PTA (PROGRESSIVE TIBIAL ALIGNMENT)
6Pages

Gradual correction Minimally invasive Sterile kit

Introduction Medial compartmental osteoarthritis of the knee develops more rapidly if it is associated with a varus of the tibia and a lateral ligament insufficiency. In such circumstance, a metaphyseal realignment through an osteotomy of the tibia is the only solution to reduce the pain and the joint effusion. Such operation, if performed in the initial stages of the condition, delays the course of arthritis. The PTA external fixator is used to correct the varus of the tibia through a progressive distraction. The operation is simple, quick and minimally invasive. Indication Correction of...

Key surgical steps With the knee in flexion at 50°, insert a Ø 1.6 mm wire in the joint surface and proceed until the spine of the tibia. Apply the guide block into the wire previously inserted. Proceed with the insertion of the screws ensuring that they are inserted medially on the frontal plane. Insert the screws in the following order: • proximal cancellous screw • cortical screw in the most distal hole • insert the remaining two screws When inserting screws, use a power tool to go past the first cortex and then proceed by using the T handle until you go past the second cortex. Perform...

Apply the external fixator. Secure the screw clamps using the 12 mm T-wrench. Loosen all the integrated screws in the central part of the fixator by using the Hexagonal 3 mm screwdriver. Perform the distraction by using the flat wrench and check the opening wedge of the osteotomy. Close the compression and distraction unit and tighten all the integrated screws in the external fixator. Postoperative management The patient is supplied witgh a 3 mm hexagonal wrench and a 23 mm flat wrench for the following postoperative management. One rotation of the compression and distraction unit...

PTA complete instrument tray Guide block for screw positioning PTA sterilization tray (empty) (*) Implantable and sterile devices are covered by the CE 1936 mark, non-sterile reusable instruments are CE marked

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