It comes from a defect under the ring apophysis or in vertebral endplate during the skeletal development stage [1]. Limbus vertebra
causes non spesific symptoms like low back pain, back pain, muscle spasms and radiculopathy
. It is frequently confused with vertebral fracture, infection, schmorl nodule or tumour [2,3].
What causes limbus vertebra?
Limbus vertebra is
marginal interosseous herniation of the nucleus pulposus due to congenital abnormality
, chronic stress and trauma to an immature spine during childhood and adolescence. The pathophysiology of limbus vertebra is likely to be similar and related to Schmorl’s nodes and Scheuermann’s disease.
Is limbus vertebra rare?
The limbus vertebra is
a rare condition poorly described
in the medical literature. Marginal intrabody herniation of the nucleus pulposus resulting in the separation of a triangular bone fragment.
What is limbus vertebral body?
A limbus vertebra is
a well-corticated unfused secondary ossification center
, usually of the anterosuperior vertebral body corner, that occurs secondary to herniation of the nucleus pulposus through the vertebral body endplate beneath the ring apophysis (see ossification of the vertebrae).
What is limbus fracture?
A limbus vertebra is a
bone tubercle formed by bone trauma on a vertebral body
, bearing a radiographic similarity to a vertebral fracture. The anterior-superior corner of a single vertebra is the common site for this defect although it can also be seen at the inferior corner as well as the posterior or anterior margin.
How do you treat limbus vertebra?
Limbus vertebra is usually diasgnosed incidently and usually doesn’t need treetment. Symptomatic patients are treated conservatively but if conservative treatment fails surgical treatment may be needed. Usually
total laminectomy
is necessery for sufficient excision of limbus fragment [2].
How do you get spondylosis?
Spondylosis is a type
of arthritis spurred by wear and tear to the spine
. It happens when discs and joints degenerate, when bone spurs grow on the vertebrae, or both. These changes can impair the spine’s movement and affect the nerves and other functions.
What is Scheuermann’s disease?
Scheuermann’s kyphosis (kye-FOH-sis) is
a condition affecting the upper back
. It makes the upper back rounded so it looks hunched over. It’s sometimes called Scheuermann’s disease.
What is spondylolysis?
Spondylolysis is
a stress fracture through the pars interarticularis of the lumbar vertebrae
. The pars interarticularis is a thin bone segment joining two vertebrae. It is the most likely area to be affected by repetitive stress.
What is the nucleus pulposus made of?
Nucleus pulposus is the inner core of the vertebral disc. The core is composed of a jelly-like material that consists of
mainly water, as well as a loose network of collagen fibers
. The elastic inner structure allows the vertebral disc to withstand forces of compression and torsion.
What is the vertebral ring apophysis?
The ring apophysis is
a secondary ossification center of the vertebral endplate connected to the intervertebral disc
. It is firmly attached to disc fibrous annulus through Sharpey fibers and its ossification occurs at 4-6 years old.
What is a limbus in the eye?
The limbus forms the border between the transparent cornea and opaque sclera, contains the pathways of aqueous humour outflow, and is
the site of surgical incisions for cataract and glaucoma
. … The vasculature of the limbus derives in primates primarily from the anterior ciliary arteries.
Why is it called a Chance fracture?
A Chance fracture results
from a flexion-distraction injury of the spine
. Manchester, UK radiologist G.Q. Chance first described this fracture in 1948 as a “horizontal splitting fracture of the spine.”[2] The association between the use of lap seat belts and the Chance fracture was not recognized until the 1960s.
What is a Hangmans fracture?
Hangman’s fracture is
a break in a specific part of one bone in the neck
. Bones of the spine are called vertebrae. The bone involved in hangman’s fracture is the second vertebra, toward the top of the neck, close to the skull.
What is a limbus?
:
the marginal region of the cornea of the eye by which it is continuous with the sclera
.
What is a teardrop fracture?
A flexion teardrop fracture occurs
when flexion of the spine, along with vertical axial compression
, causes a fracture of the anteroinferior aspect of the vertebral body. This fragment is displaced anteriorly and resembles a teardrop (see the image below).
