[Recovery of maxillary tooth sensibility after Le Fort I osteotomy]. / Récupération de la sensibilité dentaire maxillaire après ostéotomie de Le Fort I.

INTRODUCTION: Upper alveolar nerves, when injured during Le Fort I osteotomies, alter maxillary tooth sensitivity. We had for aim to analyze post-operative maxillary tooth sensitivity recovery. MATERIAL AND METHODS: We conducted a prospective study in a series of patients having undergone Le Fort I osteotomy, with, or without mandibular osteotomy or intermaxillary disjunction (IMD). The direction and range of displacement of the maxillary bone were recorded. One tooth in each alveolar sector (incisivocanine, premolar, molar) was tested with an electric stimulator for each patient. The tests were performed before (D-1), and after surgery (D2 or day+2, D+15, M2 (or month +2), M3, and M6). RESULTS: Twenty-two patients were included. Among the tested teeth, 91.9 % were sensitive at D-1. At D2, only 12.7 % of teeth were sensitive. At D15, M2, M3, and M6, the sensitivity was respectively 33.3 %, 43.1 %, 50 %, and 61.8 %. The recovery of sensitivity was faster in young patients (under 35 years of age) and for upper middle and superior alveolar nerves. There was no difference regarding the direction of maxillary movement. DISCUSSION: Among the teeth that were sensitive before surgery, 87.3 % had not regained sensitivity at D2. The recovery of sensitivity increased at D15. A great displacement of the maxillary bone was an aggravating factor for loss of tooth sensitivity.

[Hyalinizing clear cell carcinoma of the maxilla]. / Carcinome hyalinisant à cellules claires du maxillaire.

INTRODUCTION: Hyalinizing clear cell carcinoma (HCCC) of minor salivary glands (MSG) is a rare low-grade malignant neoplasm accounting for less than 1% of all salivary gland tumors. It usually affects the palate and the base of the tongue, and more rarely the parotid gland. We report a very rare maxillary localization. CASE REPORT: A 48-year-old male patient, without prior medical history, was referred to us for a painless gingival lesion of the right maxilla, extending from tooth 14 to 17, having appeared a few months before. The clinical examination was otherwise normal. Biopsy proved the diagnosis of HCCC. The CT scan revealed extension in maxillary sinus with bone osteolysis, and suspicion of cervical lymph nodes metastasis. The treatment was subtotal maxillectomy, cervical lymph node dissection, and postoperative radiotherapy because of incomplete bony resection. DISCUSSION: HCCC localization in the maxilla is extremely rare. This tumor may recur. The risk of metastasis is low; it concerns mainly lymph nodes. There is no treatment protocol consensus because the tumor is rare. Nevertheless, a wide local excision, with or without postoperative radiotherapy, seems to be the gold standard treatment.

[False aneurysm of the superficial temporal artery: report of two cases]. / Faux-anévrisme de l'artère temporale superficielle: à propos de deux cas.

INTRODUCTION: False aneurysms of the superficial temporal artery (STA) are rare and usually occur after a direct trauma to one of its branches. It is characterized by the local rupture of the artery wall. The diagnosis is made by clinical history and clinical examination. The treatment is surgery. CASE REPORT: Two patients, a 20-year-old man and an 82-year-old man, were referred with a pulsatile mass respectively in the temporal and the frontal area having evolved for several weeks. The diagnosis was made on clinical history (history of trauma was an important clue) and clinical examination (compression of the proximal STA should reduce pulsation) and confirmed by ultrasonography. The treatment was surgical, the STA was ligated proximally and distally and the pseudoaneurysm was resected successfully. DISCUSSION: False aneurysms can be differentiated from true aneurysms by a rupture in the arterial wall. A thorough clinical history must screen for the initial trauma often gone unnoticed. The aim of clinical and paraclinical examination is to eliminate other causes of pulsatile tumors that can be found in this area (true aneurysms of the STA or of the meningeal artery).

[Large breast hypertrophy and gigantomastia management by postero-inferior pedicle reduction technique. About 20 cases]. / Traitement des hypertrophies mammaires très importantes et des gigantomasties par la technique de réduction dite à pédicule postéro-inférieur. A propos de 20 cas.

