著者
原 寛徳 伊藤 信之 衛藤 正雄 朝長 匡 ラッビ M. E. 安達 耕一
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.46, no.3, pp.894-897, 1997-09-25 (Released:2010-02-25)
参考文献数
5

This study investigated the relation ship between the slope and shape of the acromion and the spur at the antero-inferior surface of the acromion no clarify the cause of subacromial impingement. This investigation was performed with 205 scapular dry bone specimens. The specimens of 107 males were used. Their ages ranged from 20 to 83 years with an average age of 56.5 years. The presence of acromial spurs was identified. All acromions were classified visually as type I (flat), type II (curved) or type II (hooked) as described by Bigliani et al. And the slope of the acromion was measured in all specimens.A spur at the antero-inferior surface was seen in 96 acromions (46.8%). And almost all spurs were located in the anterior one third of the acromion. In all specimens, fifty-six acromions (27.3%) were type I, one hundred and eight (52.7%) were type II and forty-one (20.0%) were type III. The type of acromion was not related to the presence or absence of a spur. The average slope of all acromions was 46±8°, that of acromions with spur was 44±7° and that of acromions without spur was 49±8°. There was a significant difference between the slope of the acromion with spur and acromions without spur. From this study it can be concluded that the type of acromion had no relation ship to subacromial impingement and the flattened slope of the acromion might be one cause of subacromial impingement.
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

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 信之 村木 征人 宮下 憲 阿江 通良 森田 正利 ムラキ ユキト ミヤシタ ケン アエ ミチヨシ
出版者
日本体育協会
雑誌
日本体育協会スポーツ医・科学研究報告書
巻号頁・発行日
pp.9-19, 1989

平成元年度日本体育協会スポーツ医・科学研究報告No.VII「スプリントアシスティッド・トレーニングに関する研究」(第2報)より
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

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
穂積 晃 伊藤 信之 衛藤 正雄 朝長 匡 井上 博文 進藤 裕幸
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.48, no.2, pp.524-527, 1999-03-25 (Released:2010-02-25)
参考文献数
3

We reported a case of radial head dislocation, the pathology of which we could determine by MRI images.A 12 year old boy, who had had no traumatic history of his right elbow, was introduced to our hospital due to the flexion disturbance of his right elbow. Pre-operative MRI images showed the soft tissue at radio-capittelar joint. So we estimated it annular ligament.In the annular ligament existing in the radio-capittelar joint which was seen on MRI images. We performed only reduction of the annular ligament and radial head without reconstruction of the ligament.MRI was useful in understanding the pathology of this case, and it may be a dislocation caused by “pulled elbow” during his childhood.
著者
石村 啓輔 伊藤 信之 千葉 剛次 岡崎 威 鈴木 良平
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.27, no.4, pp.693-696, 1978

We have observed the pattern of muscle action during rotational movement of the humerus by recording angular deviation and electromyograph simultaneously.<br>Results were summarrized as follow:<br>1) From the beginning of external rotation of the humerus, electrical activity was recorded from the infraspinatus and the teres minor.<br>During later half of this movement, electrical activity was found from the deltoideus (posterior fiber), the latissimus dorsi, the supraspinatus and the rhomboideus.<br>2) In internal rotation of the humerus, electrical activity was recorded from the subscapularis. The pectralis major was active in half of the cases, but the deltoideus (anterior fiber) and the latissimus dorsi were inactive during this movement.
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

<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
穐山 富太郎 伊藤 信之 鈴木 良平 川口 幸義
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.24, no.4, pp.460-464, 1975-12-10 (Released:2010-02-25)
参考文献数
25

We studied on the relation between primitive reflexes and motor development by means of taking movie.Primitive reflexes (Moro reflex, Asymmetrical tonic neck reflex, Crossed extension reflex. Babinshi reflex ete) activate all kinds of automatic movement integrated by higher brainstem, and furthermore these reflexes activate development of righting reaction, parachute reaction, balance reaction and voluntarity.Namely, primitive reflexes activate mainly automatic movement but these reflexes exert too promotive influence on the development in the early stage learning anti-gravitic posture and normal sensori-motor pattern in each motordevelopmental stage.
著者
宮本 俊之 伊藤 信之 衛藤 正雄 朝長 匡 原 寛徳 大渡 伸 M. E. Rabbi
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.46, no.3, pp.890-893, 1997-09-25 (Released:2010-02-25)
参考文献数
8

There are rarely few reports on the clavicular motion during elevation of the extremity. This is may due to the complicated shape of the clavicle and its three-dimensional movement. The purpose of this study is to analyze the movements of clavicle by using X-ray fluoroscope.The study was performed on a 21 years old female who had clavicular fracture a year ago and had fixation with plate and screws. She had no difference on both shoulder ROM when examined. In front of X-ray fluoroscope, she was asked to abduct her arm to full in 10 seconds, and the movements were recorded on videotape. From the location of plate and screws we analyzed the clavicular motion.The clavicle rotated clockwise in its long axis when viewing from the left sagittal plane. This movement increased constantly during the elevation of arm and reached 50 degrees at maximum abduction. In Frontal view, 25 degrees of upward movement was observed, where the majority of the movement was seen within 90 degrees of elevation.
著者
阿江 通良 村木 征人 宮下 憲 伊藤 信之 森田 正利
出版者
日本体育協会
雑誌
日本体育協会スポーツ医・科学研究報告書
巻号頁・発行日
pp.37-45, 1989

平成元年度日本体育協会スポーツ医・科学研究報告No.VII「スプリントアシスティッド・トレーニングに関する研究」(第2報)より
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

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.
著者
伊藤 信之
出版者
横浜国立大学
雑誌
基盤研究(C)
巻号頁・発行日
2007

本研究の目的は,走幅跳の助走動作をバイオメカニクス的に分析し,大学生走幅跳選手の助走トレーニングへの適用の可能性を探ることであった.助走後半の走動作は,助走動作局面,移行局面,踏切準備局面に分けられ,それぞれの局面ごとに動作評価のための評価要素を抽出することができた.これによって,実際の競技会などで撮影された動画を対象にして,詳細な動作分析を省いても,的確な評価を行っていくことが可能となると考えられた.