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Vertebral fixation. 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 .
Spinal fusion. 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.
Minimally invasive spine surgery, also known as MISS, has no specific meaning or definition. It implies a lack of severe surgical invasion. The older style of open-spine surgery for a relatively small disc problem used to require a 5-6 inch incision and a month in the hospital. MISS techniques utilize more modern technology, advanced imaging ...
Harrington rod. The Harrington rod (or Harrington implant) is a stainless steel surgical device. [ 1] Historically, this rod was implanted along the spinal column to treat, among other conditions, a lateral or coronal-plane curvature of the spine, or scoliosis. Up to one million people had Harrington rods implanted for scoliosis between the ...
Polyaxial screw. 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 ...
Spinal fusion is usually needed when a curvature reaches 40 degrees. However, there is a window of opportunity for a minimally invasive surgery. The curvature needs to be between 0 and 70 degrees. Minimal rib rotation and only one curve is preferred. Also, minimally invasive spinal fusions are almost always only done in the thoracic region.
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