Abstract: Objective To analyze the relationship between the ranks of articulatio coxae subluxation diagnosed by X-ray imaging and related factors.Methods The ranks of X-ray imaging and the severity of subluxation of joint,and the relationship with the severity of cerebral palsy(CP)and ages in 21 CP children were analyzed.Results 15 of the 21 CP children(71.4%)had moderate or severity cerebral palsy.Accompany with growing up,it became more severity.The number of children over 4 years old and with articulatio coxae subluxation was 3 times than younger.Conclusion The severity of articulatio coxae subluxation is related with the severity of CP and age.

Key words: articulatio coxae subluxation, X-ray, cerebral palsy