Publications by authors named "H L Verwoerd-Verhoef"

The anatomy of the nasal skeleton in newborns and adults are not alike. The complete cartilaginous framework of the neonatal nose becomes partly and gradually ossified during the years of growth and is more vulnerable to trauma in that period. Injury in the early youth may have large consequences for development of a nasal deformity which will increase during growth and reach its peak during and after the adolescent growth spurt.

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The anatomy of the nasal skeleton in newborns and adults are not alike. The complete cartilaginous framework of the neonatal nose becomes partly and gradually ossified during the years of growth and is more vulnerable to trauma in that period. Injury in early youth may have large consequences for development and may result in a nasal deformity which will increase during growth and reach its peak during and after the adolescent growth spurt.

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In newborns, the main supporting structure of the nose is the dorsoseptal cartilage, a T-bar-formed complex of septum and upper lateral cartilages, which is essentially an external extension of the cartilage of the anterior cranial base. Later the anatomic situation gradually changes -- a potential pitfall for surgeons and radiologists. The vulnerability of various processes underlying postnatal development of the facial skeleton is discussed.

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Objective: An anterior cricoid split (ACS) causes an immediate distortion of the cricoid cartilage resulting in an anterior gap due to retraction of the cut ends. The objective of this animal study is to investigate: (1) to what extent the distortion after ACS is influenced by non-cartilaginous structures like tunica elastica, membranes, ligaments and muscles, which are connected to the cricoid; (2) how distortion is changing with further development; (3) in what way the distortion is affected by scoring of the internal surface of the cricoid; and (4) whether an immediate or late injury-induced distortion is related to age.

Methods: Surgical interventions were performed in 20 young (8 weeks of age, 1300-1600 g) and 5 adult (28 weeks of age, 3500-4000 g) New Zealand White rabbits.

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