XXXX after microdiscectomy for lumbar disc herniation.

@entity1 @entity51 @entity2003 @entity425
We have studied, prospectively, 116 @entity1 with @entity51 associated with herniation of a lumbar disc who underwent microdiscectomy. They were studied during the first six months and at a mean of 6.4 years after surgery. Before operation, @entity425 was mild (grade 4) in 67% of @entity1 , severe (grade 3) in 21% and very severe (grade 2 or 1) in 12%. The muscle which most frequently had severe or very severe @entity425 was @entity2003 longus, followed in order by triceps surae, extensor digitorum communis, tibialis anterior, and others. At the latest follow-up examination, 76% of @entity1 had complete recovery of strength. Persistent @entity425 was found in 16% of @entity1 who had had a mild preoperative deficit and in 39% of those with severe or very severe @entity425 . Muscle strength was graded 4 in all @entity1 with persistent @entity425 , except for four with a very severe preoperative deficit affecting the L5 or S1 nerve root. They showed no significant recovery. Excluding this last group, the degree of recovery of motor function was inversely related to the preoperative severity and duration of @entity425 . The @entity1 ' subjective functional capacity was not directly related to the degree of recovery except in those with persistent severe or very severe deficit.
