Calotte defects that are larger than 3-5 cm require stable plastic reconstruction. Osseous regenerations take place at the connective tissue bone of the calotte if the dura is intact. Even large defects may be considerably reduced in this way within 2 or 3 years. Hence, indications must be critically reconsidered on a long-term basis. Autoplastic grafting of a rib segment has been known from the beginning of the present century. It has many advantages. Our approach, experience and results are presented.
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Comparison of two different biomaterials in the bone regeneration (15, 30 and 60 days) of critical defects in rats.
Acta Cir Bras
July 2021
Associate Professor. Department of Morphology and Pathology - Universidade Federal de São Carlos - Sao Carlos (SP), Brazil.
Purpose: To evaluate and compare two types of different scaffolds in critical bone defects in rats.
Methods: Seventy male Wistar rats (280 ± 20 grams) divided into three groups: control group (CG), untreated animals; biomaterial group 1 (BG1), animals that received the scaffold implanted hydroxyapatite (HA)/poly(lactic-co-glycolic) acid (PLGA); and biomaterial group 2 (BG2), animals that received the scaffolds HA/PLGA/Bleed. The critical bone defect was induced in the medial region of the skull calotte with the aid of an 8-mm-diameter trephine drill.
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Servicio de Neurofisiología Clínica, Hospital Universitario Marqués de Valdecilla, Santander, España.
Introduction: Brainstem is the most frequently affected structure in neurobehçet disease. Brainstem auditory evoked responses (BAER) and magnetic resonance imaging (MRI) have been employed in early diagnosis of the disease. We present here a case of neurobehçet disease which brainstem lesion was suspected by blink reflex and corroborated by MRI.
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Eur J Pediatr Surg
August 1991
Abteilung für Kinderchirurgie, Universitätsklinik der Friedrich-Schiller-Universität, Jena.
Calotte defects that are larger than 3-5 cm require stable plastic reconstruction. Osseous regenerations take place at the connective tissue bone of the calotte if the dura is intact. Even large defects may be considerably reduced in this way within 2 or 3 years.
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In the treatment of fronto-basal cerebrocranial trauma and primary or secondary orbital tumors, definitive surgical intervention in one sitting has proven very successful. The orbital roof, the lateral orbital walls, and the frontal base are reconstructed with a bone meal/fibrin sealant plastic, whereas the orbital rims are revised using available bone fragments refitted using osteosynthetic procedures. Remaining calotte defects are covered alloplastically with Refobacin-Palacos.
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Radiologe
March 1988
Neurochirurgische Klinik und Poliklinik, Universität Erlangen-Nürnberg.
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