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The adjacent vertebral body showcases a bony defect not corresponding completely to the later fragment with sclerotic and irregular borders. The radiographic findings are typical in adults consisting of a small triangular or round bony fragment with sclerotic margins and osseous density. supported that shear stress or trauma (hyperextension or concomitant violent flexion and axial compression of spine) during childhood and adolescence leads to a prolapsing nucleus pulposus before cartilaginous ring apophysis and vertebral body ossification completes. described a strict correlation between TT COL11A1 genotype and LV in Japanese gymnasts while assuming that during growth sprout the epiphyseal plate is affected by a decreased expression of COL11A1 mRNA resulting in a weak epiphyseal plate. Numerous theories have been developed for the pathophysiology of this condition, which currently remains unclear. Among other apophyseal anomalies, LV represents the result of disc herniation into the adjacent vertebral body. Furthermore, intervertebral disc degeneration (IDD) seems to be related to ALV. Recent studies demonstrated the involvement of TT genotype of COL11A1 polymorphism along with age and sporting experience being risk factors of LV.
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Posterior limbus vertebra (PLV), although much more less frequent than anterior lumbus vertebra (ALV), can be symptomatic if it results in nerve compression mimicking an intervertebral disc herniation.
#Well corticated fragments meaning series
While the mainstream of patients leads an asymptomatic life with LV being an accidental finding in the lateral radiographic series of the spine, occasionally it can manifest with non-specific symptoms and signs, such as acute or chronic low back pain, spasm of the paravertebral musculature and radiculopathy, with or without trauma history. LV can affect the anterior or posterior column of the cervical and lumbar spine, with the anterorsuperior margin of a single vertebral body of the midlumbar spine being the most common site of manifestation. Schmorl in 1927 though its prevalence remains unknown. This condition was described for the first time by C.G. When this process takes place during childhood and adolescence before ossification happens, the extruded disc material disrupts the endplate, warding off the ring apophysis from the vertebral body. Get a printable copy (PDF file) of the complete article (3.4M), or click on a page image below to browse page by page.LV displays a primary pathology of the intervertebral disc, occurring as a result of herniation of the nucleus pulposus into the adjacent vertebral body.
#Well corticated fragments meaning full
Full textįull text is available as a scanned copy of the original print version. The lesion is well corticated (sclerotic margins) and usually does not produce signs or symptoms. The defect is limited to the cortex, commonly found at the metaphysis, but may be located in the diaphysis as the bone grows. Fibrous cortical defects are the most commonly seen benign lesions of long bones and are usually identified incidentally in radiographs taken for another reason. They may be confused with compression fractures, but again these lines are usually bilateral. Transverse, sclerotic, linear lines located at the metaphysis of growing long bones are due to short periods of growth arrest and have no clinical importance (fig 5). However, it is triangular, well corticated, in a classic location, and usually bilateral, which enables it to be distinguished from a fracture. The appearance may resemble an old ununited fracture fragment. The os trigonum is a common normal variant of the talus and is due to a separate ossification centre arising from the posterior tubercle.