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The Hindfoot Fusion Ankle Nail is a specialized intramedullary implant engineered for arthrodesis, or surgical fusion, of the joints in the ankle and hindfoot. This system provides a robust, load-bearing internal fixation to hold the bones of the distal tibia, talus, and calcaneus in a stable, anatomical position, allowing them to fuse together into a single bone mass. Unlike fracture nails, its primary purpose is to provide long-term stability and compression to promote a high rate of successful fusion. This procedure is a definitive solution for severe arthritis, deformities, and instability, leading to significant pain relief and improved patient function.
Hindfoot Fusion Ankle Nail
TOOLMED
Product Description
The nail incorporates a specific distal bend to facilitate a safe entry through the calcaneus while ensuring the nail body is perfectly centered in the tibial medullary canal.
Features an integrated compression screw system that allows the surgeon to apply controlled axial pressure across the fusion sites, maximizing the contact between joint surfaces.
Proximal and distal locking holes are positioned in multiple planes to capture the talus and calcaneus securely, resisting the high torsional forces of the hindfoot.
Provides an optimal balance of high fatigue strength and a modulus of elasticity that promotes primary bone fusion while minimizing stress shielding in the distal tibia.
While this system is dedicated to the ankle, it utilizes the same high-precision Titanium locking technology found in our multi-functional trauma systems.
Often used in complex limb salvage cases where the overall mechanical axis from the hip to the foot must be restored to allow for functional walking.
The primary indication. Used for end-stage arthritis of the ankle and subtalar joints, rheumatoid arthritis, and stabilization of the hindfoot following failed joint replacements.
Indicated for the management of severe neuroarthropathy (Charcot foot), avascular necrosis of the talus, and correction of significant varus or valgus hindfoot deformities.
| Product name | Hindfoot Fusion Ankle Nail |
| Material | TA3 |
| Diameter | / |
| Length | / |
| Application | / |
| Certificate | CE Certificate |
| Brand | TOOLMED |
| MOQ | 1 Pcs |
| OEM | Avaliable |
| Package | PE Inner Bag+Carton |
| Payment Method | T/T，Bank transfer, Western Union |
| Delivery Time | 5-7 days |
| Shipping | DHL EMS UPS TNT FEDEX |
The Hindfoot Fusion Ankle Nail (Titanium) is a specialized retrograde intramedullary fixator used to fuse the three major bones of the hindfoot: the tibia, talus, and calcaneus. This procedure, known as a tibiotalocalcaneal (TTC) arthrodesis, is typically a salvage operation for severe joint destruction. The nail is inserted through the bottom of the heel (calcaneus) and advanced upwards into the tibial canal. Manufactured from high-strength Titanium alloy, the nail acts as a central internal splint. By using transverse locking screws and an integrated compression mechanism, the nail pulls the joints together, creating a rigid environment that allows the bones to grow together into a single, stable column. This eliminates the pain of arthritic joint motion and restores a functional mechanical axis to the leg.
This system is primarily applied in end-stage clinical scenarios where joint preservation is no longer an option. This includes severe post-traumatic arthritis, rheumatoid arthritis of the ankle and subtalar joints, and the stabilization of the foot in patients with Charcot neuroarthropathy. It is also an essential tool for "salvage" cases, such as following a failed total ankle replacement (TAR) or for patients with significant bone loss due to avascular necrosis (AVN) of the talus. Because the nail is intramedullary, it is highly effective for patients with poor soft tissue quality or peripheral vascular issues, where large incisions for plates would be dangerous. It provides a stable construct for correcting severe varus or valgus malalignments of the hindfoot.
The primary advantage of the TOOLMED Hindfoot Fusion Nail is its biomechanical strength and its ability to provide active compression across the fusion site. The Titanium construction is superior for long-term implantation, offering better biocompatibility and MRI compatibility than stainless steel. Our nail features an anatomical valgus bend and a specialized entry angle that minimizes the risk of damage to the plantar nerves and vessels. The system's "load-sharing" nature allows for a more natural distribution of weight compared to bulky external fixators or large side plates. Furthermore, the inclusion of a high-precision carbon fiber targeting jig ensures that locking screws are placed accurately through the talus and calcaneus, reducing operative time and improving the fusion rate.
Biomechanically, the hindfoot fusion nail functions as a rigid central internal splint. It is positioned along the weight-bearing axis of the lower limb, which significantly reduces the bending moments that often lead to the failure of plate-and-screw constructs. The nail is designed to resist the complex torsional and shear forces that act on the hindfoot during the gait cycle. By utilizing internal compression, the nail increases the "stability" of the interface between the tibia, talus, and calcaneus. This compression stimulates bone-on-bone contact and triggers osteoblastic activity. The result is a construct that can withstand physiological loads, allowing the patient to eventually return to weight-bearing with a specialized shoe or brace.
The surgical procedure is performed with the patient in a supine or lateral position. Joint surfaces are first debrided of all remaining cartilage to expose the subchondral bone. A small incision is made on the plantar surface of the heel. A guide wire is passed through the calcaneus and talus into the tibial medullary canal under fluoroscopic guidance. The canal is reamed to the appropriate diameter. The Titanium nail is then inserted in a retrograde fashion. Using the targeting jig, a specialized screw is passed through the calcaneus and into the talus to stabilize the lower joint. An internal compression screw is then tightened to pull the calcaneus toward the tibia. Finally, proximal locking screws are placed in the tibia to secure the construct. Alignment and compression are verified by intraoperative X-ray.
Postoperative care requires a period of non-weight bearing, typically in a cast or a specialized boot, for 6 to 12 weeks to allow for bone fusion. For the surgical facility, maintenance of the TTC instrument set is vital. The plantar entry reamers and the compression screwdrivers must be inspected for sharpness and mechanical integrity. Titanium nails are strictly single-use implants. All instruments must be cleaned of bone debris and sterilized using a standard steam autoclave at 134°C. Radiographic follow-up is critical at 6, 12, and 24 weeks to monitor for signs of bone bridging across the ankle and subtalar joints. Once fusion is confirmed, the patient can gradually transition to full weight-bearing in supportive footwear.
The TOOLMED Hindfoot Fusion Ankle Nail (Titanium) provides the rigid stabilization and compression necessary for the most challenging hindfoot salvage procedures. Its anatomical design and advanced mechanical features ensure that surgeons can achieve reliable fusion, helping patients with severe deformity or arthritis regain a stable and pain-free limb.
Retrograde insertion allows the nail to be placed through the heel, which is the most direct path to stabilize the tibiotalocalcaneal axis. This approach is minimally invasive and avoids the complex soft tissue and neurovascular structures around the anterior ankle.
Yes, in cases of severe bone loss or avascular necrosis of the talus, the nail can bridge the gap from the calcaneus directly to the tibia (Tibiocalcaneal fusion), provided that bone graft is used to fill the void.
Our integrated compression system primarily targets the ankle joint (tibiotalar), but the multi-planar locking screws ensure that the subtalar joint is also held under high stability to facilitate fusion.
Yes, the Titanium nail is designed for permanent implantation. It acts as a permanent internal support for the fused bones. It is only removed in the rare event of infection or extreme hardware irritation.
Our nail features a built-in 5-degree valgus offset, which matches the natural anatomical alignment of the human heel. This helps the surgeon restore a natural standing position for the patient.
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