Purpose: Craniosynostosis of the coronal, metopic and frontosphenoidal sutures results in deformity of the forehead. This may cause both functional and psychological difficulties for patient and parent. We describe a novel surgical technique, the 'Christmas tree foreheadplasty', used in combination with a supraorbital bandeau to achieve fronto-orbital remodelling.
Methods: Between November 2008 and September 2011, 32 patients with craniosynostosis underwent fronto-orbital remodelling with a supraorbital bandeau in combination with Christmas tree foreheadplasty. Indications for surgery, age at surgery, blood transfusion requirements, length of hospital stay and perioperative complications were assessed. A 'blinded', independent reviewer, age-matched controlled, panel photograph study was also undertaken to review results of the surgery. A parental satisfaction survey by telephone questionnaire was undertaken.
Results: Mean age at surgery was 16 months. Average hospital stay was 3 days. Mean follow up time to this report was 19.5 months. Indications for the procedure included unicoronal, frontosphenoidal, metopic and bicoronal synostosis. Thirty of the 32 patients required a blood transfusion. One patient has required revision surgery following extrusion of prosthetic fixation plate. Surgical outcome measured by 'blinded' independent reviewers indicated that a significantly different preoperative score from normal was rendered to no significant difference from age-matched normal controls postoperatively. Parental satisfaction score of forehead appearance was significantly improved by the technique.
Conclusion: The Christmas tree foreheadplasty is a commendable and reproducible technique for forehead remodelling in combination with supraorbital bandeau and is now used more widely for forehead reconstruction for congenital cases.
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http://dx.doi.org/10.1007/s00381-012-1806-9 | DOI Listing |
Am J Clin Dermatol
January 2025
Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
Pityriasis rosea (PR) is a prevalent dermatological condition characterized by a distinctive herald patch, followed by secondary eruptions, often forming a "Christmas tree" pattern on the trunk. Despite its recognizable clinical presentation, the etiology of PR remains uncertain, with hypotheses pointing to both infectious and noninfectious origins. Human herpesviruses (HHV) 6 and 7 have been implicated, with evidence suggesting viral reactivation as a potential trigger.
View Article and Find Full Text PDFGenetica
December 2024
Facultad de Agronomía, Universidad de San Carlos de Guatemala, Guatemala City, 01012, Guatemala.
Abies guatemalensis Rehder, an endangered conifer endemic to Central American highlands, is ecologically vital in upper montane forests. It faces threats from habitat fragmentation, unsustainable logging, and illegal Christmas tree harvesting. While previous genetic studies on mature trees from eighteen populations showed high within-population diversity and limited among-population differentiation, the genetic impact of recent anthropogenic pressures on younger generations has yet to be discovered.
View Article and Find Full Text PDFPLoS Biol
December 2024
Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Rennes, France.
Public engagement with reproducibility is crucial for fostering trust in science. This Community Page outlines, through the example of baking Christmas tree meringues, how scientists can effectively engage and educate the public about the importance of reproducibility in research.
View Article and Find Full Text PDFTrends Plant Sci
November 2024
Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, Linnaeus väg 6, 901 87 Umeå, Sweden. Electronic address:
Boreal conifers - the 'Christmas trees' - maintain their green needles over the winter by retaining their chlorophyll. These conifers face the toughest challenge in February and March, when subzero temperatures coincide with high solar radiation. To balance the light energy they harvest with the light energy they utilise, conifers deploy various mechanisms in parallel.
View Article and Find Full Text PDFIndoor Environ
March 2024
Engineering Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
Every year in the United States conifers are purchased to serve as Christmas trees in homes where they emit volatile organic compounds (VOCs) to the indoor environment. Although many studies have measured the ecosystem-level emissions of VOCs from conifers outdoors (characterizing monoterpene, isoprene, and aldehyde emissions), little is known about VOC emission rates once a conifer is brought indoors. Using a proton transfer reaction-mass spectrometer we characterized the VOCs emitted from a freshly cut Douglas Fir for 17 days in an environmentally controlled chamber.
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