There are many different areas of law that a lawyer or law firm may specialize in. Most lawyers are licensed to practice in one or more state. Some lawyers are admitted to practice before various federal district courts within which there are many different specialty areas of law.
If you are seeking legal advice, it is important that you get this from a lawyer who is licensed to practice in the jurisdiction that covers the problem you are seeking advice for.
Hip Replacements and Personal Injury Law
Many bad hip replacements fall under the umbrella of personal injury law. If a person’s hip replacement problem is one caused by a medical professional, it typically falls under a smaller umbrella of medical malpractice. If a person’s hip replacement problem is one caused by the device or implant that was used to replace part(s) of a their hip, the victim’s claim would also likely be one that falls under personal injury but is more likely to be dealt with in a product liability claim.