If your mum has no previous convictions and it wasn't her intention to cause injury, I would be surprised if she got charged to court. A more accurate answer would need more details
I broke my wrist doing a flip.
I've twisted my wrist.
My wrist is hurting.
After being caught cheating on the exam, the student received only a slap on the wrist from the school principal as punishment.
After causing a minor disruption in class, the student received only a slap on the wrist from the teacher.
contemporery
The left wrist is the watch wrist for both men and women.
Your wrist is between your arm and your hand.
my wrist hurts real bad
left
The policeman placed a handcuff on each wrist of the criminal.
I thought Zayn broke his ankle? Oh well Zayn broke some kind of bone....