This operation is to remove protruding disc and decompress lumbar nerves thus relieving sciatica.
This is the commonest fusion I do - it's as simple as possible but not too simple.
Pedicle screws give secure fixation in the spine and give added stability while awaiting fusion.
Sometimes discs prolapse out to the side rather than backwards - this requires a different approach
The coccyx, our residual tail, can be painful after a fall, requiring removal.