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Intradural disc herniation - report of two cases.

Intradural disc herniation is a very rare condition, which occurs in up to 0.3% cases of all disc herniations. It mostly develops at L4-L5 level, which is caused by the presence of strong adhesions between the posterior longitudinal ligament and dura mater. These rare cases are included in the classifications, however, they are associated with diagnostic difficulties, both in physical examination and in the image visible in magnetic resonance.


REPORT OF 2 CASES
The presented patients were treated in the Neuroortopedic Department within the last two years. Despite previous examinations, the final diagnosis of intradural disc herniation occurred only during the surgery.


CONCLUSIONS
Rarely occurring hernias of the intervertebral disc require increased vigilance among surgeon's spine physicians. Preoperative diagnosis of intradural lesion would make it possible to develop a better surgical strategy.