Sacrum - Sacrum Causes: A - osteoporosis (decrease in Bone density - old age disease) B - herniated disc - emergence of tissue of the gelatinous nucleus of BS into the spinal canal (seen from above) C - spine with osteoarthritis D - Faccetal arthritis (of the vertebral joints) too Spondylarthrosis E - fracture of the vertebra (Spinous process, vertebral body)
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