Had surgery in my hand. Now I can't use my hand properly

I would need more information to evaluate your case. To recover in a medical malpractice claim, you must prove that the health care provider was negligent and that such negligence caused your injury or damage. An unsuccessful surgery or unexpected outcome, in and of itself, doese not prove that the physician was negligent. All of the medical records related to the surgery and your medical care would need to be reviewed by an expert to determine if you have a claim to pursue.