My Mother Recently Had A Fall In The Bathroom And

My mother recently had a fall in the bathroom and has been unconscious since 1month 2weeks.The doctors treating confirms from CT scan and MRI that the internal wound has been healed but consciousness has not returned.Why? Her hands have swollen extremely and she is also detected of Urosepsis.Her age is 74 Years. Please let me know from your experience if she will come back or not.