Abstract
Some says that: please dont take MRI till 2 years after surgery for disc because there are pitfalls to differentiate new or recurrent hernia from scar formation even by GD+MRI. Surgical Need is a Clinical, not an Imaging Decision. Scar versus treatable entities is a problem, they are: residual or recurrent herniation and spinal canal stenosis.
- By non-contrasted CT there is 43% - 60% rate of diagnosis.
- By contrasted CT rate is 70% - 83%
- By contrasted MRI, diagnostic rate is 96% - 100%
- Arachnoiditis occur in 5% of post-op. patients.
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