At the core of the MAST ALIGNEDSM procedure is the new CD HORIZON® LONGITUDE® II System, a multi-level percutaneous fixation system designed to. Horizon Longitude, Medtronic, Minneapolis, USA) has been described in detail elsewhere [14]. For minimally invasive thoracic instrumentation. experience and Medtronic expertise. Profile. Performance. Efficiency. 1 Based on internal testing of a CHROMALOY™ and CHROMALOY™ Plus rod construct.

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Longitjde loss or decrease in bone density, possibly caused by stresses shielding. Complications of minimally invasive posterior fixation reported in the literature included screw misplacement requiring revision, neurological injury, radicular pain, instrumentation prominence, and wound infection [ 710131519 ].

The PathFinder system using fluoroscopic llngitude has a unique design, which is simple, easy-to-use, and extremely versatile. Anteroposterior AP and lateral fluoroscopic images are obtained, and the vertebrae to be instrumented are determined with the C-Arm and longgitude midline, lateral pedicular, and interpedicular lines marked on the skin.

Any retrieved devices should be treated in such a manner that reuse in another surgical procedure is not possible. After removal of the dilators, the cannulated screws are introduced over the guide wires into their trajectory. Should posterior fusion need to be performed, the simplest type of posterior fusion is facet fusion. Do not use with stainless steel. Author information Article notes Copyright and License information Disclaimer.


Development of respiratory problems, e. Percutaneous pedicle screw insertion is a novel technique.


The PathFinder fixation system needs modeling of the rod before its positioning because it does not allow in situ correction. Technical tips and pitfalls The operative technique of the PathFinder and Sextant systems is similar.

Percutaneous Transpedicular Fixation: Technical tips and Pitfalls of Sextant and Pathfinder Systems

In another case, backward dislodgment occurred while removing the tap. If there is still a difficulty in seating the rod, consideration should be made for extending the procedure to an open one. We had to repeat all steps of screw introduction from the beginning. Several recent approaches to minimally invasive posterior fusion with internal fixation have been described. The Sextant percutaneous stabilization system consists of polyaxial cannulated screws and pre-bended lordotic rods with Jamshidi needles, guide wires, cannulated tap, and special assembly connectors.

Patient Positioning and Approach 6 2. Operative techniques, technical tips, and pitfalls were recorded for both systems.

To save time and reduce radiation exposure, we prefer to cannulate all pedicles, at least on each side, using AP projection with confirmation provided using lateral projection. The operative technique of the PathFinder and Sextant systems is similar.

No monoaxial screws were used. Only sterile products should be placed in the operative field. Successful percutaneous placement of pedicle screws requires surgical skill and experience because of lack of anatomic surface landmarks. Claimed disadvantages of percutaneous screws include potentially longer operative times, the need for a steady learning curve, loss of surgeon control medtrpnic tactile feel, and an inability to visualize open anatomy.


CD HORIZON LONGITUDE. Multi-Level Percutaneous Fixation System – PDF

Page 3 Surgical Technique Posterior. Cleaning and disinfecting of instruments can be performed with aldehyde-free solvents at higher temperatures.

Surgical Technique Vertex Select reconstruction System Posted Screw Module Surgical Technique the Vertex Select reconstruction System is a comprehensive set of options that provides adjustability, flexibility, and adaptability More information. Nonetheless, in one patient with osteoporosis, advancement of the guide wire into the abdomen occurred with rapid take out during introduction of the screws.

The chance to convert the minimally invasive style into an open conventional style at a given lonfitude is always possible by extending the skin incision and opening up the fascia and dissection down to the level of the rod and screw. Inability to perform the activities of daily living. Emerging minimally invasive technologies for the management of scoliosis.

These patients should be advised of this fact and warned of this consequence.

Percutaneous Transpedicular Fixation: Technical tips and Pitfalls of Sextant and Pathfinder Systems

In this approach, percutaneous instrumentation minimized the lnogitude incision length and muscle dissection.

Potential complications Regarding the need for fusion, biomechanically the survival of the implant is questionable. Please review our privacy policy.

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