Hydrodissection

Hydrodissection (pronounced: hy-dro-dis-sec-tion) is a medical procedure used in various surgical fields, including ophthalmology, otolaryngology, and neurosurgery. The term is derived from the Greek words 'hydro' meaning water and 'dissection' meaning to cut apart.

Definition

Hydrodissection is a technique that involves the use of fluid (usually saline solution) to separate layers of tissue during surgery. This is done to facilitate the removal of certain structures or to protect surrounding tissues from potential damage during the surgical procedure.

Procedure

In the context of Ophthalmology, hydrodissection is commonly used during Cataract Surgery. The surgeon injects a balanced salt solution between the lens capsule and the cortical lens material to separate these layers. This allows for easier removal of the cataractous lens.

In Otolaryngology, hydrodissection can be used in procedures such as Parotidectomy or Thyroidectomy to protect important structures like the facial nerve or the parathyroid glands.

In Neurosurgery, hydrodissection is used to separate the brain or spinal cord from tumors or other structures, minimizing the risk of damage to these vital tissues.

Related Terms

Dissection: The process of separating tissues for anatomical study or surgical treatment.
Hydrodelineation: A similar procedure to hydrodissection, but used to separate different layers within the lens itself during cataract surgery.
Saline Solution: A mixture of salt and water that is often used in medical procedures, including hydrodissection.

Etymology

The term 'hydrodissection' is derived from the Greek words 'hydro' meaning water and 'dissection' meaning to cut apart. It refers to the use of fluid to separate layers of tissue.

External links

Medical encyclopedia article on Hydrodissection
Wikipedia's article - Hydrodissection

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Hydrodissection