The authors present a retrospective study about 20 patients operated for important breast hypertrophy and gigantomastia by the postero-inferior reduction technique. They compare the results obtained by this technique on the breast (projection, breast-feeding) and on the nipple-areola complex (sensibility, pigmentation, nipple projection), with those obtained by the Thorek technique (free nipple grafting). The authors show that this technique is reliable for such breasts hypertrophies, with good esthetics results, and avoid free nipple grafting.

[Massive sinus-lift procedures with beta-tricalcium phosphate: long-term results]. / Greffes sinusiennes massives par phosphate tricalcique. Résultats à long terme.

INTRODUCTION: The use of bone substitutes in massive sinus-lift pre-implant procedures remains controversial. The aim of our study was to evaluate the long-term reliability of pure-phase beta-tricalcium phosphate (betaTCP, Cerasorb, Curasan, Kleinostheim, Germany) used in this particular indication. MATERIAL AND METHOD: Twenty patients (33sinus) presenting with severe sinus floor atrophy (class 4 to 6 according to Cawood) and having undergone a sinus lift procedure by mean of betaTCP were followed in a prospective study between January 2002 and May 2008. The surgical approach was classical (under local anesthesia in eight patients) and the sinuses were filled with betaTCP (6 cm3 on average per sinus) and autologous growth factors (platelet rich plasma PRP and platelet rich fibrin PRF, according to the technique described by Dohan and Weibrich). One hundred and twenty-three dental implants were inserted in the grafted sinuses between the fourth and the eighth postoperative month (Nobel Biocare MK III and MK IV-mean length: 12.44 mm) using a 2-step buried technique and loaded between the fourth and the sixth month. Follow-up included regular clinical examination and panoramic X-rays to screen for possible sinus and implant complications. The control X-rays also allowed measuring the biomaterial resorption rate. RESULTS: The mean postoperative follow-up was 4.5 years for the sinus lift procedures and 4 years for the implants. We noted one case of local infection at the 15th postoperative day (3%). The implant success rate was 97.6% (lack of osteo-integration for two implants in the same patient, one failure after loading). The prosthetic success rate was 100%. The mean resorption rate of the material was 20.3% and the mean gain of height was 16.9 mm. DISCUSSION: The use of betaTCP associated to growth factors (PRP ou PRF) without bone graft, in massive sinus-lift procedures induces few complications. The implant success rate is comparable to the one obtained by using autologous bone grafts. The resorption rate of the material is comparable to that of autologous bone.

[Maxillary epithelioid hemangioendothelioma: case report and review of the literature]. / L'hémangioendothéliome épithélioïde du maxillaire : à propos d'un cas et revue de la littérature.

INTRODUCTION: Epitheloid hemangioendothelioma is a rare vascular tumor with a borderline malignancy and a potential risk for recurrence. It usually affects the soft tissue of extremities, the liver, and the lungs. The cervicofacial localization is rare. We report a very rare maxillary localization. CASE REPORT: An 8-year-old girl with no personal or family history was sent to us by her dentist for a painless ulceration of the right maxilla having developed months before. There was no cervicofacial lymphadenopathy. The orthopantomography was normal. CT scan revealed palatine osteolysis under the ulceration. Biopsy proved the diagnosis of an epitheloid hemangioendothelioma. Screening for metastases was negative. The final treatment was partial maxilectomy 11 months later. No sign of locoregional recurrence was observed. DISCUSSION: Twenty-six cases of oral epitheloid hemangioendothelioma have been reported. The localizations are mostly gingival and lingual. The gingival localization is more frequent in children. The small number of reported cases does not allow determining the risk of locoregional recurrence or metastasis. There is no consensus on treatment. Like other authors, we suggest performing a wide local excision and careful follow-up.

[Polylactic acid injections: usefullness for the treatment of facial lipoatrophy in HIV+ patients under tritherapy]. / Injections d'acide polylactique: intérêt dans la correction des lipoatrophies faciales chez les patients VIH+ sous trithérapie.

