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A sacral dimple is defined as a midline dimple less than 5 mm in diameter and no further than 2.5 cm from the anus without associated visible drainage or hairy tuft. [6] Sacral dimples are common benign congenital anomalies found in up to 4% of the population.
Caudal regression syndrome, or sacral agenesis (or hypoplasia of the sacrum), is a rare birth defect. It is a congenital disorder in which the fetal development of the lower spine—the caudal partition of the spine—is abnormal. [1] It occurs at a rate of approximately one per 60,000 live births. [2]
A study by the American Exercise Council is said to have shown that an average of 22 per cent body fat in women and 32 per cent body fat in men improves the visibility of these dimples. [4] Further research has shown that the lumbar dimples have an effect on the anatomy of the spinal-pelvic junction. However, no statistically significant ...
Examples of minor anomalies can include curvature of the fifth finger (clinodactyly), a third nipple, tiny indentations of the skin near the ears (preauricular pits), shortness of the fourth metacarpal or metatarsal bones, or dimples over the lower spine (sacral dimples). Some minor anomalies may be clues to more significant internal abnormalities.
The line between the closest bony points of the sacral promontory and the pubic bone next to the symphysis: 10 to 12 cm. [4] Interspinous distance Axial plane: The line between the closest bone points of the ischial spines: 9.5 to 11.5 cm. [6] Pelvic outlet Sagittal pelvic outlet diameter
Bertolotti's syndrome is characterized by sacralization of the lowest lumbar vertebral body and lumbarization of the uppermost sacral segment. It involves a total or partial unilateral or bilateral fusion of the transverse process of the lowest lumbar vertebra to the sacrum, leading to the formation of a transitional 5th lumbar vertebra.
As facial dimple surgeries continue to rise, so do dimple surgeries on the lower back. A sign of a " healthy " body, "Venus dimples" sit right at the base of the spine.
Lumbosacral transitional vertebrae consist of the process of the last lumbar vertebra fusing with the first sacral segment. [1] While only around 10 percent of adults have a spinal abnormality due to genetics, a sixth lumbar vertebra is one of the more common abnormalities. [2] Sacralization of the L5 vertebra is seen at the lower right of the ...