Early childhood anomalies of the hip occur at a similar frequency in patients with idiopathic scoliosis and in healthy individuals – questionnaire for parents

Introduction
Improper hip joint development may lead to numerous unfavourable changes in the musculoskeletal system. The aim of this research was to determine how often adolescents with idiopathic scoliosis and their healthy counterparts experienced anomalies of the hip in their infancy period and to examine the correlation between the occurrence of hip anomalies and idiopathic scoliosis.

Material and methods
The research was conducted in medical centres as well as in schools. The parents of adolescents with idiopathic scoliosis and parents of healthy adolescents completed a questionnaire on the basis of their child’s development history included in the medical records book and other medical documentation.

Results
533 questionnaires were taken into consideration, included 145 questionnaires completed by parents of adolescents with scoliosis (121 girls – 13.8 years, SD 1.9; 24 boys – 12.9 years, SD 2.5) and 388 questionnaires from the group of adolescents without scoliosis (194 girls – 13.5 years, SD 2.0; 194 boys – 13.4 years, SD 2.1). No significant differences were noted in the incidence of hip anomalies between the groups of girls and boys with and without scoliosis, no correlations between anomalies of the hip and scoliosis were found (girls χ²=0.840; Cramer V=0.052; p=0.36; boys χ²=1.205; Cramer V=0.074; p=0.27).

Conclusions
Hip anomalies such as hip dysplasia, movement asymmetry or range of motion limitations diagnosed in the infancy period did not correlate with idiopathic scoliosis. Further research aimed at a separate analysis of the influence of hip dysplasia on the occurrence of idiopathic scoliosis should be carried out.