Many observers have noted that the most common cause of a failed back syndrome is caused from recurrent disc herniation at the same level originally operated. A rapid removal in a second surgery can be curative. The clinical picture of a recurrent disc herniation usually involves a significant pain-free interval. However, physical findings may be lacking, and a good history is necessary. The time period for the emergence of new symptoms can be short or long. Diagnostic signs such as the straight leg raise test may be negative even if real pathology is present. The presence of a positive myelogram may represent a new disc herniation, but can also be indicative of a post operative scarring situation simply mimicking a new disc. Newer MRI imaging techniques have clarified this dilemma somewhat. Conversely, a recurrent disc can be difficult to detect in the presence of post op scarring. Myelography is inadequate to completely evaluate the patient for recurrent disc disease, and CT or MRI scanning is necessary. Measurement of tissue density can be helpful.Even though the complications of laminectomy for disc herniation can be significant, a recent series of studies involving thousands of patients published under auspices of Dartmouth Medical School concluded at four-year follow-up that those who underwent surgery for a lumbar disc herniation achieved greater improvement than nonoperatively treated patients in all primary and secondary outcomes except work status. Spinal stenosis
Spinal stenosis can be a late complication after laminectomy for disc herniation or when surgery was performed for the primary pathologic condition of spinal stenosis.
Nervous may refer to:

nervousness
Nervous system, a network of cells in an animals body that coordinates movement and the senses
Nervous tissue, the cells of the nervous system that work in aggregate to transmit signals

Music
"Nervous" (Gene Summers song), 1958; covered by several performers
"Nervous" (Gavin James song), 2016
"Nervous" (Shawn Mendes song), 2018
"Nervous", a song by K.Flay from Solutions, 2019
"Nervous", a song by L Devine, 2018
"Nervous", a song by Nick Jonas from Spaceman, 2021
Nervous Records, a UK record label
Nervous Records (US), a US record label

See also
"Nervousness", a song by the Gigolo Aunts from Tales from the Vinegar Side
Nervous Norvus (1912–1968), the performing name of Jimmy Drake
Nervous shark, a species of requiem shark
All pages with titles beginning with Nervous