Smyth and Wright (1958) used intraoperatively placed nylon threads to mechanically stimulate lumbar nerve roots, the dura mater, and spinal ligaments in 37 patients postoperatively — directly testing whether disc pressure on a nerve root is the true cause of sciatica.
This classic experimental study helped establish the scientific foundation for understanding disc pathology as a source of sciatica. It represents early research that informed the modern approach to diagnosing and treating disc-related radicular symptoms.
Smyth and Wright (1958) used intraoperatively placed nylon threads to mechanically stimulate lumbar nerve roots, the dura mater, and spinal ligaments in 37 patients postoperatively — directly testing whether disc pressure on a nerve root is the true cause of sciatica.
This classic experimental study helped establish the scientific foundation for understanding disc pathology as a source of sciatica. It represents early research that informed the modern approach to diagnosing and treating disc-related radicular symptoms.