著者

北川 守 朝長 圀夫 江川 正 中村 泰 後藤 正治 三原 茂

出版者

West-Japanese Society of Orthopedics & Traumatology

雑誌

整形外科と災害外科 (ISSN:00371033)

巻号頁・発行日

vol.38, no.2, pp.652-656, 1989-10-25 (Released:2010-02-25)

参考文献数

5

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A comparative study was conducted on the 20 knees of 10 females with normal knee joints (age, 22-35 years) and on 7 knees of 7 patients with subluxation syndrome (age, 15-24 years), using axial radiography and CT. In axial radiography where the angle of knee flexion was 30° or 60°, no significant difference was recognized between the two groups with respect to tilting angle, patellofemoral angle, congruence angle and lateral shift. However, a significant difference was found using CT. Thus, CT was considered useful for diagnosis. Because of these results, all 7 cases underwent surgery for detachment of the lateral side and tightening of the medial side. Three cases underwent shifting of the tibial tuberosity to the anteromedial side, resulting in a favourable outcome. Here, we report the study.

著者

上本 伸二 門田 守人 市田 隆文 後藤 正治 田中 紘一 土肥 雪彦

出版者

一般社団法人 日本移植学会

雑誌

移植 (ISSN:05787947)

巻号頁・発行日

vol.55, no.1, pp.1-12, 2020 (Released:2020-04-25)

著者

小松 芳成 後藤 正治 麻生 節夫

出版者

秋田大学

雑誌

秋田大学工学資源学部研究報告 (ISSN:13457241)

巻号頁・発行日

vol.24, pp.19-25, 2003-10-31

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Small-sized "Tatara-buki" furnace and "Oroshigane" furnace were made for laboratory working. Iron sand mined from Mukaihama beach in the city of Akita was applied to "Tamahagane" making based on combined use of the Tatara-buki process and the Oroshigane process. After washing in water and magnetic dressing, the iron sand was smelted by means of the "Tatara-buki" process and Kera (iron bear) with lower phosphorous and surfur contents was made in reproducibility of 20 % yield. The carbon content of the Kera was 2.43〜3.04 mass% which was significantly lower than that in blast furnace process. Next, the Kera was refined by the Oroshigane process to make Tamahagane which was a high quality iron containing 0.63mass%C, 0.04mass%Si, 0.048mass%S and 0.075mass%P. The microstructure of the Kera and the Tamahagane was well understood from the carbon contents. A series of the experiments mentioned above was conducted as an appropriate practice on an education program "Creative Techno-Craft" for the undergraduate course in the Department of Materials Science and Engineering, Akita University.