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Pre- and post-operative images of a patient who received UPSFC. A – The preoperative image of CT scan for huge disc herniation at right side. B – Preoperative T2 WI MRI scanning for protrusion of intervertebral disc at L5/S1. C – X-ray image of lateral projection detected 1 week after operation. No alteration in the position of nail stick and cage was detected. D – X-ray image of lateral projection detected 1 year after operation
