 It also raised the possibility of instability and based on this I recommended decompression and posterolateral spinal instrumention; however, intraoperatively, it appeared like there was no abnormal movement of any of the joint segments; however, there was still residual stenosis since the laminectomy that was done previously was partial. 
It also raised the possibility of instability and based on this I recommended decompression and posterolateral spinal instrumention ; however , intraoperatively , it appeared like there was no abnormal movement of any of the joint segments ; however , there was still residual stenosis since the laminectomy that was done previously was partial .