痉挛型脑瘫58例行L_2—S_1节段的选择性脊神经后根切断术,术后患者的下肢痉挛均巳解除.通过术前术后足畸形的对比,发现SPR术能使多数痉挛所致足畸形在术后得以完全矫正,并减轻痉挛与软组织挛缩同时存在的足畸形的严重程度,预防软组织挛缩,避免足畸形加重,而对跟骨畸形影响较小.本组病例中扁平外翻足畸形多见,在治疗中是一个值得重视的问题. Fifty-eight patients with spastic cerebral palsy underwent selective posterior rhizotomy of L_2-S_1 segment, and all patients had extremity spasms relieved.Comparison of preoperative and postoperative foot deformities showed that SPR could make most of the spasm- Deformity in the postoperative to be completely corrected, and to reduce the spasm and soft tissue contracture exist in the foot deformity severity, prevention of soft tissue contracture, to avoid foot deformity increased, while the less significant impact on calcaneal deformity in this group of cases of flat valgus foot deformity More common in the treatment is a problem worth attention.