the field, which requires none of the practices described above. The purpose of this study was to verify how much impact running has on the pathologic mechanism of lumbar spondylolysis.Methods: In study 1, 89 consecutive pediatric patients diagnosed with lumbar spondylolysis at a single outpatient clinic between January 2012 and February 2017 were retrospectively analyzed. In study 2, motion analysis was performed on 17 male volunteers who had played on a soccer team without experiencing low back pain or any type of musculoskeletal injury. A Vicon motion capture system was used to evaluate four movements: maximal effort sprint (Dash), comfortable running (Jog), instep kick (Shoot), and inside kick (Pass).Results: In study 1, 13 of the 89 patients with lumbar spondylolysis were track and field athletes. In study 2, motion analysis revealed that the hip extension angle, spine rotation angle, and hip flexion moment were similar in Dash and Shoot during the maximum hip extension phase. The pelvic rotation angle was significantly greater in the kicking conditions than in the running conditions.Conclusions: Kinematically and kinetically, the spinopelvic angles in Dash were considered similar to those in Shoot. Dash could cause mechanical stress at the pars interarticularis of the lumbar spine, similar to that caused by Shoot, thus leading to spondylolysis.

著者

Koichi Iwaki Toshinori Sakai Daisuke Hatayama Yohei Hayashi Nanae Inoue Miyuki Matsumoto Yusuke Hattori Tsuyoshi Goto Koichi Sairyo Shuichiro Tsuji

出版者

The University of Tokushima Faculty of Medicine

雑誌

The Journal of Medical Investigation (ISSN:13431420)

巻号頁・発行日

vol.65, no.3.4, pp.177-183, 2018 (Released:2018-10-04)

参考文献数

17

被引用文献数

1 10

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The purpose of this study was to evaluate the physical features of pediatric patients with lumbar spondylolysis (LS), factors that increase the load during compensatory movements at the lumbar spine, and the outcomes of rehabilitation. Twenty patients were included. Fifteen items were used:fingertip‐to‐floor distance (FFD), straight leg raising (SLR), heel‐to‐buttock distance (HBD), tightness of the rectus femoris, the lateral and medial rotator muscles, iliopsoas, tensor fascia lata, adductor muscles, soleus muscle, and latissimus dorsi, and trunk rotation, sit‐ups and endurance of the abdominal and back muscles. Initial findings were judged as positive or negative using previously reported cut‐off values and were re‐evaluated 2 or 3 months later. Positive tests were found for HBD and tightness of the rectus femoris in 85% of the patients, for endurance of the abdominal muscles in 75%, SLR and sit‐ups in 70%, and FFD and tightness of the external rotator muscles in 60%. The physical features varied according to the type of sport played, and some patients were refractory to rehabilitation. Only 17.6%, 33.3%, and 40.0% of patients with initially positive findings for HBD, tightness of the external rotator muscles, and endurance of the abdominal muscles, respectively, achieved improvements after rehabilitation. J. Med. Invest. 65:177‐183, August, 2018

著者

Masatoshi MORIMOTO Shunsuke TAMAKI Takayuki OGAWA Shutaro FUJIMOTO Kosuke SUGIURA Makoto TAKEUCHI Hiroaki MANABE Fumitake TEZUKA Kazuta YAMASHITA Junzo FUJITANI Koichi SAIRYO

出版者

The Japan Neurosurgical Society

雑誌

NMC Case Report Journal (ISSN:21884226)

巻号頁・発行日

vol.10, pp.87-92, 2023-12-31 (Released:2023-04-10)

参考文献数

16

被引用文献数

2

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Various approaches to lumbar interbody fusion have been described. The usefulness of full-endoscopic trans-Kambin's triangle lumbar interbody fusion has recently been reported. This technique has several advantages in patients with degenerative spondylolisthesis, including the ability to improve symptoms without decompression surgery. Moreover, given that the entire procedure is performed percutaneously, it can be performed without increasing the operation time or surgical invasiveness, even in obese patients. In this article, we discuss these advantages and illustrate them with representative cases.

著者

Ryo OKADA Toshinori SAKAI Toshihiko NISHISHO Akihiro NITTA Shigeyuki TAKAHARA Koichi OBA Koichi SAIRYO

出版者

The Japan Neurosurgical Society

雑誌

NMC Case Report Journal (ISSN:21884226)

巻号頁・発行日

vol.9, pp.249-253, 2022-12-31 (Released:2022-08-20)

参考文献数

16

被引用文献数

1

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Transforaminal full-endoscopic spine surgery (TF-FESS) is a novel minimally invasive spine surgery that requires only an 8-mm skin incision and causes minimal damage to the paravertebral muscles. To perform TF-FESS safely and efficiently, preoperative planning is quite important as the intervention requires anatomical understanding and high technical skills. Recently, three-dimensional (3D) printing has become a useful tool in various surgeries, and several studies have addressed its efficacy; however, there are no reports on the application of 3D printing to FESS. In this study, we present two cases of severe lumbar deformities for which preoperative 3D printing was useful. The 3D printing enabled the surgeons to visualize and plan the drilling of the superior articular process for a successful foraminoplasty at a low cost. The manufacturing equipment cost about USD 900 and is able to produce an actual-size model at a cost of less than USD 10 per patient. In conclusion, preoperative planning using 3D printing should be adopted to safely perform FESS.

著者

Koichi Sairyo Kosaku Higashino Kazuta Yamashita Fumio Hayashi Keizo Wada Toshinori Sakai Yoichiro Takata Fumitake Tezuka Masatoshi Morimoto Tomoya Terai Takashi Chikawa Hiroshi Yonezu Akihiro Nagamachi Yoshihiro Fukui

出版者

徳島大学医学部

雑誌

The Journal of Medical Investigation (ISSN:13431420)

巻号頁・発行日

vol.64, no.1.2, pp.1-6, 2017 (Released:2017-03-29)

参考文献数

32

被引用文献数

30

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Percutaneous endoscopic surgery for the lumbar spine, which was established in the last decade, requires only an 8-mm skin incision and causes minimal damage to the paravertebral muscles; thus, it is considered to be a minimally invasive technique for spinal surgery. It has been used to perform percutaneous endoscopic discectomy via two main approaches: the TF approach is a posterolateral one through the intervertebral foramen and can be done under local anesthesia; the IL approach is a more traditional one through the interlaminar space and is difficult to perform under local anesthesia. Recently, these techniques have been applied for lumbar spinal stenosis (LSS), the TF method for foraminal stenosis under local anesthesia, and the IL method for central and lateral recess stenosis under general anesthesia. In this study, using a fresh human cadaver model, we performed simultaneous decompression of the lateral recess and foraminal stenosis at L4-5 using the TF approach. Computed tomography confirmed enlargement of the lateral recess and intervertebral foramen. This technique, which can be performed under local anesthesia, should benefit elderly patients with LSS and poor general condition due to multiple comorbidities. Finally, we introduce the concept of percutaneous transforaminal ventral facetectomy using a spinal percutaneous endoscope. J. Med. Invest. 64: 1-6, February, 2017