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Biomedical subjects

J Ferri

Publications and source records attributed to J Ferri.

51 records · Page 3Linked to original sources
PubMed1995

Usefulness of the galea flap in treatment of extensive frontal bone defects: a study of 14 patients.

We present a technique for treating extensive frontal bone loss after chronic osteitis and subsequent treatment. Unlike the technique usually performed in such cases (exclusion and filling), the frontal sinuses were conserved by isolating them from the reconstructed frontal vault. Isolation was achieved by means of a temporal galea and periosteum flap with a pedicle arising from the superficial temporal vessels. The study concerned 14 patients operated on from two to seven times for osteitis, which persisted in many patients for more than 10 years.

Adolescent↗
PubMed1995

[Standard radiography of the mandibular condyle in the dental office. The modified Parma and the Zimmer trans-orbital production technic using a retro-alveolar radiologic unit].

Trauma to the condylar area is rather frequent and the stomatologist should be capable of performing a standard radiographic exploration. Two incidences performed in the stomatologist's office using a dental tube appear to be essential. The modified Parma and the transorbitary Zimmer incidences are needed for lateral and anteroposterior views respectively. The equipment required for these views are described together with several examples.

Female↗
PubMed1995

[Orthognathic surgery with missing teeth].

Orthognathic surgery in patients with missing teeth can be divided into two categories. In the first case after tooth loss, specially designed bridging is required using the prosthesis already in place. In the second case in patients with congenital deficiencies, usually sequellae of cleft palate, there is a wider range of therapeutic options which are discussed on the basis of observed cases.

Anodontia↗
PubMed1995

[A panorama of current materials for osseous application in maxillofacial surgery and oral implantology].

Many materials are used in bone reconstruction. According to their physico-chemical structure, their activity is based on one of the three main mechanisms of bone repair: osteogenesis, osteoconduction, osteo-induction. The materials can be classified in two categories: tissues and substitution biomaterials. Tissues may be living ones (mainly, autograft) or non living ones (mainly, allograft or xenograft). Among the substitution biomaterials, we find synthetic materials (calcium based ceramics, vitreous ceramics and bioglasses, polymers) and composite materials made of a mixture of synthetic and natural materials or a mixture of different synthetic materials or a mixture of different synthetic materials. At last, membranes provide a new technic in bone reconstruction. They come from natural origin (human or animal) or synthetic origin (resorbable or non resorbable).

Animals↗
PubMed1995

[Maxillofacial manifestations of Steinert's myotonic dystrophy. Clinical and therapeutic aspects].

The craniofacial manifestations, together with teleradiographic and cephalometric findings, of Steinert's dystrophy were examined based on a review of the literature and the clinical features of several patients with myotonic dystrophy leading to the diagnosis of Steinert's disease. The prevalence of the functional impairments due to facial deformation varies with the severity of the disease, suggesting early interceptive treatment supported by orthopaedic care and rehabilitation therapy of orofacial functions. Surgery involves bimaxillary osteotomy which can improve mastication and facial morphology. Operative risks should be carefully identified with adequate explorations before surgery.

Adolescent↗
PubMed1994

[Tooth extraction in hemophiliacs and patients with von Willebrand's disease. Therapeutic proposals apropos of 26 cases].

Extensive bleeding is an important complication of dental extractions in haemophiliacs. Based on 26 case reports, the different therapeutic possibilities are discussed. When general or regional anaesthesia is required, protocols can be proposed for coagulation factor supplementation or even treatment with Minirin. In cases with local anaesthesia, substitution is not required. The importance of mandatory local haemostatic measures combined with antifibrinolytic treatment is emphasized.

Adolescent↗
PubMed1993

[Saethre-Chötzen syndrome. A study apropos of 17 cases].

Case reports of seventeen patients with the Saethre-Chötzen syndrome treated at the Stomatology and Maxillofacial Surgery Clinic, Nantes, France are analyzed, together with clinical and paraclinical signs of this syndrome, included within the framework of the acrocephalosyndactylies. Results of cases reported in the published literature are reviewed and compared with those of the present series. The characteristic craniofacial equilibrium of the Saethre-Chötzen syndrome is discussed, together with findings of a teleradiographic study performed according to Delaire's analysis. A discussion on the differential diagnosis of this syndrome is enlarge to include all acrocephalosyndactylies.

