Most medical malpractice cases do take longer than a typical personal injury case. This is because the medicine tends to be more complex and the medical malpractice insurance companies will spend a lot of money defending every case.
Also, you must have expert witnesses in order to prove a medical malpractice case. It can take time to obtain expert witnesses, have them thoroughly review the records, and give your attorney an opinion as to whether malpractice has occurred. Finally, the trial of the medical malpractice case may take longer than a typical automobile accident case. Again, this occurs in large part because the issues tend to be more complex.