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A polyaxial screw is used for connecting vertebrae to rods in spinal surgery, particularly spinal fusion procedures. It is a type of screw whose spherical head is enclosed in a housing, which allows the screw a range of motion along several different axes relative to the housing. The ball joint allows the surgeon some flexibility in placing the ...
In recent years all-screw systems have become the gold-standard technique for adolescent idiopathic scoliosis. Pedicle screws achieve better fixation of the vertebral column and have better biomechanical properties than previous techniques, so enabling greater correction of the curve in all planes. [50]
Spinal fusion, also called spondylodesis or spondylosyndesis, is a surgery performed by orthopaedic surgeons or neurosurgeons that joins two or more vertebrae. [1] This procedure can be performed at any level in the spine (cervical, thoracic, lumbar, or sacral) and prevents any movement between the fused vertebrae.
Vertebroplasty had been performed as an open procedure for many decades to secure pedicle screws and fill tumorous voids. However, the results were not always worth the risk involved with an open procedure , which was the reason for the development of percutaneous vertebroplasty.
The application of robotic surgery is widespread in orthopedics, especially in routine interventions, like total hip replacement [11] or pedicle screw insertion during spinal fusion. [12] It is also useful in pre-planning and guiding the correct anatomical position of displaced bone fragments in fractures, allowing a good fixation by ...
Vertebral fixation (also known as "spinal fixation") is an orthopedic surgical procedure in which two or more vertebrae are anchored to each other through a synthetic "vertebral fixation device", with the aim of reducing vertebral mobility and thus avoiding possible damage to the spinal cord and/or spinal roots.
Fixation in orthopedics is the process by which an injury is rendered immobile. [1] This may be accomplished by internal fixation , using intramedullary rod , Kirschner wire or dynamic compression plate ; or by external fixation , using a spanning external fixator , Taylor Spatial Frame or Ilizarov apparatus .
As of 2019, the application of robotics in spine surgery has mainly been limited to pedicle screw insertion for spinal fixation. [76] In addition, the majority of studies on robot-assisted spine surgery have investigated lumbar or lumbosacral vertebrae only. [ 76 ]