Bone spur also called an osteophyte, it is an outgrowth or ridge that forms on a bone. Sclerosis is again hardening of the pubic symphysis a part of it or complete due to chronic inflammation due to mechanical, injury or tumor related. See a related post: http://www.medhelp.org/posts/Orthopedics/bone-spur-and-sclerosis-of-pubic-symphysis/show/1049730
Percocet (oxycodone with paracetamol/acetaminophen) tablets can be continued to relieve the pain.
The nerve involvement may or may not be connected to your primary problem. You need to check if you have any other spinal problems by an MRI. Lumbar vertebra involvement may involve the nerve supply to the lower limbs.
You have to follow near an expert orthopedician who is specialized in back problems and also if required a neurologist consultancy will help.