Spastic paraplegia 4 (SPG4; also known as SPAST-HSP) is characterised by insidiously progressive bilateral decreased-limb gait spasticity. A lot more than fifty% of impacted individuals have some weak point while in the legs and impaired vibration sense with the ankles.???? ??? ? ?? ??: ??? ??? ???? ???? ??? ? ????.A chromosomal abnormality consist