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.