The Features Of Spinal Proprioception And Functional Movement In Adolescent Idiopathic Scoliosis

Background: Adolescent idiopathic scoliosis(AIS)is a special scoliosis with unknown pathogenesis.Abnormal proprioceptive system may be an important factor in the pathogenesis.However,the spinal proprioceptive of the patients has not been described in detail.A large number of previous studies have shown that AIS may have neuromuscular system and balance disorders.Abnormal function may increase the injury risk during daily or therapeutic activities.Purpose: The objective of this study was to explore whether there were abnormal proprioceptive function and basic motion patterns in AIS by compare the features of spinal position sense and basic motor patterns of AIS with controls.Methods:Thirty-five adolescents with idiopathic scoliosis and 13 healthy adolescents of the same age were divided into two groups: AIS group and control group.All subjects were evaluated by the identical spine active reproduction test and functional movement screen procedures.Use mean absolute error(MAE)and variable error(VE)reflect spinal proprioception and functional movement original and final scores reflect motor pattern.Independent t-test and nonparametric test were used to compare the differences between groups and linear correlation analysis was used to analyze the correlation between the Cobb' angle and the duration of the disease with MAE and the FMS scores.Results: 1)cervical proprioception results: the reduction ability in the right flexion and right rotation direction of the group was weaker than that in the control(p < 0.05).There was significant asymmetry in the reduction ability in the direction of lateral flexion and rotation(p < 0.05).2)trunk proprioception results: the reduction ability in flexion and right flexion of the group was weaker than that in the control group(p < 0.05),there was significant asymmetry in the reduction ability of AIS group in the direction of lateral flexion and rotation(p < 0.05),except left flexion,the variation error of active reduction of trunk in other directions was significantly different from that of control(p < 0.05);3)FMS scores: the stable push-ups score of AIS was significantly different from that of control(p < 0.05),and that in other items,the patients had different levels of dysfunction,but the original score was not different from that of the control;4)Correlation analysis showed that there was no significant linear correlation between Cobb's angle with final scores of functional movement screen and spinal proprioception(?<0.4,p < 0.05).Conclusion:1)AIS had weaker spinal position sense than healthy adolescents,and AIS's spinal position sense had significant asymmetry on the frontal plane and horizontal plane.2)AIS had compensatory movement and poor movement function in completing basic motion mode.Stable push-ups of trunk was the weakest movement of AIS.3)FMS scores and spinal position sense in AIS were not correlated with the Cobb's angle.It is suggested that AIS should be evaluated with proprioception function test and functional movement screen.