Head Circumference Evolution in Children With Positional Plagiocephaly During and After Molding Helmet Therapy.

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

150 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-06-01

Study Completion Date

2026-12-30

Brief Summary

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The aim of this study is to verify the growth of cranial circumference in children treated with helmets for positional skull deformity. The main questions it aims to answer are as follows:

Does the helmet produce a reduction in cranial growth during the period in which it is worn? If the growth of the cranial circumference slows down while the helmet is being worn, does it recover a few months after the end of the treatment? The researchers will study changes in cranial circumference during and after helmet treatment.

The participants received helmet treatment as part of their usual medical care. They will be followed until medical attention is required and data will be collected retrospectively.

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Detailed Description

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Cranial positional deformities in children are a major health problem in France, as in other countries, with a reported incidence of up to 47%. This phenomenon started to widespread in the 90s, but widely diffused in France after 2020, following paediatric recommendations for infants to be placed strictly on their backs in order to avoid sudden infant death syndrome.

Cranial deformation may be asymmetrical (plagiocephaly) or symmetrical (brachycephaly), depending on whether or not a torticollis or a positional preference coexist. The consequences of these deformations are mostly aesthetics, giving the fact that there is no brain compression nor sufferance. In some severe cases, compensational skull growth in the temporo-parietal region, uni- or bilaterally, is noticed immediately on frontal face view, accounting for a disgraceful facial appearance. This aspect is source of parental anxiety and distress, with feeling of guilty and fear for the future of their child.

A part from aesthetic consequences, while in brachycephaly, the symmetrical morphology of the skull justifies the fact that there are no functional consequences, in severe plagiocephaly, a skull base displacement may also be observed, with impact on the frontal region and advancement of the ipsilateral frontal bone, and consequent asymmetrical development of the mandibular and cervical musculoskeletal component.

Intensive stimulation of the child, often with the help of physiotherapists, became essential in order to prevent any deformities.

Despite educational efforts and preventive measures, many cases of positional skull deformity still occur and come to the attention of paediatric neurosurgeons. One of the solutions proposed in the most severe cases is the fitting of a custom-made cranial orthosis (helmet), capable to guide the remodelling of the skull and to reduce the deformity. As with all medical devices, the cranial orthosis is not without its risks and complications. Some of these complications, such as frontal skin burnt at helmet compression points, have already been widely described in the literature.

From personal experience, in patients who have been monitored while wearing the orthosis, it has been frequently observed an inflection of the curve of the cranial perimeter (CP) corresponding to the time the helmet is worn. For this reason, it is essential to measure the CP curve in children who have benefited from a helmet, in order to check that growth has restored some months after the treatment. Anyway, even if CP's reduction is minimal and spontaneously corrects, it is necessary for health care professionals and orthoprosthetist to be aware of this phenomenon, which implies a certain degree of cranial compression during helmet therapy.