English
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Veterinary Orthopedic
TOOLMED
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1 Pcs
5-7 days
Product Description
The plate is pre-bent to ensure the wrist is fused in a slight extension, which optimizes grip strength and hand function for the patient post-surgery.
Threaded locking holes provide a rigid construct that prevents screw loosening and maintains the fusion angle even in cases of poor bone density or previous surgical hardware removal.
Made from Ti-6Al-4V Titanium, offering a high strength-to-weight ratio and minimal MRI artifact, which is crucial for monitoring the progression of the bony fusion.
The plate features smoothed, chamfered edges and a low-profile thickness to reduce the risk of tendon irritation and skin impingement on the dorsal aspect of the wrist.
While primarily for the wrist, the principles of this heavy-duty fusion plate can be adapted for small joint arthrodesis in the upper extremity where long-span stabilization is required.
Not applicable for the hip, but serves as a model for rigid reconstructive plating where multiple small bones must be fused into a single unit.
Indicated for multi-level carpal instability and pan-carpal arthritis. It is the primary choice for stabilizing the joint after severe crush injuries that destroy the articular surfaces of the knee-like carpal joints.
The primary indication: End-stage osteoarthritis, rheumatoid arthritis, post-traumatic arthritis, or revision of failed wrist joint replacements where total fusion is the only remaining option for pain relief.
| Product | REF | Specification | T/W/L(mm) | Matched Parts |
| Arthrodesis Of Wrist Joint Locking Plate(Straight Type) | 030211192041 | 2.0&2.4mm | 2*6.6*68 | 2.0/2.4cone guide |
| 030211202071 | 2.0&2.7mm | 3*8.2*82 | 2.0/2.7cone guide | |
| 030211212751 | 2.7&3.5mm | 3.3*10.2*106 | 2.7/3.5cone guide |
The Arthrodesis of Wrist Joint Locking Plate (Straight Type) is a specialized Titanium reconstruction implant designed for permanent fusion of the wrist. The "Straight Type" refers to its longitudinal alignment which spans three distinct bone groups: the distal radius, the carpal bones, and the third metacarpal. By utilizing locking technology, the plate creates a fixed-angle internal fixator that eliminates the minute movements between these bones that cause pain in arthritic joints. Titanium alloy is the material of choice for this procedure because of its high fatigue strength and its ability to integrate biologically with the fusion mass, ensuring a lifelong, stable repair for the patient.
This plate is applied in total wrist arthrodesis, a procedure performed to relieve severe pain and restore stability when the joint is beyond repair. Common applications include treatment for advanced rheumatoid arthritis, Kienböck's disease, or failed previous wrist surgeries. It is also used in salvage procedures following massive trauma or tumor resection where the joint surfaces have been lost. Because it spans from the radius to the metacarpal, it provides a very long lever arm that is extremely effective at preventing the dorsal or volar collapse of the wrist during the fusion period.
The primary advantage of the TOOLMED Straight Wrist Plate is its pre-contoured anatomical bend, which places the wrist in the "functional" position of slight extension. This position is vital for maintaining the patient's ability to grip objects effectively after the joint is fused. The locking screw technology is another major advantage, as it provides absolute stability even if the bone quality is poor (common in rheumatoid patients). Furthermore, the Titanium construction is highly resistant to corrosion and is biocompatible, reducing the risk of long-term implant rejection or irritation of the overlying extensor tendons.
Biomechanically, the plate acts as a tension-band bridge across the dorsal aspect of the wrist. When the patient attempts to flex their hand, the plate converts these tensile forces into compressive forces across the carpal bones, which is the ideal environment for bone fusion. The fixed-angle locking screws prevent the "toggling" of the metacarpal and radius fragments, ensuring the fusion angle does not change during the 3-6 month healing process. Titanium’s elasticity, being closer to bone than steel, helps distribute these forces more evenly, preventing the screws from cutting out of the bone.
The surgical technique begins with a dorsal longitudinal incision to expose the wrist joint. The articular cartilage is removed from the radius, carpal bones, and the base of the third metacarpal to create a raw bone surface. Bone graft is then packed into the joint spaces. The Straight Arthrodesis Plate is positioned, and the distal screws are placed into the third metacarpal first. The plate is then compressed against the radius proximally. Finally, locking screws are inserted into the radius and carpal bones using threaded drill guides to ensure a rigid, fixed-angle construct. The surgeon must verify that the screws do not interfere with the finger tendons before closing the site.
Postoperative care requires the patient to be in a splint or cast for several weeks until initial bone bridging is seen on X-ray. For the surgical facility, maintenance of the wrist fusion instrument set is essential. All threaded drill guides and specialized compression sleeves must be cleaned using ultrasonic baths to remove bone dust and biological debris. The Titanium plates are single-use; once they have been implanted, they must never be re-used. The instrument tray should be sterilized using a standard steam autoclave at 134°C. Periodic inspection of the screwdriver tips is required to ensure they provide maximum torque for the locking screws.
The TOOLMED Arthrodesis of Wrist Joint Locking Plate (Straight Type) provides a robust and reliable solution for total wrist fusion. Its combination of anatomical contouring, high-strength Titanium, and fixed-angle stability ensures that patients can achieve a painless, functional, and permanent fusion for even the most severe wrist pathologies.
Yes. While the wrist joint itself is fused and will not move, the finger and thumb tendons are preserved, allowing the patient to retain full gripping and pinching functions.
The dorsal side is the tension side of the wrist. Placing the plate here utilizes biomechanical forces to compress the joint surfaces together, which is better for bone fusion.
Yes, we offer various lengths, including shorter versions for localized carpal fusions that do not involve the metacarpals, although the Straight Type is most common for total fusion.
In most cases, the Titanium plate remains in the body permanently. Removal is only necessary if the patient experiences irritation of the tendons or skin due to the low soft-tissue coverage on the wrist.
Typically, 2.4mm or 2.7mm screws are used distally in the metacarpal, while larger 3.5mm screws are used proximally in the radius for maximum purchase.
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Yes, samples are available for evaluation. Please contact our sales team to request product samples and shipping arrangements.
Absolutely. We offer OEM/ODM services including custom packaging, branding, and product development tailored to your specifications.
