DePuy Trochanteric (ATN) Nailing Clinical Outcomes Trial

Inclusion Criteria: * Ability to understand and willing to sign the approved consent form. * 18 years of age * Skeletally mature * Have stable or unstable proximal femur fracture, including pertrochanteric, intertrochanteric, high subtrochanteric or any combination of the AO Proximal Femur Fracture Classification Exclusion Criteria: * Subjects with concomitant lower extremity injuries or multiple trauma that would interfere with normal hip fracture rehabilitation. * Subjects who have isolated or combined medial femoral neck fractures. * Subjects who are unwilling or unable to comply with a rehabilitation program or are unwilling or unable to be assessed for 1 year following surgery. * Subjects who are pregnant or breastfeeding. * Subjects who are a prisoner or a known alcohol or drug abuser. * Subjects who have a prior surgical history in the affected hip, or conditions that may interfere with outcome or impede healing. * Subjects who have an obliterated medullary canal or other conditions that may complicate the reaming process. * Subjects who have evidence of active untreated infections that may spread to other areas of the body. * Subjects who have a highly communicable disease or pathology that may limit follow-up. * Subjects, who in the opinion of the Clinical Investigator, have an existing condition that indicates the Subject is not a good candidate for the study. * Subjects who are participating in another clinical investigation. * Subjects known to have allergies to titanium, aluminum, vanadium. * Subjects who are currently eligible for workman's compensation.