 An x-ray was taken to confirm the level of C5-C6 and C6-C7.,The longus colli muscle was dissected free bilaterally from C5 to C7 using blunt dissection. 
An x - ray was taken to confirm the level of C5 - C6 and C6 - C7.,The longus colli muscle was dissected free bilaterally from C5 to C7 using blunt dissection .