Tolga Tolunay1, Hüseyin Emre Tepedelenlioğlu2, Ayşin Hanlı Şahin3, Şefik Murat Arıkan1, Hakan Atalar1, Serkan Savlık4, Cemil Yıldız5

1Department of Orthopedics and Traumatology, Gazi University Faculty of Medicine, Ankara, Türkiye
2Department of Orthopedics and Traumatology, Ankara Etlik City Hospital, Ankara, Türkiye
3Department of Pediatrics, Abdurrahman Yurtaslan Training and Research Hospital, Ankara, Türkiye
4Department of Orthopedics and Traumatology, Gediz State Hospital, Kütahya, Türkiye
5Department of Orthopedics and Traumatology, Gülhane Training and Research Hospital, Ankara, Türkiye

Keywords: Dysplasia, fontanel, hip, ossification, skull.


Objectives: This study aims to compare cranial bone ossification between patients with developmental dysplasia of the hip (DDH) and healthy individuals.

Patients and methods: Between September 2021 and April 2022, a total of 60 healthy female individuals (median age: 24.5 months; range, 18 to 36 months) and 56 female DDH patients (median age: 23 months; range, 18 to 35 months) were included. Age, head circumference, weight, height, and patency of the anterior fontanel were measured in groups. Percentiles were classified as very low, low, normal, high and very high. All patients were female and those with abnormal thyroid function test, vitamin D, calcium, phosphate and alkaline phosphatase values were not included in the study. For those diagnosed with DDH, they were included in the group regardless of the type of treatment.

Results: No statistically significant difference was found between the groups in terms of age and weight (p>0.05). The very low and very high head circumferences were more frequent, and the normal head circumferences were less frequent in the DDH group (p<0.05). There was no significant difference between groups in terms of fontanel closure (p>0.05). In open fontanels, no significant difference was found in both groups in terms of age (p>0.05).

Conclusion: Our study results showed no significant difference between the fontanel ossifications of children with and without DDH; however, we found that the ossification of the skull bones of children with DDH was different compared to healthy children.

Citation: Tolunay T, Tepedelenlioğlu HE, Hanlı Şahin A, Arıkan ŞM, Atalar H, Savlık S, et al. Does cranial bone ossification differ in children with developmental dysplasia of the hip?. Jt Dis Relat Surg 2024;35(2):354-360. doi: 10.52312/jdrs.2024.1479.

Ethics Committee Approval

The study protocol was approved by the Ankara City Hospital Ethics Committee (date: 30.06.2021, no: E2-21-641). The study was conducted in accordance with the principles of the Declaration of Helsinki.

Author Contributions

Idea/concept: T.T., H.A.; Design: C.Y., H.A.; Control/supervision: Ş.M.A., H.A., T.T., C,Y.; Data collection and/or processing: H.E.T., A.Ş.H.; Analysis and/or interpretation: H.E.T.; Literature review: H.E.T., Ş.M.A.; Writing the article: H.E.T.; Critical review: T.T., Ş.M.A., H.A.; References and fundings: H.E.T, S.S.; Materials: H.E.T, H.A., A.Ş.H.; Other: S.S.

Conflict of Interest

The authors declared no conflicts of interest with respect to the authorship and/or publication of this article.

Financial Disclosure

The authors received no financial support for the research and/or authorship of this article.

Data Sharing Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.