Objective To study the effect of Botulinum toxin type A (BTX-A) on lower limbs spasticity after stroke. Methods 109 convalescent patients after stroke were randomly divided into treatment group and the control group. All the patients accepted routine treatment and rehabilitation, the treatment group accepted BTX-A injected in spastic muscles in addition. They were assessed with Fugl-Meyer assessment (FMA), modified Ashworth scale (MAS), Berg Balance Scale (BBS) before, 4 weeks and 12 weeks after treatment. Results The scores of MAS, BBS and FMA improved more in the treatment group than in the control group (P<0.05) after treatment. Conclusion Combination of local BTX-A injection can significantly release the lower limbs spasticity, and improve the motor and balance ability for patients after stroke.

Objective To observe the effects of repeated Botulinum toxin type A (BTX-A) injection on lower limb spasticity after stroke.Methods 180 cases with lower limb spasticity after stroke were divided into the treatment group (n=90) and the control group (n=90). The treatment group was treated with BTX-A injection twice in the spastic muscles at interval of 3~6 months, while both the treatment group and the control group accepted the rehabilitation based on the neurodevelopmental therapy. They were assessed with modified Ashworth Scale (MAS), Fugl-Meyer Lower Limb Assessment (FMAL), Berg Balance Scale (BBS), modified Barthel Index (MBI) before each injection, and 3 d, 7 d, 1 month, 3 months after each injection or the same time for the controls. Results There was significant difference in scores of MAS, FMAL, BBS, MBI for the treatment group among before and 3 d, 7 d, 1 month after each injection (P<0.05), but not significant between 2 injections (P<0.05). There was significant difference in scores of all the assessment between the treatment and control group at the same time (P<0.01). Conclusion Repeated intramuscular injection of BTX-A can reduce the spasticity of lower limb after stroke.