The discs lie between the end surfaces of bones that make up the spine. They have a soft jelly like centre called nucleus pulposes which is surrounded by a tough outer ring called annulus fibrosis. These discs mainly act as shock absorbers. The spinal cord and nerves lie close to the back of the discs in the spinal canal.
A disc bulge in MRI is seen in most of the normal people and they are not significant. But this disc bulge needs to be differentiated from a disc prolapse. It is when the soft jelly (nucleus pulposes) tears out thought the hard outer rim (annulus fibrosis) and comes out and lies in the spinal canal, it becomes significant. When this happens in the lower back, this can compress on the nerve roots which go to the legs. This pain is called sciatica. Similar condition can happen in the neck. This causes neck pain with radiating pain to the hands.
Cauda equina syndrome is one of the rare conditions caused by disc prolapse where it compresses all the nerve roots going down to the legs and urinary bladder. This causes urinary problems like difficulty in passing urine etc.
Myelopathy is another severe problem where a large disc compresses on the spinal cord at the neck level. Here patient may express difficulty in walking, holding objects in hand, problems with urination etc. These are the conditions in which surgery needs to be considered at the earliest as longer the problem recovery becomes difficult.
MRI showing far lateral disc prolapse
Post operative MRI showing complete removal of disc
Surgery is not required in most of the cases. Often the pain subsides with rest and pain killers. If there is no relief then a short period of treatment in hospital as inpatient usually helps. Surgery is required for those who do not respond.
|Disc prolapse in the neck causing severe compression of the exiting root.|
Surgery helps to relieve the leg pain or arm pain. Usually it can be done as a day care surgery or a day of admission. Minimally invasive technique is used, which helps faster recovery with early return to work. In most of the cases no restriction of activity is required. No need for belt or other assistive devices will be needed. There are different techniques used like endoscopic discectomy, micro discectomy, mini open surgery and conventional discectomy. But the type of technique depends on the type of disc prolapse and the patient profile.