前幾天滑旱冰摔傷尾椎骨， 還是去拍了X光， 這是report， 請看看， 後麵兩句是什麽意思。謝謝！

The sacrum is unremarkable. No fractures or acute osseous abnormalities are seen. No
malalignment is present.
The sacroiliac joints are patent with minimal sclerosis. Slight hypertrophic changes of the
pubic symphysis is noted without significant sclerosis.