13. 縫匠肌之剝離性骨折 This is a radiograph of the anterior superior illiac spine of the pelvis of a high school sprinter. Note the bony fragment that has dissociated from the pelvis (arrow). The patient pulled the bone fragment off the pelvis at the point of the Sartorious muscle attachement. The Sartorious is attached at the point of a growth plate, called an apopoysis, which renders the bone weaker and subject to possible fracture at times of intense stress. http://www.vh.org/adult/provider/radiology/icmrad/skeletal/Parts/Avulsion.jpg
90. the failure of the skeleton to withstand submaximal forces over time. the failure of the skeleton to withstand submaximal forces over time. http://www.mypacs.net/repos/mpv3_repo/viz/full/17093/854689.jpg