====== Self-retaining retractor ======


Self-retaining [[retractor]]s have locking mechanisms that keep the [[blade]]s apart and in place while spreading the edges of the [[incision]] and holding other tissue in place, thus freeing the surgeon's and assistant's hands for other tasks.

[[Retractor]]s should not be placed deeper than the [[platysma]] to avoid injury to [[recurrent laryngeal
nerve]], which runs between the [[esophagus]] and [[trachea]]. Blunt retractors are used to avoid [[internal jugular vein]] injury

===== Lumbar Self-retaining retractor =====

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A self-retaining retractor is a surgical instrument that helps surgeons maintain the surgical site open and provides optimal exposure to the surgical field without the need for an assistant to hold the retractor in place.

In lumbar discectomy, a self-retaining retractor is used to hold the soft tissues and muscles of the back apart, allowing the surgeon to visualize the affected area of the spine and access the herniated disc. The retractor consists of two blades that are spread apart, and the blades are held in place by a ratchet mechanism, which keeps them open during the surgery.

The self-retaining retractor can be adjusted to provide optimal exposure to the surgical site and can be repositioned as needed. This allows the surgeon to work comfortably and efficiently, reducing the risk of injury to the patient and the surgeon.

The use of a self-retaining retractor in lumbar discectomy has several advantages over traditional retractors, including improved visualization, reduced surgical time, and decreased soft tissue damage. It also allows for a smaller incision and decreases the risk of postoperative complications. However, the use of a self-retaining retractor requires specialized training and experience, and it may not be appropriate for all surgical cases.
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There are several types of self-retaining retractors used in lumbar spine surgery, including:

[[CASPAR Lumbar Retractor System]]

[[Markham-Meyerding Hemilaminectomy Retractor]]

[[Cobb]] 

[[Greenberg]]

[[Mollison Self-Retaining Retractor]]

[[Tubular Retractor]]: This retractor is used in minimally invasive lumbar spine surgeries and consists of a tubular retractor that is inserted through a small incision in the skin. The retractor is then expanded to provide visualization of the surgical site.