Spastic paraplegia 4 (SPG4; also referred to as SPAST-HSP) is characterised by insidiously progressive bilateral reduce-limb gait spasticity. In excess of 50% of impacted folks have some weak point while in the legs and impaired vibration feeling with the ankles.????? ??? ????? ???? ????.????? ???? ??? ??? ??? ???? ?????.Hypokalemic periodic paraly