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Locking Plate Systems
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Information for vets about this repair method.

We have six locking plate systems; the PAX system from Securos, Fixin, the Kyon ALPS system, mini locking plates from VOI, Freelance Surgical locking plates and the Orthomed String of Pearls (SOP). Each system has characteristics that are complementary and allow us great flexibility in selecting the appropriate implant system for any given case.

Securos PAX Locking Plates

Rata Veterinary Surgery was one of only three practices in the UK to which the PAX system was initially released. PAX locking implants are sized from 2.0mm to 3.5mm, and are available as reconstruction or LCP straight plates, all manufactured from titanium. Screws can be placed at an angle to the plate in contrast to most locking plate systems, which require the screws to be placed perpendicular to the plate. This is especially useful when bone stock is limited, especially near joints. This system is ideally suited to MIPO fracture repair.

Intrauma Fixin Locking Plates

Fixin plates have a titanium bushing in a steel plate, and screws are sized from 1.7mm to 3.5mm, with three different plate sizes. Fixin manufacture a range of plates for specific indications. Amongst other uses we use Fixin plates for closing wedge TPLOs on small dogs, and distal femoral osteotomies in any size of dog. The Fixin Micro system is suitable for use on the smallest dogs.


We use this system primarily for PAUL surgery in cases of elbow dysplasia, but the range of plates available can have a number of applications.

Veterinary Instrumentation

The Dynamic Locking Plates are steel which facilitates contouring but these also have the flexibility of compression and locking in the same construct.

Orthomed String of Pearls Locking Plates

The SOP system uses standard stainless steel cortical screws and plates that can be cut to length so only the section of plate used is charged for.

The SOP plate is a very stiff implant, and is adaptable to a range of proximal limb and pelvic fractures but is a bulkier plate than the other systems and so is not suited to the distal limb.


N2 locking plates use a combination of DCP holes to allow compression of a fracture or osteotomy and evolox holes to allow locking screws to be placed. The evolox system is polyaxial which means locking screws can be angled away from joints or fracture lines making this a very versatile system. We routinely use N2 TPLO plates in our cruciate surgery, and this flexible system can be used for a range of fracture repairs. N2 supply a number of plates specifically designed for certain procedures such as various joint arthrodeses and distal femoral osteotomies, but can also build custom plates for us should we require something little more specialised than their "off the shelf" range.