Upper arm fracture nail system put to the test in 100-patient study

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients 18 years or older and skeletally mature. * Patient must have either a proximal humeral fracture or humeral shaft fracture requiring surgical intervention and be eligible for fixation by intramedullary nailing. * Patient has been or is scheduled to be treated with the Affixus Natural Nail System Humeral Nail. * Patient must be able and willing to complete the protocol required follow-up. * Patient must have a signed Institutional Review Board/Ethics Committee approved informed consent. (An Institutional Review Board/Ethics Committee is group that has been formally designated to review and monitor medical research involving human subjects.) * Patients capable of understanding the surgeon's explanations and following his instructions, able and willing to participate in the follow-up program and who gave consent to take part in the study. Exclusion Criteria: * Distal fracture involving the olecranon fossa. * Bone shaft having excessive bow or deformity. * A medullary canal obliterated by a previous fracture or tumor. * Active or previous infection. * Skeletally immature patients. * All concomitant diseases that can impair the functioning and the success of the implant. * Patients with mental or neurologic conditions who are unwilling or incapable of giving proper informed consent and following postoperative care instructions. * Patient is a vulnerable subject (prisoner, mentally incompetent or unable to understand what participation to the study entails, a known alcohol or drug abuser, anticipated to be non-compliant). * Patient known to be pregnant or breast feeding. * Likely problems with maintaining follow-up program (e.g. patient with no fixed address, long distance, plans to move during course of study). * Patients who have any condition that would in the judgment of the investigator place the patient at undue risk or interfere with the study. * Not expected to survive the duration of the follow-up program.