Re-Evaluation of GAmma3 Intramedullary Nails in Hip Fracture (REGAIN)

Inclusion Criteria: * Adult men or women aged 50 years and older (with no upper age limit). * An trochanteric fracture (stable or unstable) confirmed with anterior and posterior lateral hip radiographs, computed tomography, or magnetic resonance imaging (MRI). * Operative treatment within 3 days (i.e., 72 hours) after the trauma. * Patient was ambulatory prior to fracture, though they may have used an aid such as a cane or a walker. * Anticipated medical optimization of the patient for operative fixation of the proximal femur. * Provision of informed consent by patient or proxy. * Low energy fracture (defined as a fall from standing height). * No other major trauma. Exclusion Criteria: * Associated major injuries of the lower extremity (i.e., ipsilateral or contralateral fractures of the foot, ankle, tibia, fibula, knee, or femur; dislocations of the ankle, knee, or hip; or femoral head defects or fracture). * Retained hardware around the affected hip. * Infection around the hip (i.e., soft tissue or bone). * Patients with disorders of bone metabolism other than osteoporosis (i.e., Paget's disease, renal osteodystrophy, or osteomalacia). * Moderate or severe cognitively impaired patients (i.e., Six Item Screener with three or more errors). * Patients with Parkinson's disease (or dementia) severe enough to increase the likelihood of falling or severe enough to compromise rehabilitation. * Likely problems, in the judgment of the investigators, with maintaining follow-up. We will, for example, exclude patients with no fixed address, those who report a plan to move out of town in the next year, or intellectually challenged patients without adequate family support. * If the attending surgeon believes that a patient should be excluded from REGAIN because the patient is enrolled in another ongoing drug or surgical intervention trial. * If the attending surgeon believes that there is another reason to exclude this patient from REGAIN. This reason will be documented on the case report forms.