Macones A J, Fisher M S, Locke J L
Department of Diagnostic Imaging, Temple University Hospital, Philadelphia, PA 19140.
Radiology. 1989 Jan;170(1 Pt 1):117-9. doi: 10.1148/radiology.170.1.2783263.
In the course of routine chest examination, 80 asymptomatic patients were observed to have localized hyperostosis of the posterior ribs and articulating transverse processes. The authors studied the distributions of lesions in these 80 patients, and records were reviewed in the 50 cases in which they were available. The occupational histories, male-to-female ratio (5:1), and ratio of right-to-left rib involvement (9:1)--in addition to results of electromyographic and histologic studies and the principles of bone remodeling--suggest that this hyperostosis occurs at sites most stressed with bending and rotation of the thorax. The authors hypothesize that this stress-related change occurs due to the pull of the iliocostalis thoracis muscle and is of no clinical significance.
在常规胸部检查过程中，观察到80例无症状患者出现后肋和关节横突局限性骨质增生。作者研究了这80例患者病变的分布情况，并对有记录的50例病例进行了回顾。职业史、男女比例（5:1）以及左右肋骨受累比例（9:1）——除了肌电图和组织学研究结果以及骨重塑原理外——表明这种骨质增生发生在胸部弯曲和旋转时承受最大压力的部位。作者推测这种与压力相关的变化是由于胸髂肋肌的牵拉所致，且无临床意义。
