ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Spinal compression fractures in surgery. X-rays of sections through the lower back of a 72-year-old patient during surgery to strengthen the vertebral body of the L4 lumbar vertebra (centre-left) that has become weakened due to an array of old compression fractures. Here spacers (top image) are shown, and plates and screws (bottom) are being used to consolidate the weakened vertebra.
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