Background: The fixation of lumbar spine is needed for various spinal problems such as fracture in lumbar spine, resection of tumors in vertebral bodies, gross spondylolisthesis, and lumbar instabilities. Majority of pedicle morphometric studies are based on white population in different parts of the world, whereas only a few studies are available on Indian population.Objective: To report the results of a morphometric study of adult atypical lumbar vertebrae's pedicles and correlate them physiologically to provide morphometric inputs for the use of this vertebral component in implants fixation in the population of Rewa, Madhya Pradesh, India.
Materials and Methods: This study was conducted on 20 dry human atypical lumbar vertebrae obtained from Department of Anatomy, Shyam Shah Medical College, Rewa (Madhya Pradesh, India). Pedicle vertical height (h) and pedicle width (w) were measured with the help of a sliding vernier caliper.Results: Positive correlations have been found between height and width of dry human lumbar vertebrae.Conclusion: Results indicated that in Rewa region of central India, 15-mm Steffee pedicle screw can be used safely for atypical lumbar vertebrae.
Background: Bones are structures that adapt to their mechanical environment and from a fetal age also adapt to the presence of naturally occurring holes called as nutrient foramina, which are narrow tunnels that conduct the nutrient arteries and the peripheral nerves. Objective: To determine the number, position, size, and direction of nutrient foramina of femur and to calculate foraminal index (FI) for each femur.
Sirenomelia is a rare congenital anomaly with an incidence of one in 100,000 pregnancies. It is also called as Mermaid Syndrome because of fused leg, giving appearance of mermaid's tail. The cause of the condition is probably due to abnormalities in gastrulation in caudal segments. It was initially termed caudal regression, but it is clear that structures do not regress, they simply do not form. It is also known as caudal agenesis and sacral agenesis. Sirenomelia is characterized by varying degrees of flexion, inversion, lateral rotation, and fusion of the lower limbs. Other anomalies associated with this condition are, defects in lumbar and sacral vertebrae, renal agenesis, imperforate anus and agenesis of internal genital structures except the testes and ovaries. Its cause is unknown. It occurs sporadically but is most frequently observed among infants of diabetic mothers. This study points out a detail analysis of phenotypic features along with structural alteration of internal organs. The possible causes and outcome of the condition can be correlated, that may help in better understanding of the condition and provide clues for possible management.
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