BACKGROUND: The aim of the study was to evaluate the mean-term efficacy and tolerance of the polylactic acid injections (New-Fill) for the correction of facial lipoatrophy occurring in HIV-positive patients under tri-therapy. MATERIAL AND METHOD: The patients were managed at the University Hospitals of Besançon and Strasbourg (France) from January 2002 to December 2005 for a prospective study. The patients were consecutively included in this study once their consent was obtained. Patients not stabilized by their antiretroviral treatment were excluded. Facial lipoatrophy was classified in four clinical stages (stage I: mild, stage II: moderate, stage III: important, stage IV: severe) after a clinical examination. The polylactic acid solution was prepared according to the manufacturer's recommendations, and injected in a retrotracing manner in the hypoderm at the rate of one 5 ml flask per side, with an interval of one month. The number of sessions varied according to the severity of the stage. Treatment efficacy, assessed after a minimal follow-up of one year, was established clinically by comparing the initial and final photographs (changes in the clinical stage) and by the patient's and surgeon's satisfaction rate (from zero to ten). Treatment tolerance was established on the painfulness of injections and on socioprofessional constraints reported by the patients and made on a visual analogical scale. The occurrence of adverse-effects was checked. Finally, we compared the cost of the treatment with that of lipostructure. RESULTS: Twenty-five patients were included (mean age: 44, sex-ratio: 23 male/2 female patients). The mean body mass index was 21. The mean CD4 cell count was 600/mm(3). The mean HIV-1 RNA was 276 copies/ml. The severity of the lipoatrophy was stage one in two patients (8%), stage two in 12 patients (48%), stage three in nine patients (36%), and stage four in two patients (8%). The mean number of sessions was 5.2. The mean follow-up time was 26 months. In 76% of the cases we observed a complete correction of lipoatrophy (100% of stages I, 92% of stages II, 66% of stages III, 0% of stages IV). However, among stages II, III, and IV that were incompletely corrected, an improvement was noticed in all patients (grading to an inferior stage, at least). The mean satisfaction rate was 8/10 by patients and 7.2/10 by surgeons. In six patients (24%) a renewal of the treatment was proposed because of inadequate results. The painfulness of injections was rated at 3.3/10 and constraints at 3/10 by patients. One single case of visible and palpable sub-cutaneous granuloma was noticed in a patient at the end of the follow-up period (18 months). DISCUSSION: The use of polylactic acid is a safe and efficient procedure for the treatment of facial lipo-atrophy in HIV-infected patients, however severe the clinical stage may be, after a two-year follow-up period. We recommend hypodermic (and not dermic) injections to prevent adverse effects. This treatment is not more expensive then lipo-structure and the progressive correction is considered as an important advantage by patients. Considering our results, the simplicity of the procedure, and the low rate of complications observed, the injection of poly-lactic acid has become our first intention treatment for this condition.

[Monitoring free flaps with cutaneous microdialysis: preliminary study in oral cavity reconstruction]. / Microdialyse cutanée des lambeaux libres: étude préliminaire dans la reconstruction de la cavité buccale.

INTRODUCTION: Postoperative monitoring of free flaps with microdialysis allows early diagnosis of anastomotic complications. Feasibi-lity studies are required to examine flap accessibility for oral cavity reconstruction. CASES: We present our preliminary findings in two patients who underwent radial free flap reconstruction of the floor of the mouth. For the first patient, a microprobe was used to monitor the flap for 45 hours. In the second case, an abdominal microprobe served as a control in healthy skin with another probe located in the cutaneous flap for 4 days. Flap monitoring, starting from the recovery room, was successful with easy manipulations for the nurse. Correlation between the monitoring curves and the clinical aspect of the flap was excellent. DISCUSSION: The microprobe should be short (1 cm), and carefully anchored. Naso-gastric feeding is required during monitoring. A close correlation has been found between glucose level and systolic pressure. The use of a comparative microprobe in healthy abdominal skin is helpful in learning to use the dialysis curves.

[Epidemiology of the mild and moderate brain injuries]. / Epidémiologie des traumatismes crâniens légers et modérés vus en chirurgie maxillo-faciale.

Unlike severe head injuries upon which much attention is focused, mild or moderate brain injuries are not or not well known and often neglected in maxillofacial surgery. Nevertheless, they are frequent in our routine facial traumatology activity. Studying the epidemiological data shows that mild brain injuries account for 64 to 94% of all head injured patients whereas moderate injuries occur in 3 to 23%. Furthermore, owing to their frequent occurrence, their high potential for sequelae and because they especially affect young people, they are a real public-health problem.

