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The PFNA Nail (Proximal Femoral Nail Antirotation) is a state-of-the-art intramedullary fixation device specifically designed for the treatment of unstable fractures of the proximal femur. This device is an evolution of traditional intramedullary nails, incorporating a unique antirotation blade or screw to provide superior rotational and angular stability. The PFNA Nail is inserted into the medullary canal of the femur, providing robust internal support and allowing for minimally invasive surgery.
PFNA Nail
TOOLMED
Product Description
The nail is designed to match the anatomical curvature of the femur, allowing for easy insertion and a close fit within the medullary canal.
A unique, spiral blade or screw is provided to achieve immediate rotational and angular stability in the femoral head, preventing cut-out and improving fixation in osteoporotic bone.
The PFNA Nail is cannulated, allowing for precise insertion over a guide wire. This facilitates a minimally invasive surgical approach, which can lead to less blood loss and a faster recovery.
The nail features a proximal locking hole for the antirotation blade/screw and distal locking options to prevent rotation and provide additional stability, accommodating a variety of fracture patterns.
The implant is made from a high-quality titanium alloy, offering superior strength, biocompatibility, and fatigue resistance for long-term support.
The PFNA Nail is indicated for the treatment of trochanteric and subtrochanteric femoral fractures.
It is used for the fixation of unstable intertrochanteric fractures, high subtrochanteric fractures, and combinations of these fracture types.
The implant is suitable for both high-energy fractures in younger patients and osteoporotic fractures in elderly patients, where its unique design provides enhanced stability.
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The PFNA Nail (Proximal Femoral Nail Antirotation) is a specialized intramedullary nail designed for the stable fixation of fractures in the proximal femur. It is an evolution of traditional femoral nails, incorporating a unique antirotation blade or screw that provides superior rotational and angular stability. The nail is inserted into the medullary canal of the femur, providing robust internal support and allowing for minimally invasive surgery to treat complex fractures.
The PFNA Nail is primarily used for the treatment of unstable fractures of the proximal femur. Its main applications include fixation of intertrochanteric fractures, high subtrochanteric fractures, and combinations of these fracture types.
It is particularly well-suited for elderly patients with osteoporotic bone, where its powerful antirotation feature helps prevent implant cut-out and ensures reliable fixation.
The system is also used in cases where a minimally invasive approach is preferred to reduce patient trauma and promote faster recovery.
The PFNA Nail offers several key advantages over other fixation methods. Its minimally invasive surgical technique results in less soft tissue damage, reduced blood loss, and a potentially faster recovery time for the patient.
The implant’s design provides excellent biomechanical stability, which allows for immediate or early weight-bearing. The unique antirotation blade or screw significantly enhances fixation in the femoral head, making it an excellent choice for complex and osteoporotic fractures.
The comprehensive range of sizes and locking options also ensures a precise fit for various patient anatomies, contributing to high rates of successful bone healing.
The biomechanics of the PFNA Nail are centered on providing an internal splint that resists common failure modes. The nail’s intramedullary position effectively shares the load with the bone, reducing stress on the implant. The key biomechanical advantage comes from its antirotation blade or screw, which resists rotational forces and varus collapse. This provides crucial angular stability, preventing the femoral head from rotating or collapsing, which is vital for promoting successful bone union.
The implantation of the PFNA Nail is performed through a minimally invasive surgical technique. A small incision is made at the tip of the greater trochanter, through which the medullary canal is reamed.
Using specialized instruments and fluoroscopic guidance, the nail is inserted down the femur. The antirotation blade/screw is then carefully placed into the femoral neck and head, providing immediate stability.
Finally, distal locking screws are inserted to secure the end of the nail, completing the fixation and providing robust support for the fracture site.
Following a successful PFNA Nail fixation, the patient can often begin early, partial weight-bearing as tolerated, which is a significant benefit of this stable fixation method.
Physical therapy is a crucial component of recovery, focusing on restoring joint range of motion, improving muscle strength, and regaining mobility. This helps the patient return to their daily activities more quickly.
Regular clinical and radiographic follow-up appointments are essential to monitor fracture healing and ensure the implant remains stable throughout the recovery process, preventing any potential complications.
The PFNA Nail is a cornerstone of modern orthopedic trauma surgery for proximal femoral fractures. Its innovative design, combining strong intramedullary support with a dedicated antirotation mechanism, provides a reliable and effective solution for a wide range of patients. By enabling a less invasive approach and facilitating early patient mobility, the PFNA Nail leads to excellent clinical outcomes and an improved quality of life.
The PFNA Nail is primarily used to treat various fractures of the proximal femur, including unstable intertrochanteric, subtrochanteric, and combination fractures.
The antirotation blade provides superior rotational and angular stability within the femoral head. This is particularly beneficial in osteoporotic bone, as it helps prevent the implant from "cutting out" and losing fixation.
While all femoral nails provide internal fixation, the PFNA's key difference is its dedicated antirotation blade/screw design, which specifically addresses the rotational forces common in proximal femoral fractures, offering enhanced stability and a simplified surgical technique.
No, the PFNA Nail is specifically designed for the proximal femur. Different types of nails are used for shaft fractures or those near the knee.
The PFNA Nail is made from high-quality titanium alloy, which is biocompatible, strong, and highly resistant to corrosion and fatigue.
