Spastic Paraplegia 20, Autosomal Recessive, also known as troyer syndrome, is related to spastic paraplegia 7, autosomal recessive and spastic paraplegia 63, autosomal recessive, and has symptoms including leg cramps, pain in lower limb and cerebellar signs. An important gene associated with Spastic Paraplegia 20, Autosomal Recessive is SPART (Spartin). The drugs Acetylcholine and Cholinergic Agents have been mentioned in the context of this disorder. Affiliated tissues include spinal cord and brain, and related phenotypes are spasticity and hyperreflexia