Abstract
Abstract Background Children are vulnerable to congenital and developmental hip disorders. One of the causes of coxitis among children is juvenile idiopathic arthritis (JIA). Existing data on associations between maternal and early childhood exposures highlighted the potential role of prematurity in JIA [1]. The aim of this study was to compare perinatal history in JIA children with coxitis compared with patients with other causes of hip involvement. Methods We conducted a cross-sectional study including children with JIA complicated with coxitis and patients with other causes of hip involvement. We recorded sociodemographic data and the hip disorder. The mode of delivery, the values of the neonatal birth weight as well as the delivery method (vaginal, cesarean (C) section) were retrieved from medical records. We divided the patients into two groups: G1: JIA patients with coxitis and G2: patients with other causes of hip involvement. We compared delivery mode, as well as perinatal outcomes between the two groups. Results The study included 81 patients. There was a male predominance (59.3% males vs 40.7% females) with a sex-ratio of 1.45. The mean age of diagnosis was 9.9 years [1–16]. The mean disease duration was 9 months [0.1–156]. Hip disorders were distributed as follows: Legg-Calvé-Perthes disease (n = 3), epiphysiolysis of the femur head (n = 30), transient synovitis of the hip n = 7, septic hip (n = 10), tumor (n = 4), hip dislocation (n = 8), hip dysplasia (n = 4), juvenile idiopathic arthritis with coxitis (n = 15). The mean birth weight of the children was 3.4 kg [1.3–9]. About half of the patients had a natural delivery (55.6%) and most of them a face presentation (71.6%). A twin pregnancy was reported only in 2.5% of cases. Childbirth complications were reported in 7.4% of cases: umbilical cord prolapse (n = 1), Meconium aspiration syndrome (n = 1), failure to descend (n = 1), acute fetal distress (n = 3). Most of them had a normal growth and psychomotor development (96% and 97% respectively). There was no statistical difference between the two groups regarding delivery mode and fetal presentation before birth (P = 0.07, P = 0.48 respectively). Similarly, weight at birth was similar between JIA children and patients with other hip involvement (P = 0.52). Conclusion Our study showed that maternal and perinatal history did not differ between JIA patients with coxitis and patients with other causes of hip involvement.
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