著者

尾崎 誠 岩崎 勝郎 手島 鍛 土井口 祐一 山田 健治 高橋 克郎 貞松 俊弘

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.42, no.2, pp.521-525, 1993-03-25 (Released:2010-02-25)

参考文献数

8

被引用文献数

1 2

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To assess the cause of hip lesions when combined with pelvic posterior inclinatiop such as osteoarthritic and rapidly destructive coxopathy-like changes, coverage of the femoral head to the acetabulum was measureed on computed torn ograms of 35 patients, and the relationship between degree of inclination and coverage was investigated. Patients were divided to in three groups according to their degree of pelvic posterior inclination: Group 1; less than 20° of inclination, 18 hips; Group 2; 21-25°, 6 hips; Group 3; more than 26°, 11 hips.There was no statistical difference in total coverage of the head among the three groups. Coverage of the anterior part of the head decreased and coverage of the posterior part of the head increased with an increase in posterior inclination.These findings suggest that the decrease in anterior coverage of the head with increasing pelvic inclination may lead fo the developmenf of some hip lesions.

著者

土井口 祐一 岩崎 勝郎 山田 健治 高端 克郎 手島 鍛 貞松 俊弘 富田 雅人 楢林 葉子

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.41, no.2, pp.641-645, 1992

被引用文献数

33 15

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This study was designed to identify the change in radiological shape of the pelvic cavity caused by sagittal pelvic inclination and to learn the correlation between inclination and progression of osteo-arthritis (OA) of the hip joint.<br>As a preliminary study, antero-posterior (AP) and lateral radiographs of 10 bleached pelves were taken simultaneously in seven different sagittal tilt angles.<br>The degree of sagittal tilt of the pelvis (A) was then compared to the longitudinal: transverse axis length (L/T) ratio of the radiological shape of the pelvic cavity in AP radiographs. This study revealed a linear relationship between the two parameters that led to the equation: A=-67.0°×L/T+55.7° in males and A=-69.0°×L/T+61.6° in females. Using this the sagittal pelvic tilt can be calculated from the radiological shape of the pelvic cavity.<br>Applying this equation to pelvic radiographs of 212 patients; 52 normal hips and 160 with OA hip of varying severity, pelvic tilt was calculated to investigate whether it relates to the aging of the patient or involves progression of OA.<br>There was a significant correlation between age and pelvic tilt angles of patients in both normal and OA hip groups; the pelvis tended to incline posteriorly with increasing age. Further studies are required to elucidate the participation of the pelvic inclination on progression of OA of the hip.

著者

原田 真一 伊藤 信之 衛藤 正雄 朝長 匡 岩崎 勝郎

出版者

西日本整形・災害外科学会

雑誌

整形外科と災害外科 (ISSN:00371033)

巻号頁・発行日

vol.45, no.4, pp.1126-1130, 1996-09-25 (Released:2010-02-25)

参考文献数

5

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We report neuropathic arthropathy of the shoulder joint caused by syringomyelia and discuss the method of diagnosis and treatment.Three patients were treated and their ages were 41, 52 and 55 years respectively. In case No 1, there was swelling and the rapid destruction of the shoulder joint. Synovectomy was performed, however the ROM decreased markedly. Six months later, a shoulder joint replacement was carried out and a temporaly improvement of ROM was noticed. However it became worse gradually again and after ten years later she can abduct her arm only 40 degrees. In case No. 2, the synovectomy was performed, but the destruction of the joint progressed rapidly and the joint was dislocated anteriorly 6 months later. At present she has poor abduction of 60 degrees. In case No. 3, osteosynthesis was carried out for the humeral shaft fracture 5 years ago, however non-union and neuropathic arthropathy of the shoulder joint were diagnosed 3 years. later. Present ab-duction angle is 30 degrees.All these three cases had characteristics of massive swelling, rapid and progressive destruction of humeral head with slight pain.So far in Japan, 36 cases out of 42 cases of neuropathic arthropathy of the shoulder joint was caused by syringomyelia. However, the results of these cases were not satisfactory, even after performing synovectomy, prosthesis or arthrodesis because almost all the syringomyelia cases are slow and progressive and leads to the destruction of the joint.

