HISTORY:,  The patient is a 46-year-old right-handed gentleman with a past medical history of a left L5-S1 lumbar microdiskectomy in 1998 with complete resolution of left leg symptoms, who now presents with a four-month history of gradual onset of right-sided low back pain with pain radiating down into his buttock and posterior aspect of his right leg into the ankle. 
HISTORY : , The patient is a 46 - year - old right - handed gentleman with a past medical history of a left L5 - S1 lumbar microdiskectomy in 1998 with complete resolution of left leg symptoms , who now presents with a four - month history of gradual onset of right - sided low back pain with pain radiating down into his buttock and posterior aspect of his right leg into the ankle .