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Leksell Stereotactic System® is the most widely used frame in the world. Reliability, flexibility, versatility and ease-of-use are the key features of the Leksell Stereotactic System®. The system is based on the center-of-arc principle and the basic components are the cartesian coordinate frame and a semi-circular arc. Since Professor Lars Leksell introduced the world's first instrument over 50 years ago in 1949, it has been leading the way by setting the standard, occupying a front-line position in stereotactic surgery worldwide. The modular design of the system, unique components and range of optional accessories offer the surgeon an optimal operative system. The system is used for diagnostic and therapeutic procedures, such as functional interventions, microsurgical procedures or Gamma Knife® Surgery. For pediatric surgery the light weight of the instrument is an invaluable feature. The high quality standards and the continuous development of the system have made it an indispensable and user-friendly tool in the surgical array, appreciated by surgeons as well as patients. Designed for easy, versatile, and fast operation Frame fixation to the patient's head is easily achieved with adjustable fixation posts and self-tapping screws. A variety of exchangeable front pieces afford maximum flexibility, both with regard to access to the patient's nose and mouth, and in terms of frame positioning.
After the frame's fixation, images are taken for preoperative planning. This is easily performed as Leksell Stereotactic System® is compatible with all types of imaging modalities. CT, MR, X-ray, DSA or PET localization may be performed with the same frame in any sequence. The adapter ensures that the patient's head is comfortably supported throughout the scanning procedure. CT and MR scans are made parallel to the frame providing maximum reproducibility. This unique feature allows scans to be compared to each other or to atlases. | | Localization and target coordinate determination are fast and easy, offering a choice of independent localization methods. These include an entirely manual method, standard scanner software or use of dedicated computer software systems.
Once localization is completed, the system is easily prepared for surgery by simply attaching the Leksell multipurpose arc to the frame. The arc is positioned according to the previously calculated X, Y and Z coordinates of the target so its center coincides with the selected cerebral target. Because of the complete freedom of choice for the entry point, the target can be reached from any direction without the need for computer calculations or phantom simulations. To facilitate the operative procedure the frame is secured to the operating table with a Leksell Stereotactic System® clamp for use with the Mayfield® Headrest*. Allowing all-around access The center-of-arc principle permits full flexibility in terms of access to all intracranial areas. It provides complete freedom of choice in trajectory and entry point selection. Posterior fossa, transphenoidal and full lateral approaches are possible, in addition to all other approaches.
Unlimited number of applications There are several examples of areas in which the application of stereotactic techniques expands the surgeon's options. By increasing the number of choices available, the surgeon's chances of finding the optimal treatment modality for the individual patient increases significantly. A process of continuous development has expanded the use of stereotactic instruments from basic diagnostic procedures into more advanced therapeutic applications. In traditional microsurgery, the implementation of stereotactic principles for surgical guidance allows the surgeon to approach targets in a more direct and less traumatic way. Read more ...
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