著者

伊藤 茂 平野 徹 岩崎 勝郎 上谷 雅孝 楢林 好隆

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.43, no.4, pp.1423-1425, 1994-09-25 (Released:2010-02-25)

参考文献数

8

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We studied the MRI finding of pigmented villonodular synovitis (PVS) in the knee joints of two patients. Diffuse nodular lesions of PVS were typically shown as a low intensity area, on both T1 and T2 weingted MRI. High intensity areas on T2 were intermingled within the lesions.MRI revealed not only the lesions in the joint space but also osseous lesions in the medial, lateral and posterior condyles of the femur and the intercondylar tubercle of the tibia. These results suggest that PVS invades bones from the capsular or ligamentous attachments.

著者

長島 伸夫 早川 正夫 長井 寿 升田 博之 中西 栄三郎 中西 宣文 岩崎 勝

出版者

公益社団法人 自動車技術会

雑誌

自動車技術会論文集 (ISSN:02878321)

巻号頁・発行日

vol.53, no.4, pp.815-820, 2022 (Released:2022-07-25)

参考文献数

13

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老廃スクラップから創製した1180MPa級リサイクル鋼板について引張試験ならびに穴広げ試験を実施し,さらに部品要求性能として重要な疲労強度特性を把握するため荷重方式の異なる疲労試験を実施した.これらの結果から,スクラップから創製したリサイクル鋼板の自動車用鋼板としての適応性について検討する.

著者

平野 徹 岩崎 勝郎 鈴木 良平 浅田 和英 門前 芳夫

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.37, no.2, pp.884-887, 1988-10-25 (Released:2010-02-25)

参考文献数

8

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The results of marginal excision and irradiation (3, 000-5, 000cGy) in 9 patients with liposarcoma of soft tissue were analyzed to determine the effectiveness of radiation therapy. Only one out of 9 patients, who received 3000cGy, developed a local recurrence at 3 years and 3 months after surgery. The 5-year actuarial local control rate was 84.7%, which was similar to that by radical and/or curative wide resection in soft tissue sarcomas. In addition, histological examination disclosed that a liposarcoma with preoperative radiation fell into almost necrosis.It suggests that the combination of conservative surgery and radiation therapy in the treatment of liposarcomas is of use to maintain a functional limb.

著者

岩崎 勝彦 イワサキ カツヒコ Katsuhiko Iwasaki

雑誌

嘉悦大学研究論集

巻号頁・発行日

vol.54, no.2, pp.89-107, 2012-03-20

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サービス業は、我が国の生産するGDPの7割、また産業別就業者数の7割を占める(2010年)。製造業と比較して生産性の伸びが低いのはやむを得ないが、しかし今後サービス業の生産性をあげ、ものつくりと同様の「成長エンジン」として生産性や収益性を高める必要性があることも事実である。本稿では、ポーターの「ポジショニング論」とは異なる、日本が長年にわたり培ってきた「ものづくり現場」の発想(=『アーキテクチャ(設計思想)と組織能力の組合せ』)からみた「ポジショ二ング」の視点をベースに展開する。これは、所謂「擦り合せ型」ものづくりをサービス業の分野において適用した場合、どのような共通点や相違点があるのか、またその生産過程を調べることによって、収益力にどのように繋がっていくのかを、サービスの特徴を踏まえながら分析することを狙いとしている。身近な事例として、旅館・ホテル業を取り上げ、日本的サービス「おもてなし」が、どのような仕組みで品質を維持・安定させ、同時に収益力とどのように両立するのか、も併せて考察する。

著者

橋川 健 伊藤 信之 衛藤 正雄 角 光宏 山本 尚幸 岩崎 勝郎

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.44, no.1, pp.314-317, 1995-03-25 (Released:2010-02-25)

参考文献数

8

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We report on 57 cases of lateral condylar fractures of the humerus in children which were followed-up. Subjects comprised 40 boys and 17 girls with a mean age at injury of 6 years (range, 2-12 years). The follow-up period ranged from 9 months to 17 years with a mean of 7 years and 11 months. We studied the relationship between the carrying angle (C. A.), the range of motion (R. O. M.) of the elbows and the deformity of the lateral and medial condyles of the humerus after treatment. C. A. correlated with the length of the lateral and medial condyle. Limitation of flexion and extention of the elbow correlated with the length of the medial condyle. Varus or valgus deformities and limitation in the R. O. M. of the elbow after fracture of the lateral condyle of the humerus are relevant not only to the growth of the lateral condyle but also to that of the medial condyle.

