Related Experiment Video
Updated: Jul 13, 2026

The Transition to an Anterior-Based Muscle Sparing Approach Improves Early Postoperative Function but is Associated with a Learning Curve
Published on: September 7, 2022
[Primary abductor hip contracture as diagnostic, prognostic and therapeutic problem in child hip pathology]
Insights
Early detection and physical rehabilitation of coxa obliqua in newborns yield excellent results. Prompt treatment prevents complications like hip dysplasia and subluxation, ensuring better outcomes for affected infants.
Area of Science:
- Pediatric Orthopedics
- Developmental Biology
- Congenital Malformations
Context:
- Coxa obliqua is a pediatric hip pathology often linked to intrauterine malposition.
- It can lead to secondary conditions like abductor/adductor contractures, acetabular dysplasia, and subluxation.
- Diagnosis typically occurs between 3-6 months, with a critical period for complications between 6-8 months post-birth.
Purpose:
- To evaluate the efficacy of early detection and physical rehabilitation for coxa obliqua.
- To analyze the outcomes and complications associated with coxa obliqua treatment and non-treatment.
Summary:
- A study of 2,500 newborns identified 22 cases of coxa obliqua (10 per thousand).
- Excellent treatment results (96%) were achieved with early physical rehabilitation.
- Untreated or poorly treated cases resulted in contralateral dysplasia or subluxation.
Impact:
- Highlights the importance of systematic and early detection of coxa obliqua.
- Demonstrates the high success rate of physical rehabilitation in treating this condition.
- Emphasizes the risks of delayed or absent treatment, including persistent hip malformations.
Abstract:
Coxa obliqua represents a special functional entity in the pathology of the child hip. Authors have confirmed the results of S.L. Weissman and B. Strinovic which claimed that the abductor contracture of the hip was a primary congenital condition that developed as a result of intrauterine malposition, leading later to the contralateral adductor contracture. Critical period for the development of complications was between 6 and 8 month after birth, adductor contracture might keep persisting together with the development of acetabular dysplasia, and later on with ipsilateral subluxation. This malformation has usually been diagnosed within 3 and 6 months of age. It could be connected with some other signs of malposition, such as plagiocephaly, torticollis or infantile thoracic C scoliosis. For the diagnosis of coxa obliqua, the examination of hips in the prone position was very important and the ultrasonic and radiological examinations were crucial. The applied treatment used to be exclusively physical rehabilitation. Wide diapering has been contraindicated. In this study, we included 2,500 newborns, 1,300 boys and 1,200 girls (5,000 hips). In 22 cases of coxa obliqua (10 per thousand), the excellent results were obtained in 96% of cases. In two unsuccessfully treated cases, a contralateral dysplasia developed, and in one untreated, subluxation. The authors are advocating a systematic and early detection and treatment of the primary coxa obliqua.
