The optimal location for pins is 1 cm above the pinna of the ear, in line with external auditory meatus and below the equator of the skull (Figure 30-2). A pin that is too anterior will place the temporalis muscle and the superficial temporal artery and vein at risk.
One may also ask, how many pounds is cervical traction?
It appears that at least 25–30 pounds of force are required to produce measurable separation of the cervical vertebrae. The traction force must be at least the weight of the head to produce any significant decompression.
Moreover, what are Mayfield pins?
The MAYFIELD Radiolucent Disposable Skull Pins are intended for use with a skull clamp that is placed on the patient’s skull to hold the head and neck in a particular position during surgical procedures where rigid skeletal fixation is desired and intra-operative CT or MR imaging is used.
What is a Craniotome used for?
A cranial drill, also known as a craniotome, is a tool for drilling simple burr holes (trepanation) or for creating larger openings in the skull. This exposes the brain and allows operations like craniotomy and craniectomy to be done.
What is a Mayfield head holder?
Background: The Mayfield skull clamp is the most commonly used 3-pin head immobilization device. It is routinely used in cranial neurosurgical procedures and selected cervical procedures. Despite its role in some serious complications, guidelines and nuances on the correct application of the Mayfield clamp are lacking.
What is a skull clamp?
A neurosurgical head holder (skull clamp) system is a device used to secure the patient’s head position during surgical procedures. The system may include a head holder frame that attaches to the operating table, skull clamp, neurosurgical head hold stabilization components, skull pins and other accessories.
What is Pterional craniotomy?
The pterional craniotomy is a unique approach that provides wide access to the skull base. It is named after the pterion, the junction point of 4 bones within the skull (frontal, temporal, greater wing of sphenoid, parietal) and is considered a fundamental tool in the armamentarium of the neurosurgeon.
Why is it called a hangman’s fracture?
A hangman’s fracture is a break in the second vertebra of your neck, called the C2, or axis. This bone forms a ring around your spinal cord. A hangman’s fracture occurs on both sides of this bone. Despite its gruesome name, a hangman’s fracture is rarely caused by hangings.