http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Tomoyuki Ozawa (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
-
Modified Open-Door Laminoplasty Using a Ceramic Spacer and Suture Fixation for Cervical Myelopathy
Tomoyuki Ozawa,Tomoaki Toyone,Ryutaro Shiboi,Kunimasa Inada,Yasuhiro Oikawa,Kazuhisa Takahashi,Seiji Ohtori,Gen Inoue,Masayuki Miyagi,Tetsuhiro Ishikawa,Toshiyuki Shirahata,Yoshifumi Kudo,Katsunori In 연세대학교의과대학 2015 Yonsei medical journal Vol.56 No.6
Purpose: To introduce a new simple technique using suture anchors and ceramic spacers to stabilize the elevated laminae in open-door cervical laminoplasty. Although ceramic spacers were placed in the opened laminae and fixed with nylon threads in this series, it was occasionally difficult to fix the nylon threads to the lateral mass. Materials and Methods: Study 1: A preliminary study was conducted using a suture anchor system. Sixteen consecutive patients who underwent surgery for cervical myelopathy were prospectively examined. Study 2: The second study was performed prospectivelyto evaluate the feasibility of this new technique based on the result of the preliminary study. Clinical outcomes were examined in 45 consecutive patients [cervical spondylotic myelopathy (CSM)] and 43 consecutive patients (OPLL). The Japanese Orthopedic Association scoring system (JOA score), axial neck pain, and radiological findings were analyzed. Results: 1) In one case, re-operation was necessary due to dislodgement of the ceramic spacer following rupture of the thread. 2) In all patients, postoperative CT scans showed that the anchors were securely inserted into the bone. In the CSM group, the average JOA score improved from 9.5 points preoperatively to 13.3 at follow-up (recovery 51%). In the OPLL group, the average JOA score improvedfrom 10.1 (5–14) points preoperatively to 14.4 (11–16) at follow-up (recovery 62%). There were no serious complications. Conclusion: The use of the suture anchor system made it unnecessary to create a hole in the lateral mass and enabled reliable and faster fixation of the HA spacers in open-door laminoplasty.
-
Hironobu Ueshima,Tomoyuki Ozawa,Tomoaki Toyone,Hiroshi Otake 대한척추외과학회 2017 Asian Spine Journal Vol.11 No.5
Study Design: This paper was a single center-based retrospective study with prospective data collection. Purpose: Compared with other surgeries, limited options are available for perioperative pain management in spinal surgery. Therefore, we aimed to identify new pain management in this study. Overview of Literature: The thoracolumbar interfascial plane (TLIP) block has been reported to provide effective regional analgesia in the lumbar region. This study investigated the efficacy of the TLIP block for pain management in lumbar laminoplasty. Methods: We investigated patients who underwent lumbar laminoplasty for the treatment of lumbar spinal canal stenosis from April to October 2015. Patients with secondary surgery or surgery involving more than four intervertebral spaces were excluded. The primary outcome measure was the pain scale score within 48 hours after the surgery. The secondary outcomes were the number of additional analgesic drugs used and the number of patients complaining of complications, such as nausea and vomiting, within 24 hours after the surgery. Results: We retrospectively assessed the data of 44 patients who underwent lumbar laminoplasty. Of these, 25 patients received only general anesthesia (G group), whereas 19 patients received the TLIP block along with general anesthesia (T group). Compared with the G group, the T group reported lower pain scores for pain at 1, 2, 4, and 24 hours postoperatively. Moreover, the number of patients who received the additional analgesic pentazocine was lower in the T group than in the G group. The two groups showed no significant differences in the incidence of complications. Conclusions: The TLIP block provides effective analgesia for 24 hours postoperatively in patients undergoing lumbar laminoplasty.
-
Seiji Ohtori,Masaomi Yamashita,Yasuaki Murata,Yawara Eguchi,Yasuchika Aoki,Hiromi Ataka,Jiro Hirayama,Tomoyuki Ozawa,Tatsuo Morinaga,Hajime Arai,Masaya Mimura,Hiroto Kamoda,Sumihisa Orita,Masayuki Miy 연세대학교의과대학 2014 Yonsei medical journal Vol.55 No.3
Purpose: To examine the effects of conservative and surgical treatments for nocturnalleg cramps in patients with lumbar spinal stenosis (LSS). Nocturnal leg cramps is frequently observed in patients with peripheral neuropathy. However, there have been few reports on the relationship between nocturnal leg cramps and LSS, and it remains unknown whether conservative or surgical intervention has an impact on leg cramps in patients with LSS. Materials and Methods: The subjects were 130 LSS patients with low back and leg pain. Conservative treatment such as exercise, medication, and epidural block was used in 66 patients and surgical treatmentsuch as decompression or decompression and fusion was performed in 64 patients. Pain scores and frequency of nocturnal leg cramps were evaluated based on self-reported questionnaires completed before and 3 months after treatment. Results: The severity of low back and leg pain was higher and the incidence of nocturnal leg cramps was significantly higher before treatment in the surgically treated group compared with the conservatively treated group. Pain scores improvedin both groups after the intervention. The incidence of nocturnal leg cramps was significantly improved by surgical treatment (p=0.027), but not by conservative treatment (p=0.122). Conclusion: The findings of this prospective study indicate that the prevalence of nocturnal leg cramps is associated with LSS and severity of symptoms. Pain symptoms were improved by conservative or surgicaltreatment, but only surgery improved nocturnal leg cramps in patients with LSS. Thus, these results indicate that the prevalence of nocturnal leg cramps is associatedwith spinal nerve compression by LSS.
-
Seiji Ohtori,Masaomi Yamashita,Yasuaki Murata,Yawara Eguchi,Yasuchika Aoki,Hiromi Ataka,Jiro Hirayama,Tomoyuki Ozawa,Tatsuo Morinaga,Hajime Arai,Masaya Mimura,Hiroto Kamoda,Sumihisa Orita,Masayuki Miy 연세대학교의과대학 2013 Yonsei medical journal Vol.54 No.4
Purpose: The pathological mechanism of lumbar spinal stenosis is reduced blood flow in nerve roots and degeneration of nerve roots. Exercise and prostaglandin E1 is used for patients with peripheral arterial disease to increase capillary flow around the main artery and improve symptoms; however, the ankle-brachial index (ABI), an estimation of blood flow in the main artery in the leg, does not change after treatment. Lumbar spinal nerve roots contain somatosensory, somatomotor, and unmyelinated autonomic nerves. Improved blood flow by medication with prostaglandin E1 and decompression surgery in these spinal nerve roots may improve the function of nerve fibers innervating muscle, capillary, and main vessels in the lower leg, resulting in an increased ABI. The purpose of the study was to examine whether these treatments can improve ABI. Materials and Methods: One hundred and seven patients who received conservative treatment such as exercise and medication (n=56) or surgical treatment (n=51) were included. Low back pain and leg pain scores, walking distance, and ABI were measured before treatment and after 3 months of conservative treatment alone or surgical treatment followed by conservative treatment. Results: Low back pain, leg pain, and walking distance significantly improved after both treatments (p<0.05). ABI significantly increased in each group (p<0.05). Conclusion: This is the first investigation of changes in ABI after treatment in patients with lumbar spinal stenosis. Improvement of the spinal nerve roots by medication and decompression surgery may improve the supply of blood flow to the lower leg in patients with lumbar spinal stenosis.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
