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Bitemporal depressions after cranioplasty for trigonocephaly: a long-term evaluation of (supra) orbital growth in 92 patients.
J Craniofac Surg. 2008 Jan; 19(1):72-9.JC

Abstract

Long-term results after cranioplasty for trigonocephaly often show bitemporal depressions and a residual hypotelorism. Both findings fuel the perception that the growth of the periorbital region and the forehead as a whole continues to be restricted, even after correction. The aim of this study is to evaluate the growth process of the periorbital region after correction for trigonocephaly in the long term. From 1986 to 2004, 123 patients underwent a cranioplasty for the correction of trigonocephaly. Cephalometric analysis was performed on the radiographs taken at presentation and on the last available radiograph before the age of 6 years (92 posteroanterior and 93 lateral cephalograms). Cephalic landmarks were used to analyze the growth of the forehead: Mo (medial orbital wall), Lo (lateral orbital wall), Losp (crosspoint between lateral orbital wall and sphenoid), and Eu (most lateral point of the skull). As a result of the lack of standardized cephalograms, growth ratios were used instead of absolute numbers. The Eu-Eu growth rate was higher than the Lo-Lo rate, which in its turn surpassed the Losp-Losp rate. An initial undercorrection of the hypotelorism was noted followed by an increased limited autocorrection. A higher Mo-Mo growth rate was noted in the group operated after 1 year of age. Increased interorbital growth accounts for an autocorrection of the residual hypotelorism. The growth rate of the anterotemporal area (Losp) was shown to be the lowest, which could explain the bitemporal depressions so often seen after a frontosupraorbital cranioplasty.

Authors+Show Affiliations

Department of Plastic and Reconstructive Surgery, The Dutch Craniofacial Unit, Erasmus Medical Center, Sophia Children's Hospital, Rotterdam, The Netherlands. j.vandermeulen@erasmusmc.nlNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18216668

Citation

van der Meulen, Jacques J N M., et al. "Bitemporal Depressions After Cranioplasty for Trigonocephaly: a Long-term Evaluation of (supra) Orbital Growth in 92 Patients." The Journal of Craniofacial Surgery, vol. 19, no. 1, 2008, pp. 72-9.
van der Meulen JJ, Nazir PR, Mathijssen IM, et al. Bitemporal depressions after cranioplasty for trigonocephaly: a long-term evaluation of (supra) orbital growth in 92 patients. J Craniofac Surg. 2008;19(1):72-9.
van der Meulen, J. J., Nazir, P. R., Mathijssen, I. M., van Adrichem, L. N., Ongkosuwito, E., Stolk-Liefferink, S. A., & Vaandrager, M. J. (2008). Bitemporal depressions after cranioplasty for trigonocephaly: a long-term evaluation of (supra) orbital growth in 92 patients. The Journal of Craniofacial Surgery, 19(1), 72-9. https://doi.org/10.1097/scs.0b013e31815c8a68
van der Meulen JJ, et al. Bitemporal Depressions After Cranioplasty for Trigonocephaly: a Long-term Evaluation of (supra) Orbital Growth in 92 Patients. J Craniofac Surg. 2008;19(1):72-9. PubMed PMID: 18216668.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Bitemporal depressions after cranioplasty for trigonocephaly: a long-term evaluation of (supra) orbital growth in 92 patients. AU - van der Meulen,Jacques J N M, AU - Nazir,Patricia R N, AU - Mathijssen,Irene M J, AU - van Adrichem,Leon N A, AU - Ongkosuwito,Edwin, AU - Stolk-Liefferink,Sophie A H, AU - Vaandrager,Michiel J M, PY - 2008/1/25/pubmed PY - 2008/4/19/medline PY - 2008/1/25/entrez SP - 72 EP - 9 JF - The Journal of craniofacial surgery JO - J Craniofac Surg VL - 19 IS - 1 N2 - Long-term results after cranioplasty for trigonocephaly often show bitemporal depressions and a residual hypotelorism. Both findings fuel the perception that the growth of the periorbital region and the forehead as a whole continues to be restricted, even after correction. The aim of this study is to evaluate the growth process of the periorbital region after correction for trigonocephaly in the long term. From 1986 to 2004, 123 patients underwent a cranioplasty for the correction of trigonocephaly. Cephalometric analysis was performed on the radiographs taken at presentation and on the last available radiograph before the age of 6 years (92 posteroanterior and 93 lateral cephalograms). Cephalic landmarks were used to analyze the growth of the forehead: Mo (medial orbital wall), Lo (lateral orbital wall), Losp (crosspoint between lateral orbital wall and sphenoid), and Eu (most lateral point of the skull). As a result of the lack of standardized cephalograms, growth ratios were used instead of absolute numbers. The Eu-Eu growth rate was higher than the Lo-Lo rate, which in its turn surpassed the Losp-Losp rate. An initial undercorrection of the hypotelorism was noted followed by an increased limited autocorrection. A higher Mo-Mo growth rate was noted in the group operated after 1 year of age. Increased interorbital growth accounts for an autocorrection of the residual hypotelorism. The growth rate of the anterotemporal area (Losp) was shown to be the lowest, which could explain the bitemporal depressions so often seen after a frontosupraorbital cranioplasty. SN - 1049-2275 UR - https://www.unboundmedicine.com/medline/citation/18216668/Bitemporal_depressions_after_cranioplasty_for_trigonocephaly:_a_long_term_evaluation_of__supra__orbital_growth_in_92_patients_ DB - PRIME DP - Unbound Medicine ER -