著者

大塚 真司 多田 英司 西方 篤 藤田 栄 水流 徹

出版者

一般社団法人 日本鉄鋼協会

雑誌

鉄と鋼 (ISSN:00211575)

巻号頁・発行日

vol.103, no.1, pp.27-35, 2017 (Released:2016-12-31)

参考文献数

22

被引用文献数

4 13

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In this study, hydrogen absorption behavior of steels on a vehicle during driving and parking in deicing-salt-spraying areas was investigated by using temperature-compensating hydrogen absorption monitoring system. During the driving of the vehicle in the areas, hydrogen permeation current of steel was increased due to picking up of salt water from the road when the road was wet. On the other hand, during the parking of the vehicle, the magnitude of the hydrogen permeation current were indicated that the hydrogen permeation current in the automobile driving environments is related to both driving states of a vehicle and environmental conditions such as temperature and relative humidity.

著者

村井 智 荻原 浩太郎 西 和彦 伊丹 尚多 大塚 真司 日下 昇 西浦 司

出版者

日本脊髄外科学会

雑誌

脊髄外科 (ISSN:09146024)

巻号頁・発行日

vol.31, no.3, pp.270-275, 2017 (Released:2018-01-06)

参考文献数

21

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Objective : Odontoid fractures are the most common cervical injuries among the elderly population. We evaluated treatment outcome in 14 patients with odontoid fractures who were treated at our institute between 2003 and 2016. Additionally, in this report, we discuss the optimal treatment option for odontoid fractures in the elderly population and provide a literature review.  Results : Patient age ranged 19-90 (average, 60.6) years, and the patients included five (36%) octogenarians. According to Anderson’s classification, four cases (29%) were type II and 10 cases (71%) were type III odontoid fractures. Surgical intervention was performed in 12 cases, including anterior odontoid screw fixation in nine, posterior cervical instrumented fusion in four (including reoperation after anterior screw fixation in one), and conservative treatment with halo vest fixation in two. Moreover, 13 patients received radiographic follow-up, and 11 (85%) attained bone fusion. In octogenarians, three (60%) of five cases attained bone fusion through anterior screw fixation.  Conclusion : In the elderly population, tailor-made treatment is necessary according to systemic diseases, activities of daily living, and radiographic assessment of odontoid fractures in addition to Anderson’s classification.