著者

岩崎 勝郎 中嶋 裕 井上 喜博 前田 謙而 常岡 武久

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.35, no.1, pp.167-172, 1986-10-25 (Released:2010-03-16)

参考文献数

8

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In order to clarify the factors influencing the prognosis of the femoral neck fracture in young adults, 53 fractures in 52 patients were evaluated. All patients were between 13 and 49 years old.The incidence of non-union was 6 per cent of 49 fractures and of late segmental collapse (LSC), 24 per cent of 41 fractures. Non-union was seen in patients who had Garden Stage III and IV fractures, and in patients of more than 46years old at trauma. The LSC occurred in 6 of 9 Garden Stage IV fractures and in 2 of 8 transverse fractures in middleneck, as well as in 3 of 6 patients who had operation at 22 days or more after trauma.It is concluded that there is few problems on the bone union of the femoral neck fracture in young adults. The most important factor which influences the prognosis is LSC, and the occurrence of this complication i s related to the interval between trauma and operation, and to the type of fracture.

著者

馬場 秀夫 寺本 司 乗松 敏晴 藤田 雅章 松坂 誠應 岩崎 勝郎

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.39, no.4, pp.1667-1672, 1991-03-25 (Released:2010-02-25)

参考文献数

19

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The initial treatment that is usually recommended for symptomatic talocalcaneal coalition is nonoperative. But this time the operative treatment has been applied for those patients who fail to respond to the nonoperative treatment. Recently we treated five such cases by excision of the coalition because nonoperative treatment was not successful. Three cases were talocalcaneal coalition and two cases were calcaneonavicular coalition. The age of the patients at the time of surgery ranged from nine years to fortysix years. After the operation, we didn't use immobilization in a cast but started active exercises. Thus, operative treatment is a viable option if nonoperative treatment is unsuccessful; excision treatment, in addition to starting active exercise as soon as possible after the operation, is effective for tarsal coalition.We must suspect tarsal coalition for patients with limitation in subtalar joint and pain in the area of the coalition.We diagnose talocalcaneal coalition with radiography, tomoraphy, computed tomography and arthrography. Calcaneonavicular coalition is best seen on an oblique radiography.

著者

原 寛徳 伊藤 信之 岩崎 勝郎

出版者

Japan Shoulder Society

雑誌

肩関節 (ISSN:09104461)

巻号頁・発行日

vol.18, no.1, pp.82-87, 1994

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<Purpose> The purpose of this study was to investigate the strength of the glenoid labrum and capsule.<br><Materials and method> 15 shoulders of fresh cadavers were used for this study.6 of them were the right side and the rest of the 9 were the left side. Their ages ranged from fifty-five to eightyeight years. There were 6 males and 3 females. We determined the anterior, inferior and posterior portion of the labrum and capsule as the 3,6 and 9 o'clock position, respectively. The labrum and capsle were cut in 5mm width pieces. After fixing the glenoid, each respective piece of labrum and capsule was strained. We measured the applied force which detached the labrum from the glenoid.<br><Results> The 4 o'clock position was comparatively weaker than any other position, irrespective of the age or sex of the cadaver.<br><Conclusion> We conclude that the anterior-inferior portion of the glenoid is weaker than any other portion.

著者

岩崎 勝一 Shoichi Iwasaki

出版者

人工知能学会

雑誌

人工知能学会誌 = Journal of Japanese Society for Artificial Intelligence (ISSN:09128085)

巻号頁・発行日

vol.23, no.1, pp.105-112, 2008-01-01

参考文献数

24

被引用文献数

1

著者

原 寛徳 田口 厚 伊藤 信之 岩崎 勝郎

出版者

西日本整形・災害外科学会

雑誌

整形外科と災害外科 (ISSN:00371033)

巻号頁・発行日

vol.43, no.2, pp.695-697, 1994-03-25 (Released:2010-02-25)

参考文献数

5

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We investigated the mechanism stabilising the glenohumeral joint that prevents anterior dislocation. We measured the strength of the glenoid labrum and capsule in fifteen shoulders of nine fresh cadavers. The glenoid labrum and capsule were cut in widths of 5mm then the glenoid fixed and the labrum and capsule strained. We measured the tension when the labrum detached from the glenoid or the capsule ruptured. Results showed that the anterior-inferior portion is weaker than the other portion.