Towards consensus on the treatment of congenital craniofacial conditions: the discussion section of a doctoral thesis
DOI:
https://doi.org/10.2340/jphs.v61.45985Keywords:
Cleft lip, cleft palate, treacher collins syndrome, mandibulofacial dysostosis, Nager syndrome, Miller syndrome, Genée-Wiedemann syndrome, acrofacial dysostosis, facial dysostosis, EuropeAbstract
Background: Congenital craniofacial conditions are a diverse group of rare and complex disorders, leading to significant functional and psychosocial challenges. Their rarity and variability hinder research and clinical standardisation, resulting in substantial practice variation across centres. International collaboration and high-quality evidence are therefore essential to improve and converge care for affected individuals. This article presents the discussion section of a doctoral thesis that addressed these challenges through multiple methodological approaches, the majority of which were conducted within the European Reference Network for Rare and Complex Craniofacial Conditions (ERN CRANIO).
Methods: The studies combined systematic reviews, multicentre cohort analyses, expert consensus and registry development to advance understanding and care for three conditions: unilateral cleft lip and palate (UCLP), Treacher Collins syndrome and Miller syndrome.
Results: The thesis provides evidence supporting early hard palate closure in UCLP, contributing to improved speech outcomes and fewer oronasal fistulas without increasing surgical burden. For facial dysostosis syndromes, the European clinical consensus statement and the establishment of the first international registry provide a foundation for more standardised multidisciplinary care and collaborative research. The systematic review on Miller syndrome clarifies its phenotypic spectrum and aids differential diagnosis with other syndromes.
Conclusions: Through its comprehensive and collaborative approach, this thesis promotes the convergence of care for congenital craniofacial conditions in Europe. It highlights the importance of methodological rigour, standardisation and international collaboration to achieve evidence-based and equitable care for these rare and complex disorders.
Downloads
References
Singh V, Moss T. Psychological impact of visible differences in patients with congenital craniofacial anomalies. Prog Orthod. 2015;16:5. DOI: https://doi.org/10.1186/s40510-015-0078-9
Warschausky S, Kay J, Buchman S, et al. Health-related quality of life in children with craniofacial anomalies. Plast Reconstr Surg. 2002;110:409–414. DOI: https://doi.org/10.1097/00006534-200208000-00004
Elzen M, Versnel S, Hovius S, et al. Adults with congenital or acquired facial disfigurement: impact of appearance on social functioning. J Craniomaxillofac Surg. 2012;40(8):777–782. DOI: https://doi.org/10.1016/j.jcms.2012.02.010
Shaw WC, Semb G, Nelson P, et al. The Eurocleft Project 1996–2000: overview. J Craniomaxillofac Surg. 2001;29(3):131–140. DOI: https://doi.org/10.1054/jcms.2001.0217
Towards consensus on the treatment of congenital craniofacial conditions [Internet]. [cited date 30-03-2026] Doctoral thesis, Rotterdam. Available from: https://pure.eur.nl/en/publications/towards-consensus-on-the-treatment-of-congenital-craniofacial-con/
van Roey VL, Mink van der Molen AB, Mathijssen IMJ, et al. Between unity and disparity: current treatment protocols for common orofacial clefts in European Expert Centres. Int J Oral Maxillofac Surg. 2025;54(6):519–528. DOI: https://doi.org/10.1016/j.ijom.2024.12.001
van Roey VL, Ombashi S, Pleumeekers MM, et al. Comparison of two surgical protocols for the treatment of unilateral cleft lip and palate: a multidisciplinary systematic review and meta-analysis. Int J Oral Maxillofac Surg. 2024;53(10):803–820. DOI: https://doi.org/10.1016/j.ijom.2024.04.003
van Roey VL, Versnel SL, Heliövaara A, et al. Comparison of a third surgical protocol for the treatment of unilateral cleft lip and palate: a multidisciplinary systematic review and meta-analysis. Int J Oral Maxillofac Surg. 2025;54(11):1043–1070. DOI: https://doi.org/10.1016/j.ijom.2025.04.008
