While it does sound likr a malpractice claim, there is no real way of estimating the value of the claim without examining all bills, medical records/op notes, diagnosis and prognosis, discussing with the patient the effect the surgery had on him or her (i.e. inability to work/perform certain functions etc), the age and occupation of the patient, as well as Diane of other contributing factors. I would be glad to review your records at no charge. Contact me at meltser@bmlaw.com