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Results for “Frontal Bone”

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At least 19 recordsLinked to original sources
PubMed1977

[Aneurysmal bone cyst of the frontal bone (author's transl)].

A six year-old boy. He complained of a swelling of the left forehead since October of 1971, the region of his upper eyelid has then been gradually swollen. He was admitted to our institute on the 24th of February, 1973, without the past history of head trauma. We found that the swollen region had a diameter of about 4 centimeters covered from the left upper eyelid to the forehead with a slight tenderness on pressure. We had no neurological findings. According to the results of skull X rays, the superior margin of left orbit and zygomatic process of frontal bone were swollen and like honey combs. An irregular, long and narrow osteolytic legion was found, which was about 4 centimeters long and 5 centimeters wide. According to the results of the left selective external carotid angiography, after injection of 60% Urografin, for more than 2.5- 10 seconds, at the left frontal bone an abnormal shadow (patchy contrast filling) was noted, which was about 4 centimeters long and 5 centimeters wide. After the direct injection of Urografid into the lesion, the cyst of one centimeter long and 3 centimeters wide was observed at the zygomatic process of the frontal bone. Operation was performed to excise the outer plate of the swollen bone and to curette the lesion after the ligature of the left external carotid artery. Histological examination showed many blood lakes and some multinuclear giant cells in the specimens and we diagnosed it was an aneurysmall bone cyst. This case is the first one of aneurysmall bone cyst confirmed by the selective external carotid angiography and the direct puncture of lesion.

Bone Cysts↗
PubMed1979

[Reconstruction of the frontal bone after trauma (author's transl)].

Reconstruction of the frontal bone after trauma has to be performed in a different manner according to whether the frontofacial lesions are associated or not with neurosurgical disturbances. The lesions in the first case mainly affect all the orbital borders and the anterior walls of the frontal sinuses. Reconstruction of the frontal bone usually requires osteosynthesis to the metallic threads of the various fragments applied, but the treatment of the frontal sinus region must be modulated in relation to the possible existence of posterior wall lesions. Frontofacial lesions associated with neurosurgical disorders require the combined efforts of a neurosurgical and maxillofacial team at the same time. The frontal sinus extends into the cranial region in all cases. Frontal bone reconstruction requires the use of various techniques (osteosynthesis to metallic threads, grafts taken from the iliac or other bones), according to the site and severity of the traumatic lesion.

Adolescent↗
PubMed1978

Microscopic age changes in the frontal bone of the domestic rabbit.

This study reveals age related changes in the microscopic structure of the paired frontal bone of the domestic rabbit. Undecalcified ground sections were prepared from anterior frontal bone slices removed from New Zealand White rabbits ranging from birth to 24 months of age. Included were 40 females, 4 males and 6 rabbits less than 14 days old of unknown sex. The ground sections revealed both qualitative and quantitative age changes. Qualitative changes include change in bone tissue types and developmental processes, and presence or absence of primary and secondary osteones. Quantitative changes were measured by counting primary osteones in the outer table of each frontal bone half within 1.6 mm of the metopic suture. In this region, primary osteones were absent at birth, limited in number at 14 days and generally numerous between one and three months of age. In animals older than three months, numbers of primary osteones generally decreased with increasing age. No animals older than 16 months revealed primary osteones. Possible sources of variability in the relationship between observed primary osteone number and age include ability to recognize primary osteones, methods of sampling and processing bone slices, sex related differences and diseases afflicting specimen. Significance of this study includes increased knowledge of frontal bone growth and histology.

Aging↗
PubMed1978

[Contribution to chronical osteomyelitis of the frontal bone (author's transl)].

Osteomyelitis of the frontal bone occurs in an acute and in chronical form. Aetiology and pathogenesis of the chronical form will be described. It is said, that by usage of antibiotics the typical findings and courses have been changed. According to three own cases osteomyelitis appeared in a haematogene metastatic form after a maxillary sinusitis in different intervals. The outcomes are described and compared with literature. The cause is considered being an unsufficient antibiotical treatment of maxillary sinusitis.

Adolescent↗
PubMed1975

Growth in width of the frontal bones after fusion of the metopic suture.

Rat frontal bones reportedly exhibit lateral surface growth many weeks after fusion of the frontal suture. This is histologically confirmed in the present study. The mean width of the cranial vault at the postorbital constriction increased by 10% between the age of 30 and 58 days. The increase must be ascribed to periosteal growth, as the lateral, external surfaces exhibited active growth. External apposition without concomittant internal resorption causes an increase in bone thickness. The cells on the internal surfaces were in a state of rest. The study was based on a limited material; therefore, definite conclusions cannot be drawn.

Animals↗
PubMed1979

Lipoma of the frontal bone.

A 61-hear-old man was followed up for more than 17 years with what was thought to be fibrous dysplasia of the frontal bone. Postmortem microscopic examination of the lesion showed an intraosseous lipoma with myxomatous foci and bony metaplasia involving the frontal and orbital portions of the frontal bone.

Aged↗
PubMed1977

The cavernous haemangioma of the frontal bone. A case report.

A case of haemangioma of the frontal bone is presented. The clinical presentation and the radiological features, which are diagnostic of this very rare condition, are given. Treatment is complete excision of the tumour, the macroscopical and microscopical appearances of which are discussed.

Adult↗
PubMed1979

[Late results of frontal bone reconstructions using Paladon].

Report about 12 cases of defect of the frontal bone: state after radical operation of the frontal sinus (Riedel's operation) or after removal of bone splinters after injury. 6--12 months later a paladon-inlay (acrylate prosthesis) can be implanted to fill the defect and to restore the profile. Description of the production, forming, sterilization and operative implantation of the prosthesis. The patients have been observed up to 18 years. In one case the implanted material was removed after 10 years because of recurrent local suppurations. All the other patients showed an uncomplicated course until today; the cosmetic and functional result was permanently good.

Acrylic Resins↗
PubMed1976

[Substitution of the frontal bone with silicon].

The good results obtained with silicon implants used in the frontal region are reported by the authors. After the correct primary treatment the reconstructive operations have been performed at the least 6 months after the lesion, if the environment of the defect was free from any reaction during this time. 14 implantations have been performed in 2 years. Satisfactory functional and cosmetic results were obtained and the implant was to be removed in no case.

Elasticity↗