My uncle Ron had a spinal fusion surgery months ago. Since then, he has a horrible time having a bowel movement. I believe this is do to no paristolic motion do to nerve damage. Prescription laxitives and diet changes do absolutly nothing. He appears to be 9 months pregnant because he is so "full". His doctors dont know what to tell him, including specialist. Colonoscopy's appear normal. If anyone has any known medications that can help please reply.