Quantitative assessment and localization of the hollowing of the temple after craniectomy and cranioplasty-The frontozygomatic shadow.

<h4>Background</h4>After cranioplasty, in many cases a not negligible soft tissue defect remains in the temporozygomatical area, also referred to as a hollowing defect of the temple.<h4>Objective</h4>To assess the precise localization and volume of the hollowing defect, to op...

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Autores principales:	Michael Kosterhon, Eva Ruegg, Malte Ottenhausen, Anne Kühn, Florian Ringel, Max Jägersberg
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/91cec8836cd04cb09ef7c73f6c91c5c8
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spelling	oai:doaj.org-article:91cec8836cd04cb09ef7c73f6c91c5c82021-12-02T20:16:46ZQuantitative assessment and localization of the hollowing of the temple after craniectomy and cranioplasty-The frontozygomatic shadow.1932-620310.1371/journal.pone.0258776https://doaj.org/article/91cec8836cd04cb09ef7c73f6c91c5c82021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0258776https://doaj.org/toc/1932-6203<h4>Background</h4>After cranioplasty, in many cases a not negligible soft tissue defect remains in the temporozygomatical area, also referred to as a hollowing defect of the temple.<h4>Objective</h4>To assess the precise localization and volume of the hollowing defect, to optimize future cranioplasties.<h4>Methods</h4>CT data of patients who received craniectomy and conventional CAD cranioplasty in our institution between 2012 and 2018 were analyzed. CT datasets prior to craniectomy and after cranioplasty were subtracted to quantify the volume and localization of the defect.<h4>Results</h4>Out of 91 patients, 21 had suitable datasets. Five cases had good cosmetic results with no defect visible, 16 patients had an apparent hollowing defect. Their average defect volume was 5.0 cm3 ± 4.5 cm3. The defect localizations were in the area behind the zygomatic process and just below the superior temporal line, covering an area of app. 3x3 cm2. Surgical attempts of temporal muscle restoration were more often found in reports of good results (p<0.01), but also in 50% of reports, whose surgeries resulted in hollowing of the temple. Mean time between the two surgeries was 112 ± 43 days. No significant differences between patients with and without hollowing defect were detected regarding time between the two surgeries, age or performing surgeon.<h4>Conclusion</h4>This work supplies evidence for the indication of a surgical corrective during cranioplasty in the small but cosmetically relevant area of the "frontozygomatic shadow". Based on our 3D data analysis, future focused surgical strategies may obtain better aesthetical results here.Michael KosterhonEva RueggMalte OttenhausenAnne KühnFlorian RingelMax JägersbergPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 10, p e0258776 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Michael Kosterhon Eva Ruegg Malte Ottenhausen Anne Kühn Florian Ringel Max Jägersberg Quantitative assessment and localization of the hollowing of the temple after craniectomy and cranioplasty-The frontozygomatic shadow.
description	<h4>Background</h4>After cranioplasty, in many cases a not negligible soft tissue defect remains in the temporozygomatical area, also referred to as a hollowing defect of the temple.<h4>Objective</h4>To assess the precise localization and volume of the hollowing defect, to optimize future cranioplasties.<h4>Methods</h4>CT data of patients who received craniectomy and conventional CAD cranioplasty in our institution between 2012 and 2018 were analyzed. CT datasets prior to craniectomy and after cranioplasty were subtracted to quantify the volume and localization of the defect.<h4>Results</h4>Out of 91 patients, 21 had suitable datasets. Five cases had good cosmetic results with no defect visible, 16 patients had an apparent hollowing defect. Their average defect volume was 5.0 cm3 ± 4.5 cm3. The defect localizations were in the area behind the zygomatic process and just below the superior temporal line, covering an area of app. 3x3 cm2. Surgical attempts of temporal muscle restoration were more often found in reports of good results (p<0.01), but also in 50% of reports, whose surgeries resulted in hollowing of the temple. Mean time between the two surgeries was 112 ± 43 days. No significant differences between patients with and without hollowing defect were detected regarding time between the two surgeries, age or performing surgeon.<h4>Conclusion</h4>This work supplies evidence for the indication of a surgical corrective during cranioplasty in the small but cosmetically relevant area of the "frontozygomatic shadow". Based on our 3D data analysis, future focused surgical strategies may obtain better aesthetical results here.
format	article
author	Michael Kosterhon Eva Ruegg Malte Ottenhausen Anne Kühn Florian Ringel Max Jägersberg
author_facet	Michael Kosterhon Eva Ruegg Malte Ottenhausen Anne Kühn Florian Ringel Max Jägersberg
author_sort	Michael Kosterhon
title	Quantitative assessment and localization of the hollowing of the temple after craniectomy and cranioplasty-The frontozygomatic shadow.
title_short	Quantitative assessment and localization of the hollowing of the temple after craniectomy and cranioplasty-The frontozygomatic shadow.
title_full	Quantitative assessment and localization of the hollowing of the temple after craniectomy and cranioplasty-The frontozygomatic shadow.
title_fullStr	Quantitative assessment and localization of the hollowing of the temple after craniectomy and cranioplasty-The frontozygomatic shadow.
title_full_unstemmed	Quantitative assessment and localization of the hollowing of the temple after craniectomy and cranioplasty-The frontozygomatic shadow.
title_sort	quantitative assessment and localization of the hollowing of the temple after craniectomy and cranioplasty-the frontozygomatic shadow.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/91cec8836cd04cb09ef7c73f6c91c5c8
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Quantitative assessment and localization of the hollowing of the temple after craniectomy and cranioplasty-The frontozygomatic shadow.

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