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Biomecánica

Ankle arthroscopic technique for treatment of osteochondritis – TATTO

Ankle arthroscopic technique to accede to the injured area without carrying out osteotomies of the tibial malleolus.

Description

The new TATTO system has been designed by the Department of Mechanical Engineering of the Instituto Tecnológico de Canarias in collaboration with Dr. Javier Ara Pinilla (Service of Orthopaedic and Traumatologocal Surgery of the University Hospital of the Canarias). The system is consists of a set of surgical instruments with which to perform the arthroscopic treatment of the ankle osteochondritis.
This pathology is caused by the detachment of an osteochondral fragment (cartilage and part of underlying bone), changing the functioning normal of the joint. Most of the time should be treated surgically, using different techniques to repair the chondral lesion, some of which require osteotomy of the internal malleolus and the subsequent osteosynthesis.
This is the main advantage that the TATTO system offers, as through an arthroscopic approach (minimally invasive and unprecedented) allow you to carry out through the opening of a transosseous route, and without need to performing the osteotomy of the malleolus, the great majority of the therapeutic possibilities in existence to repair the chondral lesion. Once the lesion is repaired, the transosseous route is closed off.
The set of instruments designed for the making of a transosseous route enables to carry out the majority of the therapeutic arsenal with the low morbidity corresponding to an arthroscopic procedure and the security of open procedure.
The set of instruments needed to perform all phases of the operation consists of a surgical guide that serves as a reference throughout the intervention, to which will be docked or undocked various components depending on the time, a trephine which opens the surgical approach and an impactor, which initially is marked a reference in the tibia, to ensure that the bone block is fixed with the same orientation to close the surgical approach and after repairing, the mark helps the surgeon to reposition the bone block .

Potential Benefits and Uses

This is a new minimally invasive technique that allows access to the injured area via the arthroscopic route without need to performing the osteotomy of the malleolus (is a cut to the bone, requiring that the bone subsequently be replaced it via osteosynthesis, lengthening the recovery period). This approach allows the surgeon to use a wide range of techniques to repair the injury, in a simple and reproducible way. Allows the use of reabsorbable material and the post-operative period required is minimal.

Transfer / Commercialization

This technique has already been carried out experimentally with highly-favourable results at the University Hospital of the Canary Islands.

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