There's a few problems. Often, the deformations including desensitization of sexual pleasure caused by circumcision don't reveal themselves until years have passed as the body is reaching sexual maturity, so you're talking about a span of at least 14-16 years, plus a number of years before the victim realizes the full impact of that circumcision. So, providing there was malpractice in the first place, there would surely be a statute of limitations issue. Also, that's dependent on whether you could argue the deformity was the result of malpractice in the first place. It's a procedure that by intent mutilates a person by cutting off part of the person's genitals without permission. When done properly, the result is still a proper mutilation of a person without their permission. Malpractice would mean something improper was done. Next, you have the issue of blame. Does the doctor deserve the blame, or should we go after the parent(s) who made that choice on behalf of the child? Assuming the doctor was properly licensed to perform the procedure and did so correctly, you are left with the parent(s) who made the actual decision as guardian of the child. Finally, there's the religious aspect of circumcision. Germany is coming down hard on the practice, and it's catching flak from religious groups that say that Germany is being insensitive to religious freedom and mocking religion as being weird, behind the times, and anti-science.
Really, male circumcision isn't newsworthy in the U.S.. Women love it cause uncircumcised penises are "weird", religious people feel it's an important rite of passage, and so on. Basically, no one cares except for the victim. The closest circumcision has come to getting national attention was the recent deaths of babies in NYC resulting from neonatal herpes infection which happened during the Jewish practice of metzitzah b'peh (direct oral suction of blood by the mohel on the freshly circumcised penis). CNN reported an estimate of 20,493 babies receiving the ritual in June 2012 with an infection risk of 3.4 times the normal risk without the added practice. The mohel in the death has herpes and transmitted it to the child. So, yes, circumcision made news, but the story was really a story about an extreme religious practice that led to STD related deaths. The end result, if I remember right, was that NYC now requires a consent form.