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Biomedical subjects

M Robiony

Publications and source records attributed to M Robiony.

29 records · Page 2Linked to original sources

Stability of Le Fort I osteotomy in maxillary advancement: review of the literature.

Stability of the skeletal segments repositioned during orthognathic surgery is still a concern in maxillofacial surgery. In an attempt to establish a consensus about one of the most frequently performed repositioning surgeries, the literature from 1985 to 1999 concerning stability of Le Fort I osteotomy in maxillary advancement was reviewed. There have been many problems in interpreting the results of the analysis because of differences in the design of the studies and the multifactorial nature of the disorder. For this reason each problem that emerged in the literature is analyzed and discussed.

Humans↗

Truncal anaesthesia of the maxillary nerve for outpatient surgically assisted rapid maxillary expansion.

We present our experience of transcutaneous truncal anaesthesia of the maxillary nerve in association with transmucosal anaesthesia of the sphenopalatine ganglion in surgically assisted rapid maxillary expansion. Twelve patients with a skeletal transverse discrepancy of the maxilla were treated in our department from 1994 to 1995. Maxillary transcutaneous nerve block was done with a Quincke 8 cm spinal needle together with transmucosal anaesthesia of the sphenopalatine ganglion. Mepivacaine without adrenaline and sodium bicarbonate 1/10 was used for truncal anaesthesia and lidocaine-prilocaine cream for transmucosal anaesthesia. A Le Fort I osteotomy, lateral nasal wall osteotomy, pterygomaxillary osteotomy, and a palatal osteotomy were done for all patients before the maxillary expansion. Total anaesthesia of the maxillary area facilitated the operations and appreciably reduced the amount of postoperative pain. The ease of achieving effective anaesthesia before and after operation and the absence of side-effects make this form of anaesthetic particularly useful in surgically assisted rapid maxillary expansion.

Adolescent↗

Simultaneous malaroplasty with porous polyethylene implants and orthognathic surgery for correction of malar deficiency.

PURPOSE: Patients with skeletal malrelationships caused by maxillary anteroposterior defect and midface hypoplasia may present with an alteration of cheekbone contour. High osteotomies, segmental osteotomies of the zygomatic complex, and malar expansion with alloplastic materials can be performed to improve facial aesthetics. This article describes the restoration of cheekbone-nasal base-lip contour by performing a malaroplasty using an alloplastic implant in addition to orthognathic surgery. PATIENTS AND METHODS: From 1995 to 1996, 17 patients with maxillomandibular malrelationships and deficient cheekbone contour were tested by malar augmentation with porous high-density polyethylene in association with maxillary advancement and mandibular setback. The diagnosis of cheekbone contour alteration was made after observing the patient from a lateral, frontal, and oblique point of view. The position of the implant was determined by using Mladick's point, with lateral or medial extension in relation to the depressed area. RESULTS: By the restoration of normal cheekbone-nasal base-upper lip contour produced excellent aesthetic results in all patients. CONCLUSIONS: Malaroplasty in association with bimaxillary orthognathic surgery seems to be an effective procedure for treating midface skeletal deficiencies.

Biocompatible Materials↗

Surgical treatment for temporomandibular joint osteoarthrosis. Case report.

TMJ osteoarthrosis and internal derangements are in close connection, representing a substantial portion of temporomandibular disorders. The authors wish to underline the role of surgery in the treatment of this degenerative disease to improve function and to alleviate pain. A 63 year-old woman suffering from closed-lock with reduced opening movements was accepted in our Department in March, 1995. Clinical and radiological evaluations showed bilateral closed lock and severe TMJ osteoarthrosis. Occlusal, pharmacological and physical therapy were performed for one year, without results. Bilateral condylectomy and diskectomy with arthroplasty were carried out. Immediate muscular rehabilitation after surgery was performed by the patient. Follow-up 3, 6, 12 months after surgery were carried out. Full opening movements and reduction of pain were obtained 20 days after surgery. The patient, followed-up one year after surgery, presented effective mandibular movements and adequate amelioration of clinical picture. TMJ surgery in association with physical therapy represents in selected cases an adequate procedure for the treatment of TMJ degenerative disease.

Arthroplasty↗

Zygomatic leiomyoma. Case report.

Leiomyoma is a benign tumor that originates from the smooth muscle. If often develops in the uterus and in organs rich of smooth muscle like bowel and subcutaneous tissue. It is infrequently observed in the oral nasal cavities or in paranasal sinuses. The authors, after an accurate revision of the literature, present their first case of zygomatic leiomyoma. They underline the diagnostic aspects in relationship to histologic and immunohistochemical examinations, for surgical therapy.

Adult↗

Anthelix-conchal reconstruction with postauricular "revolving door" island flap.

The postauricular "revolving door" island flap is commonly used to reconstruct the conchal area after ablative surgery. This procedure may also be used to reconstruct the anthelix-conchal area after surgical removal of a squamous cell carcinoma of the external ear. The technique is simple and safe, and it can be performed as a one-stage procedure; moreover, excellent aesthetic results can be achieved.

Aged↗

[Percutaneous maxillary nerve block anesthesia in maxillofacial surgery].

BACKGROUND: Personal experience in percutaneous maxillary nerve block anesthesia in association with transmucosal anesthesia of the sphenopalatine ganglion in oral and maxillofacial surgery, is presented. METHODS: Six Caldwell-Luc, 9 anthrotomies and biopsies of maxillary sinus, 8 removals of extensive odontogenic cysts and 12 surgical maxillary expansions were performed from 1994 to 1996 at our Department. Maxillary transcutaneous nerve block in association with transmucosal anesthesia of the sphenopalatine ganglion were performed. Carbocaine without adrenaline in association with NaCO3 1/10 for maxillary nerve block anesthesia and lidocaineoprilocaine cream (EMLA) for transmucosal anesthesia were employed. Intra- and post-operative pain were evaluated by visual analogue scale in all the patients. RESULTS: Anesthesiological procedures revealed to be effective in all surgical interventions and postoperative analgesia allowed easier pain control. CONCLUSIONS: The simplicity of execution, the effective pre- and postoperative anesthesia and the absence of side effects make this procedure particularly indicated in oral and maxillofacial surgery.

Anesthesia, Dental↗