van Roey VL, Hofman L, van der Goes PAJ, et al. Long-term speech outcomes in unilateral cleft lip and palate: a comparative study of early and delayed hard palate closure. J Craniofac Surg. 2025;36(8):2823–2828. DOI: https://doi.org/10.1097/SCS.0000000000011975
van Roey VL, Rezaee A, Heemskerk SCM, et al. Differences in the surgical and financial burden of four protocols for unilateral cleft lip and palate. Int J Oral Maxillofac Surg. 2025;54(8):706–714. DOI: https://doi.org/10.1016/j.ijom.2025.03.001
Van Roey VL, Irvine WFE, Åsten PM, et al. Optimal diagnostic and treatment practices for facial dysostosis syndromes: a clinical consensus statement among European experts. J Craniofac Surg. 2024;35(5):1315–1324. DOI: https://doi.org/10.1097/SCS.0000000000010280
van Roey VL, Ombashi S, Mathijssen IMJ, et al. The development of a European Registry for facial dysostosis syndromes: a Delphi-guided approach. J Craniofac Surg. 2025;36(8):2712–2716. DOI: https://doi.org/10.1097/SCS.0000000000011695
van Roey VL, Ombashi S, Kaymaz I, et al. Unveiling the phenotypic spectrum of miller syndrome: a systematic review. J Craniofac Surg. 2025;36(8):e1243–e1247. DOI: https://doi.org/10.1097/SCS.0000000000011501
Mink van der Molen AB, van Breugel JMM, Janssen NG, et al. Clinical practice guidelines on the treatment of patients with cleft lip, alveolus, and palate: an executive summary. J Clin Med. 2021;10(21):4813. DOI: https://doi.org/10.3390/jcm10214813
Geirdal AO, Øverland B, Heimdal K, et al. Association between obstructive sleep apnea and health-related quality of life in individuals affected with Treacher Collins syndrome. Eur Arch Otorhinolaryngol. 2013;270(11):2879–2884. DOI: https://doi.org/10.1007/s00405-013-2409-0
Hofman L, van Dongen JA, van Rees RCM, et al. Speech correcting surgery after primary palatoplasty: a systematic literature review and meta-analysis. Clin Oral Investig. 2023;28(1):58. DOI: https://doi.org/10.1007/s00784-023-05391-7
Butterworth S, Fitzsimons KJ, Medina J, et al. Investigating the impact of patient-related factors on speech outcomes at 5 years of age in children with a cleft palate. Cleft Palate Craniofac J. 2023;60(12):1578–1590. DOI: https://doi.org/10.1177/10556656221110094
Willadsen E, Lohmander A, Persson C, et al. Scandcleft randomised trials of primary surgery for unilateral cleft lip and palate: 5. Speech outcomes in 5-year-olds – consonant proficiency and errors. J Plast Surg Hand Surg. 2017;51(1):38–51. DOI: https://doi.org/10.1080/2000656X.2016.1254647
Ben-Ari A, Peri T, Margalit D, et al. Surgical procedures and pediatric medical traumatic stress (PMTS) syndrome: assessment and future directions. J Pediatr Surg. 2018;53(8):1526–1531. DOI: https://doi.org/10.1016/j.jpedsurg.2017.10.043
Ben-Ari A, Margalit D, Udassin R, et al. Traumatic stress among school-aged pediatric surgery patients and their parents. Eur J Pediatr Surg. 2019;29(5):437–442. DOI: https://doi.org/10.1055/s-0038-1660449
Turgoose DP, Kerr S, De Coppi P, et al. Prevalence of traumatic psychological stress reactions in children and parents following paediatric surgery: a systematic review and meta-analysis. BMJ Paediatr Open. 2021;5(1):e001147. DOI: https://doi.org/10.1136/bmjpo-2021-001147
Sorin A, McCarthy JG, Bernstein JM. Predicting decannulation outcomes after distraction osteogenesis for syndromic micrognathia. Laryngoscope. 2004;114(10):1815–1821. DOI: https://doi.org/10.1097/00005537-200410000-00026
Ibrahim A, Suttie M, Bulstrode NW, et al. Combined soft and skeletal tissue modelling of normal and dysmorphic midface postnatal development. J Craniomaxillofac Surg. 2016;44(11):1777–1785. DOI: https://doi.org/10.1016/j.jcms.2016.08.020
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2026 Victor van Roey, Irene M.J. Mathijssen, Aebele B. Mink van der Molen, Sarah L. Versnel

This work is licensed under a Creative Commons Attribution 4.0 International License.
Acta Chirurgica Scandinavica Society owns the copyright for all material published until Volume 57 (2023) unless otherwise specified. As from 2024 all published articles, unless otherwise specified, are published under CC-BY licences, allowing third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material, with the condition of proper attribution to the original work.
