PFN Intramedullary Nails: These are used in proximal femoral neck fractures, subtrochanteric fractures, and intertrochanteric fractures. The proximal part of the nail has a triangular cross-section with a radiused, angled design that prevents rotation. The distal part has a circular cross-section with a slot that allows for both dynamic and static locking. Additionally, the distal part is channeled, designed to reduce thigh pain. The proximal section includes a channel at a 125° angle through which the integral compression and compression screw pair passes. This screw pair can provide up to 10mm of compression at the fracture line using the appropriate sizes. An inner compression screw is used to restrict the movement of this screw pair. Additionally, a peak screw is located at the proximal end. The nail has a cannulated, closed structure and features a 5° lateral offset angle.