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At least 163 records · Page 9Linked to original sources
PubMed1987

[Preformed, autologous rib cartilage in the reconstruction of defects of the frontal bone].

The production of exactly fitting, preformed cartilage implants is described. These implants consist of rib cartilage chips that develop after 6 to 9 months' implantation under the thoracic and abdominal skin to a homogeneous and compact cartilage-connective tissue mass. The autologous implants are formed by using plastic shells that are perforated. This technique enables us to repair bone defects of the frontal and skull base region. As well as explaining the surgical procedure the advantages, disadvantages and indications are stressed.

Aged↗
PubMed2007

Frontal bone defect repair with experimental glass-fiber-reinforced composite with bioactive glass granule coating.

OBJECTIVE: The aim of this preliminary study was to test the bioactive glass-coated fiber-reinforced composite (FRC) as a reconstruction material in the treatment of experimental defects in the frontal bone of rabbits. METHODS: FRC made of E-glass fiber and BisGMA-PMMA resin matrix system was used in the study. Pieces of nonpolymerized FRC were coated with particulate bioactive glass granules S53P4 (BAG), and then the FRC was polymerized and post-cured by heat in air to reduce the quantity of residual monomers, and to sterilize the material for the animal study. Two round defects (5 mm in diameter) were drilled in the upper bony walls of 12 NZW rabbits' frontal sinuses, and rectangular FRC plates were applied over the defects. In the control group, no FRC plates were used. The bone defect healing process was evaluated on histological sections at 3, 6, and 8 weeks, postoperatively. SEM-EDX analysis was used to determine reactive layers of bioactive glass granules. RESULTS: The healing progressed from the fibroconnective tissue phase at 3 weeks to lamellar bone formation at 6 and 8 weeks. The difference in new bone formation between the implantation groups and control groups was not statistically significant, although in some animals the effect of the implant on bone healing was clearly positive. A moderate foreign body reaction was seen on the implant surface where BAG granules did not uniformly cover the implant's polymer matrix. CONCLUSIONS: This study suggests that the tested FRC implant with bioactive glass coating provides an alternative for bone defect reconstruction. However, more research on this composite material and its biocompatibility is needed.

Animals↗
PubMed1987

Intraosseous capillary hemangioma of the frontal bone.

A 31-year-old woman with a history of slowly progressive proptosis associated with blepharoptosis was found radiographically to have a lytic lesion of the frontal bone. Complete surgical excision of the bony mass was performed. Histopathologically the tumor was a capillary hemangioma. Follow-up information two years later showed that the patient was alive and well, without clinical evidence of recurrence. Plain x-ray films appear to be more reliable for diagnosis than computed tomography exhibiting the characteristic sunburst pattern of intraosseous hemangiomas.

Adult↗
PubMed2005

Isolated xanthoma of the frontal bone.

Xanthomas of soft tissue are common, well described lesions. Much less common are xanthomas of bone. Rarer still are xanthomas of the bones of the skull or facial skeleton. The case of a woman with an incidentally found isolated xanthoma of the frontal bone in the setting of normal blood lipid levels is reported. Surgical treatment of such lesions is both diagnostic, in excluding other lesions such as eosinophilic granuloma, and therapeutic.

Adult↗
PubMed2006

Solitary plasmocytoma of frontal bone presenting as an asymptomatic forehead lump.

Solitary plasmocytoma of bone is a rare type of plasma cell tumor. We present a case of a solitary extramedullary plasmacytoma of the frontal bone presenting as an asymptomatic forehead lump with clinically benign characteristics. This case highlights the need for a high index of suspicion when dealing with enlarging subcutaneous lumps of the forehead and scalp. The significance of this lies in the appropriate sequencing of investigations and the implementation of the necessary treatment regimen.

Aged↗