A medical mistake during routine knee surgery reportedly left a woman's mother-in-law paralyzed. The incident occurred at a hospital, and it appears she is not the only person affected.

Further details about the incident are available from Nexstar's WKRN, who spoke with the woman about the medical error.

The mistake involved the administration of potassium during surgery, according to the woman's account. More information can be found through the original report from WKRN.