What is a Scottie dog in radiology?
The Scottie dog sign (often seen spelled Scotty but Scottie is the correct spelling) refers to the normal appearance of the lumbar spine when seen on oblique radiographic projection. On oblique views, the posterior elements of the vertebra form the figure of a Scottie dog with: the transverse process being the nose.
Which aspect of the Scottie dog is the transverse process?
The posterior elements of the vertebrae form the impression of a Scottie dog. The nose of the dog is the transverse process, the eye is the pedicle, the neck is the pars interarticularis, the front leg is the inferior articular facet, and the ear is the superior articular facet [2].
Which part of the Scotty dog is represented by the lamina?
pars interarticularis
the superior articular facet representing the ear. the pars interarticularis (the portion of the lamina that lies between the facets) equivalent to the neck of the dog.
What is another name for Scotty dog deformity?
Lumbar spondylolysis (LS) is a bony defect of the pars interarticularis that occurs in approximately 6% of the general population and is identified more frequently in athletes1-3).
What is pars interarticularis defect?
The definition of pars interarticularis defect is a unilateral or bilateral overuse or fatigue stress fracture involving the pars interarticularis of the posterior vertebral arch. This injury occurs almost exclusively in the lower lumbar region, most often at L5 .
What is Spondyloptosis?
Spondyloptosis is defined as a complete anterior dislocation of the L5 vertebral body from sacrum. Treatment of the spondyloptosis is challenging.
What type of CR angle is required for posterior oblique left posterior oblique LPO ]/ right posterior oblique RPO ]) positions of the cervical spine?
An RPO position of the cervical spine requires a 45° oblique of the body with a 15° caudad CR angle. Another term for a breathing technique during exposure is the orthostatic technique.
What is the Scottie dog?
The Scottish Terrier (Scottish Gaelic: Abhag Albannach; also known as the Aberdeen Terrier), popularly called the Scottie, is a breed of dog.
Will spondylolisthesis heal on its own?
Spondylolytic spondylolisthesis: Usually develops in early adolescence, especially in young athletes. It is believed to be the result of a stress fracture in the vertebrae that never heals properly. This condition does not go away on its own and can last a lifetime if not treated.
How does a pars fracture happen?
Spondylolysis (sometimes called by the shortened name, “pars fracture”) usually occurs during childhood or adolescence from repetitive stress, rather than from an acute injury. In other words, it is usually a stress fracture rather than a sudden break.