Table 1.

Clinical symptoms and signs

Symptoms or signs	Cases	Percentage (%)
Intervertebral and/or paravertebral tenderness	576	96.3
Unilateral leg and/or lower back pain	540	89.8
Lower extremity pain	156	25.9
Radzikowski sign	538	89.5
Weakness of foot hallux dorsiflexion	336	55.9
Foot drop	93	15.4
Intermittent claudication	237	39.4
Sensory disturbance	378	62.5