Skull reconstruction planning transfer to the operation room by thin metallic templates: Clinical results

Clijmans, Tim; Mommaerts, Maurice Y.; Gelaude, Frederik; Suetens, Paul; Sloten, Jos Van Der

doi:10.1016/j.jcms.2007.08.003

Cited by 15 publications

(6 citation statements)

References 19 publications

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“…These data are part of a data set used to study the construction of accurate target data for surgical correction of craniofacial anomalies. 6,16,38,39 All CT scans were screened for any pathology influencing the cranial bone, and if present, CT scans were excluded for further analysis. Because most CT scans were performed for minor head trauma workup, only a few presented with pathology influencing the cranial bone (such as tumor or hydrocephalus).…”

Section: Methods Ct Data Collectionmentioning

confidence: 99%

Creating a normative database of age-specific 3D geometrical data, bone density, and bone thickness of the developing skull: a pilot study

Delye

Clijmans

Mommaerts

et al. 2015

PED

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laboratory investigation J neurosurg Pediatr 16:687-702, 2015 F inite element models (FEMs) of the human head are widely used for studying the biomechanics of traumatic brain injury. 12 FEMs of the human head are virtual computer models representing a human head in great anatomical detail. These models try to offer a better understanding of brain injury tolerance by simulating stress and strain patterns in the skull and brain tissue after impact, mimicking the occurrence of traumatic brain injury as realistically as currently possible. These models try to accurately predict the circumstances that cause traumatic brain injury. To do this, an FEM needs material properties of the brain tissue and skull to correlate a particular applied inertial and contact load to resulting intracranial strains and stresses. Therefore, a correct anatomical representation and use of correct material properties of a child's skull and each intracranial tissue are necessary to develop an FEM of a child's head, capable of realistically simulating the response upon impact. Only such an obJect Finite element models (FEMs) of the head are used to study the biomechanics of traumatic brain injury and depend heavily on the use of accurate material properties and head geometry. Any FEM aimed at investigating traumatic head injury in children should therefore use age-specific dimensions of the head, as well as age-specific material properties of the different tissues. In this study, the authors built a database of age-corrected skull geometry, skull thickness, and bone density of the developing skull to aid in the development of an age-specific FEM of a child's head. Such a database, containing age-corrected normative skull geometry data, can also be used for preoperative surgical planning and postoperative long-term follow-up of craniosynostosis surgery results. methods Computed tomography data were processed for 187 patients (age range 0-20 years old). A 3D surface model was calculated from segmented skull surfaces. Skull models, reference points, and sutures were processed into a MATLAB-supported database. This process included automatic calculation of 2D measurements as well as 3D measurements: length of the coronal suture, length of the lambdoid suture, and the 3D anterior-posterior length, defined as the sum of the metopic and sagittal suture. Skull thickness and skull bone density calculations were included. results Cephalic length, cephalic width, intercoronal distance, lateral orbital distance, intertemporal distance, and 3D measurements were obtained, confirming the well-established general growth pattern of the skull. Skull thickness increases rapidly in the first year of life, slowing down during the second year of life, while skull density increases with a fast but steady pace during the first 3 years of life. Both skull thickness and density continue to increase up to adulthood. conclusions This is the first report of normative data on 2D and 3D measurements, skull bone thickness, and skull bone density for children aged 0-20 y...

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Section: Methods Ct Data Collectionmentioning

confidence: 99%

Creating a normative database of age-specific 3D geometrical data, bone density, and bone thickness of the developing skull: a pilot study

Delye

Clijmans

Mommaerts

et al. 2015

PED

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“…Individual titanium implants [33], [54], [133] are suitable for secondary reconstruction. Such prefabricated titanium implants are milled from a solid titanium block per Computer Aided Manufacturing (CAM) (see chapter 3.3.1.2, presentation Maier http://www.egms.de/en/journals/cto/2011-8/cto000059.shtml) after acquisition of CT-data and Computer Aided Design (CAD).…”

Section: Bone Substitutesmentioning

confidence: 99%

Biomaterials for craniofacial reconstruction

Neumann

2009

GMS Current Topics in Otorhinolaryngology - Head and Neck Surgery; 8:Doc08; ISSN 1865-1011

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“…Though these imaging modalities are helpful in preoperative structural assessment of the affected subjects, they however are not much of help for assessment of perfusion abnormalities and functional problems (e.g., cognitive, visual) related to the craniosynostosis [6, 7]. Recognition of the latter problems improves surgical outcome and reduces treatment delay [8]. …”

Section: Introductionmentioning

confidence: 99%

Role of^99mTc-ECD SPECT in the Management of Children with Craniosynostosis

Barik

Bajpai

Das

et al. 2014

BioMed Research International

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Purpose of the Report. There is a paucity of data on correlation of various imaging modalities with clinical findings in craniosynostosis. Moreover, no study has specifically reported the role of 99mTc-ECD SPECT in a large number of subjects with craniosynostosis. Materials and Methods. We prospectively analyzed a cohort of 85 patients with craniosynostosis from year 2007 to 2012. All patients underwent evaluation with 99mTc-ECD SPECT and the results were correlated with radiological and surgical findings. Results. 99mTc-ECD SPECT revealed regional perfusion abnormalities in the cerebral hemisphere corresponding to the fused sutures preoperatively that disappeared postoperatively in all the cases. Corresponding to this, the mean mental performance quotient (MPQ) increased significantly (P < 0.05) postoperatively only in those children with absent perfusion defect postoperatively. Conclusions. Our study suggests that early surgery and release of craniosynostosis in patients with preoperative perfusion defects (absent on 99mTc-ECD SPECT study) are beneficial, as theylead to improved MPQ after surgery.

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Skull reconstruction planning transfer to the operation room by thin metallic templates: Clinical results

Cited by 15 publications

References 19 publications

Creating a normative database of age-specific 3D geometrical data, bone density, and bone thickness of the developing skull: a pilot study

Creating a normative database of age-specific 3D geometrical data, bone density, and bone thickness of the developing skull: a pilot study

Biomaterials for craniofacial reconstruction

Role of^99mTc-ECD SPECT in the Management of Children with Craniosynostosis

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Skull reconstruction planning transfer to the operation room by thin metallic templates: Clinical results

Cited by 15 publications

References 19 publications

Creating a normative database of age-specific 3D geometrical data, bone density, and bone thickness of the developing skull: a pilot study

Creating a normative database of age-specific 3D geometrical data, bone density, and bone thickness of the developing skull: a pilot study

Biomaterials for craniofacial reconstruction

Role of99mTc-ECD SPECT in the Management of Children with Craniosynostosis

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Role of^99mTc-ECD SPECT in the Management of Children with Craniosynostosis