1 0 0 0 OA 平成27年度 相撲専門分科会 例会(講演会)
1 0 0 0 学生相撲における肩関節障害
- 著者
- 中川 泰彰 松末 吉隆 中村 孝志
- 出版者
- Japan Shoulder Society
- 雑誌
- 肩関節 (ISSN:09104461)
- 巻号頁・発行日
- vol.22, no.2, pp.161-164, 1998
Purpose: We have previously reported that shoulder pain was the fourth, and disability was the second problem for sumo* wrestlers. We examined sumo wrestlers directly in order to study the shoulder problems in sumo.<BR>Materials and Methosds: Forty-three major league Western Japan Student Sumo Federation sumo wrestlers were examined from February to April 1997. Their means were as follows: height-174.4cm,ght-106.2kg, body mass index-34.9, age -19.3 years old and length of sumo career- 9.5 years. We obtained their past histories, present disabilities, physical examination, ranges of motion and shoulder joint laxities. Results Twenty-two cases (51%) had past histories of the shoulder problems, which were 10 cases (23%) of shoulder dislocations,5 cases (12%) of contusions,4 cases ( 9 %) of acromioclavicular dislocations and so on. Seven cases (16%) had present disabilites, which were 2cases of shoulder dislocations,2 cases of acromioclavicular joint dislocations and so on. According to this study, the less heavy sumo wrestlers tended to injure and dislocate their shoulders more, and the number who complained of shoulder problems increased, with the length of sumo careers. There were no significant influences seen between the ranges of motion, shoulder joint laxities and shoulder problems.<BR>Conclusion: The lighter sumo wrestlers tended to injure and dislocate their shoulders more. It interfered with the wrestling of sumo, who had previously dislocated their shoulder.
1 0 0 0 アメリカンフットボール選手に発症した上腕骨頭軟骨損傷の2例
The symptoms of cartilage injury of humeral head are not well known. We experienced two cases of traumatic cartilage injury of humeral head in American football players.<BR>Both cases were young(21 and 20 years old), male college American football players and they were both running backs. The first case complained of motion pain for 1 year since he had fallen on his left shoulder after a tackle. This case showed osteoarthritic change and impression fracture of humeral head. The second case complained of pain and felt a click in abduction-external rotation after a blunt hit on his right shoulder by tackle one week before. The MRI showed Bankart lesion and cartilage injury of humeral head.<BR>In both cases, full thickness cartilage defects of humeral head were observed and these lesions were engaged to the anteroinferior edge of glenoids when the shoulders were abducted and externally rotated. They were treated by arthroscopic Bankart repair and returned to the sports after standard rehabilitation. Now they are relieved of their symptoms.<BR>There are few reports of cartilage injury of humeral head because the diagnosis is difficult without arthroscopy. These two lesions are located in the posterior portion of humeral head, which is different from typical Hill-Sachs lesions. There are cartilage lesions in anterior glenoid in both cases, which may induce the symptoms such as subluxation or click in abducted-external rotated position. These cases reveal that cartilage injury of humeral head is not rare in high-energy injury, especially in collision sports.