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Updated: Apr 19, 2026
Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
Published on: November 4, 2025
The importance of timing in optimizing cranial vault remodeling in syndromic craniosynostosis
Alan F Utria1, Gerhard S Mundinger, Justin L Bellamy
1Baltimore, Md. From the Departments of Plastic and Reconstructive Surgery and Neurosurgery, The Johns Hopkins Hospital; and the Department of Oral-Maxillofacial Surgery, University of Maryland Medical Center.
Insights
The ideal age for cranial vault remodeling in syndromic craniosynostosis is 6 to 9 months. Surgery before 6 months increases major reoperation risk, while surgery after 9 months increases minor revision risk.
Area of Science:
- Craniofacial surgery
- Pediatric plastic surgery
- Neurosurgery
Background:
- Syndromic craniosynostosis requires surgical intervention, often cranial vault remodeling.
- Relapse and need for reoperation are significant concerns in these patients.
- The impact of surgical timing on outcomes is not fully elucidated.
Purpose of the Study:
- To investigate the relationship between the age at cranial vault remodeling and the rate of reoperation in syndromic craniosynostosis.
- To identify optimal surgical timing to minimize revision surgeries.
Main Methods:
- Retrospective review of 52 patients with syndromic craniosynostosis treated between 1990 and 2013.
- Procedures were categorized by Whitaker criteria (I-IV) based on reoperation necessity.
- Multivariable logistic regression analyzed the association between age at surgery (grouped <6, 6-9, >9 months) and reoperation risk.
Main Results:
- Patients operated on younger than 6 months had 4.10 times higher odds of requiring major reoperation (Whitaker III/IV).
- Patients operated on older than 9 months had 13.2 times higher odds of requiring minor revisions (Whitaker II).
- The 6 to 9 months age group showed the lowest risk for reoperation.
Conclusions:
- Surgical timing is a critical factor influencing outcomes in syndromic craniosynostosis repair.
- For non-urgent cases, the optimal window for cranial vault remodeling appears to be 6 to 9 months of age.
- This age range may reduce the likelihood of both major and minor reoperations.
Background:
The purpose of this study was to gain insight into the impact of age at repair on relapse rates in syndromic patients undergoing cranial vault remodeling.
Methods:
Retrospective chart review was performed for patients surgically treated for syndromic craniosynostosis from 1990 to 2013. Surgical procedures were assigned a Whitaker category based on need for reoperation as follows: no additional surgery required (category I); minor contouring revisions required (II); major revisions required (III); or failure of original surgery (IV). Age at surgery was grouped as follows: younger than 6 months; aged 6 to 9 months; and older than 9 months. Multivariable logistic regression analysis was performed to determine the relationship between age at surgery and need for reoperation by Whitaker category.
Results:
Fifty-two patients undergoing a total of 65 planned cranial vault remodeling procedures were included. Multivariate logistic regression analysis revealed that patients younger than 6 months at the time of primary surgery carried a 4.10 greater odds (95 percent CI, 1.31 to 12.87; p = 0.016) of requiring a subsequent major reoperation, and being older than 9 months of age carried a 13.2 greater odds (95 percent CI, 1.39 to 124.30; p = 0.024) of requiring a subsequent minor revision.
Conclusions:
Timing of surgery is an important factor to consider when planning vault remodeling in syndromic craniosynostosis. Based on our institution's experience, when there is no concern for elevated intracranial pressure the ideal operative window for these procedures in the syndromic population appears to be 6 to 9 months of age.
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