FromFebruary1992toJune1995,selectiveposteriorrhizotomy(SPR)wasperformedin12patientswithspasticityoftheupperlimbsresultedfromcerebralpalsy.Posteriorcervicalnerveroots,fromC5toT1wereseveredinproportionsof40%,50%,60%,50%and35%oftheC5,C6,C7,C8andT1respectively.Abnormalhighmusculartensionintheupperlimbswasfoundtobeefec-tivelyrelievedduringthefolow-up.Thisprocedureisregardedasasatisfactorymethodforrelievingthespasticityoftheupperlimbs.