[Long-term functional and aesthetic sequelae after complex facial trauma associated with a mild brain injury]. / Séquelles esthétiques et fonctionnelles à long terme des victimes d'un fracas facial associé à un traumatisme crânien.

INTRODUCTION: Most victims of complex facial trauma will have permanent sequelae. The goal of our work was to evaluate, by means of a retrospective study, the long-term sequelae in these patients. MATERIAL AND METHOD: 102 victims of complex facial trauma were treated in our department between 1995 and 2000. Twenty-four could be re-examined in 2006 in order to evaluate their long-term sequelae. All the patients suffered a mild brain injury. RESULTS: The overall satisfaction rate was good (19/24), but all patients presented either functional or aesthetic sequelae. The major functional sequelae were dental lost (17/24), sensory impairment of the trigeminal nerve (15/24), partial or complete loss of vision (10/24), pain (10/24), hypo- or anosmia (9/24), stenosis of the lacrimal ducts (8/24) and symptomatic deviation of the nasal septum (7/24). The main esthetic sequelae were facial scarring (23/24), facial asymmetry (13/24), dystopia of the eyeball (11/24) and modification of the aspect of the nose (10/24). DISCUSSION: The prognosis of severe facial trauma is highly dependent on the quality of the initial pluridisciplinary care. Secondary revision procedures are technically more difficult and only enable partial resolution of persisting sequelae. Thus, primary single-course surgical procedures should be a priority, recognizing that complete recovery is almost always illusory.

[Long-term functional, psychic, social, occupational and judiciary outcome in victims of facial trauma]. / Devenir fonctionnel, psychique, socio-professionnel et judiciaire à long terme des patients victimes d'un fracas facial.

The cases of 102 people who suffered brain and facial trauma were reviewed, noting the long-term outcome at more than 5 years. Results of complete physical examinations performed by a surgeon and an internist were available for 25 patients. Data noted were: circumstances of the traumatic event, classification of brain injuries, sensory and sensorial disorders, and persistent pain, psychological trauma, social and occupational consequences and at the final legal and financial compensation. These data were summarized in tables to facilitate discussion of the findings.

[A therapeutic approach: the "Maxillo Family"]. / Une approche thérapeutique: "Famille Maxillo."

For patients with severe facial injuries, global management from trauma to "cure", is the leitmotif in the department of maxillofacial surgery of Besançon. The progressive development of therapy groups led to the creation of the "Maxillo Family" which is more or less modelled after well known "Gueules Cassées" French Association. We also created the "Journal of Maxillo" in which every injured patient can write his own story. This seems to be a very good therapeutic approach not only from the patients' point of view but also for practitioners and nurses. The testimony of a young woman victim of a dramatic accident with severe facial injury illustrates the interesting aspects of this therapeutic approach.

[Neuropsychology and forensic assessment in brain injured patients]. / Neuropsychologie: son apport dans l'expertise des traumatisés crâniens adultes.

Neuropsychology, which deals with the relationships between upper mental functions and brain structures is directly involved with psychiatric and psychological disorders and thus constitutes one of the major domains of cognitive sciences. The impairment of upper mental functions is evident after severe brain injuries causing significant motor deficits. However, it is becoming increasingly evident that even mild or moderate brain injuries can cause sequelae which are difficult to analyze and quantify clinically. These sequelae constitute an "invisible handicap" which may greatly interfere with the patient's professional, relational and social life. The neuropsychological evaluation must be systematic and complete and has to be carried out with a sufficient hindsight (two to three years after the trauma) using neuropsychological and behavioural deficiency evaluation scales. Psychometric tests are also necessary. The data obtained from this evaluation must be correctly interpreted and constitutes the main exhibit in the forensic examination of the brain injured patient.

[Total work disability: a national inquiry in France]. / L'ITT en traumatologie cranio-maxillo-faciale: résultats d'une enquête nationale.

Physicians are often asked to draft a descriptive medical certificate for victims of traumatic maxillofacial injuries. Among other requisites, this certificate must mention the subject's total work disability. If the injury results from intentional or unintentional assault and battery, the duration of the work disability will determine the competence of the court that will try and condemn the perpetrator. Thus the total work disability certificate has penal value and should be used only for this purpose. Using the data acquired from a national inquiry in France, we evaluated common practices among a panel of maxillofacial teams concerning the information mentioned on the initial medical certificate and, in particular, the duration of work disability allocated for the most frequent facial fractures. The aim of this study was to establish, based on the observed practices, whether it would be licit to propose a total work disability scale for maxillofacial trauma.

