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Effect of Cryotherapy after Spine Surgery
Kenji Murata,Mitsunori Yoshimoto,Tsuneo Takebayashi,Kazunori Ida,Kazuhiko Nakano,Toshihiko Yamashita 대한척추외과학회 2014 Asian Spine Journal Vol.8 No.6
Study Design: Historical controlled trial. Purpose: To clarify the usefulness of cryotherapy after spine surgery. Overview of Literature: Cryotherapy has generally been performed subsequent to surgery on joints and in this application its clinical effects are well understood. However, cryotherapy has yet to be used following spine surgery. Its clinical efficacy in this context is unknown. Methods: Thirty six patients had undergone one level microendoscopic surgery. Sixteen were enrolled into the cooling group, with the remaining 20 making up the no postoperative cryotherapy control group. Cryotherapy was performed at 5℃ using an icing system. A silicone balloon catheter with a thermo sensor on the tip was placed in the surgical wound. The temperature in the wound was recorded every 30 minutes until the next morning. The relationship between the depth of the sensor and the temperature in the wound were investigated using simple linear regression analysis. Laboratory data, visual analogue scale (VAS) for wound pain and postoperative bleeding were investigated. Results: The mean temperature in the surgical wound was 37.0 in the control group and 35.0℃ in the cooling group (p <0.001). There was a positive correlation between the depth of the thermo sensor and the temperature in the wound in the cooling group (y=0.91x+30.2, r =0.67, p =0.004). There were no significant differences between the groups in terms of laboratory data, VAS or postoperative bleeding. Conclusions: The temperature in the wound was decreased significantly by spinal surgery cryotherapy.
Yuji Matsuoka,Kenji Endo,Hidekazu Suzuki,Yasunobu Sawaji,Hirosuke Nishimura,Taichiro Takamatsu,Osamu Kojima,Kazuma Murata,Takeshi Seki,Shinji Horie,Takamitsu Konishi,Kengo Yamamoto 대한척추외과학회 2018 Asian Spine Journal Vol.12 No.4
Study Design: Retrospective study. Purpose: To investigate the relationship between preoperative total spinal sagittal alignment and the early onset of adjacent segment degeneration (ASD) after single-level posterior lumbar interbody fusion (PLIF) in patients with normal sagittal spinal alignment. Overview of Literature: Postoperative early-onset ASD is one of the complications after L4–L5 PLIF, a common surgical procedure for lumbar degenerative disease in patents without severe sagittal imbalance. A better understanding of the preoperative characteristics of total spinal sagittal alignment associated with early-onset ASD could help prevent the condition. Methods: The study included 70 consecutive patients diagnosed with lumbar degenerative disease who underwent single-level L4–L5 PLIF between 2011 and 2015. They were divided into two groups based on the radiographic progression of L3–L4 degeneration after 1-year follow-up: the ASD and the non-ASD (NASD) group. The following radiographic parameters were preoperatively and postoperatively measured: sagittal vertebral axis (SVA), thoracic kyphosis (TK), lumbar lordosis, pelvic tilt, and pelvic incidence (PI). Results: Eight of the 70 patients (11%) experienced ASD after PLIF (three males and five females; age, 64.4±7.7 years). The NASD group comprised 20 males and 42 females (age, 67.7±9.3 years). Six patients of the ASD group showed decreased L3–L4 disc height, one had L3–L4 local kyphosis, and one showed both changes. Preoperative SVA, PI, and TK were significantly smaller in the ASD group than in the NASD group (p<0.05). Conclusions: A preoperative small SVA and TK with small PI were the characteristic alignments for the risk of early-onset ASD in patients without preoperative severe sagittal spinal imbalance undergoing L4–L5 single-level PLIF.
Visualization of Underwater Sympathetic Detonation of High Explosives
Itoh, Shigeru,Hamada, Toru,Murata, Kenji,Kato, Yukio The Korean Society of Mechanical Engineers 2001 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.15 No.12
The experiment for the sympathetic detonation (Sudo et al., 1951) (Fukuyama et al., 1958) in water was conducted. Composition B (RDX: 64%, TNT: 36%, Detonation velocity: 7900m/s) was used for both donor (the thickness was 50mm, and the diameter was 31mm) and receptor charges. The distance between the donor and the receptor, and the thickness (5, 7.5, 10mm) of the receptor were varied in the experiments. In order to investigate the basic characteristics of the underwater sympathetic detonation of high explosive, the sympathetic detonation phenomena were visualized by a high-speed camera (HADLAND PHOTONICS, IMACON790) in forms of streak and framing photographs. The 200ns/mm streak velocity was 2㎲. Manganin gauges (KYOWA Electronic INSTRUMENTS CO. SKF-21725) were used for the pressure measurements. The gauges were set under the receptor. The pressures during the complete and incomplete explosions were measured.
사료내 단백원의 차이가 참돔(Pagrus major)과 교잡어 (P. major ♀×Acanthopagrus schlegeli ♂)의 성장과 에너지수지에 미치는 영향
김양수,Biswajit Kumar Biswas,Amal Biswas,지승철,정관식,Osamu Murata,Yoshifumi Sawada,Kenji Takii 전남대학교 수산과학연구소 2013 수산과학연구소논문집 Vol.21 No.-
This study investigated the growth and energy partition of juvenile red sea bream Pagrus major (159.3±9.5 g; RSB) and hybrid sea bream P. major (♀)×Acanthopagrus schlegeli (♂) (144.8± 10.0 g; F1) on satiation feeding of fish meal (FM) and soybean meal (SM) based isocaloric diets (21.1 kJ/g diet) at 21.6℃ water temperature for 4 weeks. Two sea bream species offered no significant influence on final mean body weight, condition factor, viscera somatic index and apparent digestibility coefficient in both dietary groups, and both fish species were increased the relative stomach and intestine weight in SM than that in FM. RSB fed FM diet showed larger growth rate, feed efficiency, protein efficiency ratio, and apparent nutrients and energy retention efficiency than that fed SM diet, but this was inverse in F1. Whereas, Energy partitions of RSB and F1 in FM and SM dietary groups observed a similar tendency on fecal, digestible, urinary, metabolizable and standard metabolizable energy. However, retained energy of RSB in fed FM diet higher than that in SM, was inverse in F1. Moreover, heat increment plus voluntary activity energy consumption of F1 fed SM diet compare with fed FM diet lower than that of RSB. These results suggest that RSB and F1 has similar the energy consumption metabolism for digestive absorption in both diets, however, the energy accumulation pattern from absorbed nutrients appear to differ on SM fed.