Acrocephalosyndactylia↗
PubMed1993

[Our experience using free vascularized bone flaps in mandibular reconstruction. The external brachial flap, the fibular flap, the para-scapular flap].

New techniques developed over the last decade use vascularized bone flaps for maxillofacial reconstructive surgery. Indications for use of three recently described flaps (external brachial, fibular, parascapular) are discussed as a function of the regions to be reconstructed. Three clinical cases are presented, each patient having received one type of flap.

Adult↗
PubMed1989

[Fracture injuries of the mandibular arch. A repair technic].

The authors describe a technique for reduction of external lateral displacement of the posterior portions of the mandibular arch following unifocal or multifocal fractures. To achieve reduction they use a basilar wire transfixing the floor of the mouth and stretched between two horizontal branches, most often combined with a symphyseal osteosynthesis. This study of ten cases demonstrates the good functional and cosmetic results obtained with this method.

Adult↗
PubMedDate not supplied

[Usefulness of FDG-PET in the diagnosis of patients with chronic severe brain injury].

INTRODUCTION: To describe the changes in cerebral glucose metabolism after a severe traumatic brain injury (TBI), at the beginning of the rehabilitation, to analyze its diagnostic agreement with morphologic neuroimaging technologies (MR/CT) and to correlate the neuroimaging findings with the intensity of the TBI and the functional ability for daily activities. MATERIAL AND METHODS: Prospective study of 55 patients who had sustained a severe TBI (GCS < or = 8) by means of 18F-FDG PET and MR/CT. The agreement between anatomical and functional neuroimagen studies was measured. Correlation between cerebral injury severity in neuroimaging, clinical functional evaluation assessed with Barthel-M Index and GCS were tested. RESULTS: 100 % of patients showed changes in cerebral metabolism, being the thalamus the area more frequently affected. 60 % of patients showed injuries in MR/CT, more frequently in frontal areas. The agreement for the diagnosis of pathology between morphologic and functional neuroimagen was very low. The TBI severity showed significant statistical correlation with the degree of cerebral metabolism and the level of disability. CONCLUSIONS: 18F-FDG PET allows to know the cerebral glucose metabolism at the beginning of the rehabilitation, being correlated with the TBI severity and the level of patient's disability for daily activities. 18F-FDG PET diagnoses major number of injuries that traditional neuroimaging and demonstrates a high thalamic vulnerability, with injuries in up to 76 % of patients with severe TBI.

Adolescent↗
PubMedDate not supplied

[Intelligence and prognosis in severe traumatic brain injury: a neuropsychological study with the Wechsler adult intelligence scale (WAIS-III)].

OBJECTIVE: To evaluate the utility of the Wechsler adult intelligence scale III (WAIS-III) as a measure of intelligence after severe brain injury, and to elucidate prognostic factors associated with intelligence coefficients (IQs). METHODS: Forty-six patients (age: 27.4 +/- 12.8 years) attending our service after a severe head injury were included in our study (chronicity: 315.3 +/- 330 days after injury). All patients were assessed with the WAIS-III. WAIS-III IQs were correlated (Pearson and Spearman) with clinical and demographic data. A significance level of p < 0.05 was used in all comparisons. IQs between 1 and 2 standard deviation (SD) below normative data were considered "mild abnormal" while indexes below 2 SD were considered "abnormal". RESULTS: Only eleven patients (25 %) showed normal total IQ with predominance of manipulative (77.7 %) compared to verbal (64.5 %) impairment. Thirty-eight patients (95 %) had difficulties in speed processing, thirty-six (85.6 %) had problems with working-memory, twenty-five (62.5 %) showed impairments in perceptual organization, and twenty-six (62 %) had verbal comprehension deficits. WAIS-III IQs showed significant correlations with length of coma and posttraumatic amnesia duration (p < 0.05). CONCLUSIONS: The WAIS-III is a valid and sensible tool to detect cognitive deficits associated with brain injury. Almost all patients with severe brain injury show abnormal IQs with a slow processing speed as predominant symptom. Length of coma and posttraumatic amnesia seems to be the most relevant parameter related to intelligence in severe brain-injured patients.

Adolescent↗