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The degenerative changes are present at multiple levels of the lumbar spine.
The disc bulges noted at the L4-L5 level are causing some pressure (indentation) on the thecal sac (fluid filled sac containing nerve root endings) The left side is affected more than the right --- hence your husband's current symptoms.
The disc extrusion at the L5-S1 level is also causing pressure on the thecal sac and in addition there is evidence of stenosis (narrowing) of the neural foramen (opening through which the nerve roots travel). Again, more prominent nerve root involvement on the left side.
The spondylotic changes refer to arthritic changes in the vertebrae of the lumbar spine and the paraspinal spasm is related to the muscle spasm which usually occurs when the back pain is significant.
Any decision regarding surgery and/or the type of surgery needed is best discussed with his doctor --- if the symptoms are severe enough, surgery (discectomy) may be helpful.
The extent of the nerve involvement is a primary consideration as the longer the nerve is compressed, the greater the risk of nerve damage that surgery may not be able to correct. If your husband's symptoms are causing significant problems with his ability to perform daily activities, surgery may be indicated.
Post again with the specific surgery being recommended and we will try and assist you further.
Best wishes ----
The disc bulges noted at the L4-L5 level are causing some pressure (indentation) on the thecal sac (fluid filled sac containing nerve root endings) The left side is affected more than the right --- hence your husband's current symptoms.
The disc extrusion at the L5-S1 level is also causing pressure on the thecal sac and in addition there is evidence of stenosis (narrowing) of the neural foramen (opening through which the nerve roots travel). Again, more prominent nerve root involvement on the left side.
The spondylotic changes refer to arthritic changes in the vertebrae of the lumbar spine and the paraspinal spasm is related to the muscle spasm which usually occurs when the back pain is significant.
Any decision regarding surgery and/or the type of surgery needed is best discussed with his doctor --- if the symptoms are severe enough, surgery (discectomy) may be helpful.
The extent of the nerve involvement is a primary consideration as the longer the nerve is compressed, the greater the risk of nerve damage that surgery may not be able to correct. If your husband's symptoms are causing significant problems with his ability to perform daily activities, surgery may be indicated.
Post again with the specific surgery being recommended and we will try and assist you further.
Best wishes ----