[Genetic aspects of cherubism]. / Aspects génétiques du chérubisme.

INTRODUCTION: Cherubism is an extensive kystic process of the mandibula. The diagnosis is often established in children presented swelling of the jaws. The familial determinism of cherubism is well-known, and recently autosomal dominant cases have been described with detection of the exon 9 - SH3BP2 mutation. OBSERVATION: We describe the case of a 14-year-old boy with grade I cherubism diagnosed late. The familial genomic analyze conducted in Berlin was negative for the recently identified candidate gene. DISCUSSION: Apart from dominant cases cherubism sometimes occurs sporadically, some of the cases resulting from a neomutation of the candidate gene. The present case with familial bone homeostasis and dental disorders is an argument for the recessive transmission hypothesis or for another candidate gene.

[Microdialysis of cutaneous free flaps to monitor results of maxillofacial surgery]. / Microdialyse et monitorage des lambeaux libres à palette cutanée en chirurgie maxillo-faciale.

The development of in vivo microdialysis has made it possible to monitor cutaneous free flaps in maxillo-facial surgery. A microprobe inserted in the free flap dermis collects a microdialysate enabling measurement of dermal metabolites such as glucose, lactate, pyruvate, or glycerol. The monitoring curves are predictive of ischemia-related tissue injury. Hourly measurements provide a reliable method for early diagnosis of venous or arterial thrombosis. Revision surgery can then be undertaken if needed to repair microanastomoses before clinical alteration. This technique has been compared with validated flaps monitoring systems such as temperature probe, transcutaneous oxygen tension monitoring, and laser Doppler flowmetry. Microdialysis has several advantages: objective measurements, different curves for venous and arterial thrombosis, early diagnosis. Accessibility to oral cavity or pharyngeal flaps requires careful clinical analysis (microprobe fixation, anatomy and choice of flap).

[Cellular neurothekoma in an 11-year-old child]. / Neurothécome cellulaire: un cas chez une enfant de 11 ans.

INTRODUCTION: Neurothekoma is a rare benign tumor which must be distinguished from certain malignant tumors such as fibrohistiocyte tumors or plexiform cell tumors, neurotropic melanomas and clear-cell sarcoma. CASE REPORT: An 11-year-old girl consulted for a recurrent subcutaneous tumor of the chin which had been operated 4 months earlier. The resection was incomplete. A wider revision resection successfully stopped recurrence. The histology study established the diagnosis of neurothekoma due to the presence of mitosis atypia, cellular nodules, and extension to the hypodermis. Immunohistochemistry confirmed the diagnosis. DISCUSSION: Neurothekoma is a benign tumor observed in young women, mainly on the face. It occurs as a dermal cohesive mass without infiltration of the epidermis. The typical immunohistochemical pattern enables differential diagnosis with myxoid neurothekoma, melanocytic and nervous system tumors. Surgical resection is indicated.

Oncogenic osteomalacia: diagnostic importance of fibroblast growth factor 23 and F-18 fluorodeoxyglucose PET/CT scan for the diagnosis and follow-up in one case.

A case of oncogenic osteomalacia is reported in a 71-year-old man who presented with bone pain, muscle weakness, and severe hypophosphatemia. The tumor which was localized in the left lower mandible was not detected by tomodensitometry, resonance magnetic imaging, and (111)IN-octreotide scintigraphy, but was easily localized by F-18 fluorodeoxyglucose PET/CT SCAN (F-18 FDG PET/CT SCAN). To our knowledge, the value of this technique for detecting tumors in oncogenic osteomalacia has never been reported. Secondly, this case provided an opportunity for confirming the usefulness of serum fibroblast growth factor 23 (FGF23) measurement for the diagnosis and follow-up. We conclude that FGF23 measurements combined with F-18 FDG PET/CT SCAN were decisive tools in a case of oncogenic osteomalacia and are likely to be of considerable importance for facilitating early diagnosis and follow-up in the future.