Treatment of Unstable Trochanteric Fractures With the Proximal Femoral Nail - Antirotation (PFNA)-Asia

Inclusion Criteria: * Age 65 years and older * Patients with isolated, unstable, closed trochanteric fractures, classified as AO 31-A2 or AO 31-A3 * Definitive primary fracture treatment with PFNA Asia within 7 days sustaining the fracture (conversion from an external fixator to the PFNA Asia as an emergency procedure within the first week after the accident is allowed) * Signed written informed consent (by the subjects or legal guardian) and agreement to attend the planned follow-ups * Willing and able to comply with the post-operative management program * Able to understand and read country national language at an elementary level Exclusion Criteria: * Pathologic fracture * Patients or legal guardian refusing to sign the informed consent form * Patients with previous implants on the fractured hip and femur * Drug or alcohol abuse * Active malignancy * ASA class V and VI * Patients who are bed-ridden or wheel-chair ridden prior to injury event * Neurological disorders and psychiatric disorders that would preclude reliable assessment (e.g., Parkinson disease, Multiple sclerosis, severe depression) * Patients who have participated in any other device or drug related clinical trial within the previous month