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Known mild L4/5 disc prolapse - not requiring intervention. Worsening left leg pain and woke with numbness and foot drop. Weak flexors and increased reflexes. Loss of sensation in left L5 distribution. Saddle sensation intact and decent post void volumes.
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1. Large central disc protrusion at L5/S1 which is causing spinal canal and left lateral recess stenosis, compressing the cauda equina.
2. Non-compressive small central disc protrusion at L4/5.
3. Normal vertebral alignment. The bone marrow returns normal signal.
4. Paravertebral structures normal. Normal conus.
Large central disc protrusion at L5/S1 which is compressing the cauda equina.
This young lady underwent emergency decompression of the L5/S1 disc protrusion (leading to cauda equina syndrome) with good post-operative results - return to normal mobility and sensation in left leg.
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