What is saddle anesthesia?
It is tempting to believe that saddle anesthesia results from prolonged horseback riding.
However, this condition describes the sensory loss in the perianal region (saddle) that results from lesions involving the S1 and S2 segments of the spinal cord.
It may be accompanied by sensory loss in the medial aspects of the calf and posterior thigh.
Symmetric saddle anesthesia may result from lesions in the conus medullaris.