교잡어, 참돔 (Pagrus major, ♀) × 감성돔 (Acanthopagrus schregeli, ♂)의 성장 및 수온변화와 저염분 환경에서의 내성
김양수,지승철,Biswajit Kumar Biswas,Amal Biswas,정관식,Osamu Murata,Kenji Takii 한국수산과학회 2011 한국수산과학회지 Vol.44 No.3
The growth and tolerance for water temperature and salinity were compared among red sea bream Pagrus major (RSB) black sea bream Acanthopagrus schregeli (BSB) and their hybrid (F_1), female RSB × male BSB. The growth of the F_1 fish did not differ until 27 days after hatching (dAH), after which the most rapid growth was observed until approximately 300 dAH, followed by RSB and BSB. However, the RSB had out grown the F1 fish by approximately 303 dAH. By 480 dAH, the RSB were largest, followed by the F1 and BSB groups. The tolerances for high and low water temperature were significantly different for each species and growth stage. The largest tolerance spectrum was observed in the BSB group, and the tolerance spectrums gradually decreased with increasing final body weight. During the salinity tolerance trials, all of the species started to die following transfer into freshwater (0 psu). BSB showed the highest survival rate when kept in fresh water for an average of 29.9 hours, while the F1 fish were more tolerant than the RSB fish. The fish were increasingly tolerant to fresh water and changes in water temperature as they grew, while the size of the temperature spectrum remained unchanged but shifted to a lower temperature range with growth. Our results demonstrate that F1 performed well in terms of growth compared to parental fish, with higher temperature and salinity tolerances than RSB, and is thus suggested to be a suitable aquaculture species for Korea and northeast China.
김양수,지승철,Amal Biswas,Biswajit Kumar Biswas,Annita Seok Kian Yong,Osamu Takaoka,정관식,Osamu Murata,Kenji Takii 한국수산과학회 2014 Fisheries and Aquatic Sciences Vol.17 No.1
To determine a suitable dietary protein/lipid (CP/CL) ratio in the early juvenile stages of hybrid porgy (F1), female red sea bream (RSB) × male black sea bream, five diets with various CP/CL ratios—60/7, 55/12, 51/17, 46/23, and 41/28—were prepared and provided to juveniles in triplicate. At the smaller juvenile stage, F1, weighing 0.32 g, a significantly higher specific growth rate (SGR) and feed efficiency (FE) were seen with 60/7 and 55/12 diets. However, in RSB weighing 0.26 g, SGR and FE were higher with the 60/7 diet than the other diets at 21°C. At the larger juvenile stage, F1, weighing 3.7 g, there was no significant difference in SGR or FE among the diets, but RSB weighing 4.0 g fed 60/7, 55/12, and 51/17 diets had higher SGR and FE than 46/23 and 41/28 diets at 24°C. Moreover, survival and apparent nutrient retention of F1 at both stages were significantly higher than those in RSB. These results indicate that both F1 and RSB weighing ca. 0.3 g require a higher dietary CP/CL than those weighing ca. 4 g. Additionally, F1 in both trials showed the suitability of a lower dietary CP/CL than RSB, indicating that mass production of F1 juveniles will be more economical than RSB.
Kim, Yang-Su,Ji, Seung-Cheol,Biswas, Amal,Biswas, Biswajit Kumar,Yong, Annita Seok Kian,Takaoka, Osamu,Jeong, Gwan-Sik,Murata, Osamu,Takii, Kenji The Korean Society of Fisheries and Aquatic Scienc 2014 Fisheries and Aquatic Sciences Vol.17 No.1
To determine a suitable dietary protein/lipid (CP/CL) ratio in the early juvenile stages of hybrid porgy ($F_1$), female red sea bream (RSB) ${\times}$ male black sea bream, five diets with various CP/CL ratios-60/7, 55/12, 51/17, 46/23, and 41/28-were prepared and provided to juveniles in triplicate. At the smaller juvenile stage, $F_1$, weighing 0.32 g, a significantly higher specific growth rate (SGR) and feed efficiency (FE) were seen with 60/7 and 55/12 diets. However, in RSB weighing 0.26 g, SGR and FE were higher with the 60/7 diet than the other diets at $21^{\circ}C$. At the larger juvenile stage, $F_1$, weighing 3.7 g, there was no significant difference in SGR or FE among the diets, but RSB weighing 4.0 g fed 60/7, 55/12, and 51/17 diets had higher SGR and FE than 46/23 and 41/28 diets at $24^{\circ}C$. Moreover, survival and apparent nutrient retention of $F_1$ at both stages were significantly higher than those in RSB. These results indicate that both $F_1$ and RSB weighing ca. 0.3 g require a higher dietary CP/CL than those weighing ca. 4 g. Additionally, $F_1$ in both trials showed the suitability of a lower dietary CP/CL than RSB, indicating that mass production of $F_1$ juveniles will be more economical than RSB.