Neuropraxia can happen for many reasons. Nerves may become crushed or compressed. When this happens, they can’t send electrical impulses. Traumatic neuropraxia can result from: Bone fractures. Dislocation. Tears and injuries to ligaments and tendons. You can also develop neuropraxia after: Surgery (including after anesthesia). Giving birth. Dental work, if nerve damage occurs during anesthetic injections, tooth extraction or endodontic procedures.