 We reviewed the surgery itself as well as risks including infection and blood vessels or nerves, leakage of spinal fluid, weakness or paralysis, failure of the pain to improve, possible worsening of the pain, failure of the neurologic symptoms to improve, possible worsening of the neurologic symptoms, and possible need for further surgery including re-revision and/or removal. 
We reviewed the surgery itself as well as risks including infection and blood vessels or nerves , leakage of spinal fluid , weakness or paralysis , failure of the pain to improve , possible worsening of the pain , failure of the neurologic symptoms to improve , possible worsening of the neurologic symptoms , and possible need for further surgery including re - revision and/or removal .