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At least 181 records · Page 10Linked to original sources

The use of immediate frozen autogenous mandible, for benign tumour mandibular reconstruction.

Reimplantation of frozen autogenous lesioned mandible was performed in 31 patients with mandibular bone cysts and tumours. 26 reimplanted grafts survived without complications following surgery. Two cases had postoperative infections which were resolved following appropriate antibiotic treatment. Three grafts were removed due to the severe infection and wound dehiscence. The follow-up from 6 months to 4 years showed that there was no recurrence of the primary lesion in the 28 successful cases. Satisfactory facial contour after surgery was achieved in 19 patients, while other patients showed relatively mild facial disfigurement. The inferior alveolar nerve was repaired in 4 cases and a functional evaluation was made using an acupuncture pressure tester.

Adolescent↗

Reconstruction of mandibular discontinuity defects using autogenous grafting and a mandibular reconstruction plate: a prospective evaluation of nine consecutive cases.

This article presents the clinical results of a prospective evaluation of nine cases of mandibular discontinuity that were reconstructed using autogenous grafting and a reconstruction plate. All patients were allowed to function immediately postsurgery. Acceptable esthetic and functional results were obtained with minimal donor and recipient site complications. All cases showed complete graft incorporation and restoration of osseous continuity.

Adolescent↗

New concepts in the reconstruction of mandibular defects following tumor resection.

The results of experiments with a new reconstruction plate used to bridge defects in irradiated and nonirradiated mandibles of dogs are presented. The principles of fixation of the plate with hollow titanium powder-sprayed screws and a titanium mesh for stabilizing the autologous cancellous bone are discussed. The direct contact between the surface of the screw and the bone, as well as proliferation of bone into the hollow screw, are demonstrated by light and scanning electron microscope studies. Autologous cancellous bone fixed with the new mesh leads to bridging of the defect even in irradiated areas.

Animals↗

A pathologist's approach to the treatment of ameloblastoma.

There are three clinical types of ameloblastoma: the solid or multicystic type; the unicystic type; and the rare peripheral type. Important considerations in planning treatment include the clinical type as well as the anatomic location of the tumor and the availability of the patient for follow-up examinations. The various histologic patterns exhibited by this tumor have no bearing on its biologic behavior. In this article the treatment of the three types of ameloblastoma is discussed, with emphasis on their biologic behavior and anatomic considerations.

Ameloblastoma↗

Analysis of reconstruction of mandibular defects using single stainless steel A-O reconstruction plates.

PURPOSE: This report reviews the results and complications of immediate reconstruction using a single stainless steel A-O plate after resection of mandibles invaded by malignant tumors. PATIENTS AND METHODS: Thirty-four patients were retrospectively evaluated. According to the extent of the tumor, hemimandibulectomy or segmental resection were performed in 4 and 30 cases, respectively. Five of 34 cases required a myocutaneous flap to close soft tissue defects. RESULTS: Nine of the 34 patients died during the follow-up period. Complications occurred in 7 of these patients: plate exposure was caused by local tumor recurrence (4 cases), screw loosening (1 case), and temporomandibular joint pain (2 cases). Twenty-five of the 34 patients (73.5%) were alive, with a mean follow-up of 47.4 months (range 6 to 115 months). Eighteen of the 25 surviving patients with the single A-O plate reconstruction did not show any complications. Thirteen of these (52%) patients had not undergone secondary reconstruction. Five of the 25 patients received secondary reconstruction for cosmetic or masticatory function reasons. Postoperative complications occurred in 7 of the 25 surviving patients (28%): extraoral plate exposure (2 cases), fracture of the plate (1 case), mandibular fracture (1 case), screw loosening (3 cases), and screw fracture (1 case). CONCLUSIONS: On the basis of the findings, it was concluded that a single A-O reconstruction plate can be used for temporary, or sometimes even permanent, reconstruction after mandibular resection.

Bone Plates↗

Immediate temporary reconstruction of mandibular continuity defects in cancer patients.

A technique is described in detail which will produce a predictable immediate temporary reconstruction of a mandibular continuity defect. The procedure is quick, inexpensive and reliable. A review of various methods of reconstruction is presented and compared with our technique. Complications are discussed. A review of our patients is presented.

Electromyography↗

Experience with 220 cases of mandibular reconstruction.

Extensive resections of the mandible are usually carried out for malignat tumours or non-malignant tumours with a tendency to reccur, such as ameloblastomas. These hemi-resections include the ascending and horizontal ramus of the mandible. Such mutilations have serious functional and aesthetic consequences. In order to avoid these drawbacks we use two sorts of implants. The first are made from metallic and plastic materials. They are used when patients are too weak to support a bone graft, when there is insufficient soft tissue coverage, or when a recurrence of the tumour is feared. In order to be well tolerated they must be made of materials which are fully accepted by the tissues. For the plastic part we use methyl-methacrylate and, for the metal part, "durallium". The second type is used to maintain a bone graft in good position. It is completely metallic. The pattern is made in wax and reproduced in durallium. They are made and adjusted in the same way as plastic implants. The results are analysed separately covering two periods. In the first (1955-1967), the failures have been relatively large (25%). During the second period (1967-1974), a better choice of operative indications and a more precise technique gave better results (failure: 13%).

Ameloblastoma↗

Temporary reconstruction of the lower jaw by condylar reimplantation. Case report.

An alternative method to temporary lower jaw reconstruction with a reconstruction plate prosthesis is described. To prevent penetration of an alloplastic condyle transplant through the skull base, and to restore joint function, we have reimplanted the resected condyle after its fixation to the reconstruction plate. Postoperatively, there have been no complications. Joint function has been almost completely restored. The reimplanted condyle has been investigated after 28 months. It has undergone remarkable changes.

Bone Plates↗

Primary reconstruction of the mandible in cancer surgery. A report of 13 reconstructions according to the principles of rigid internal fixation.

This study comprises 30 patients with extensive oral cancer invading the mandibular bone. In each case, large segmental composite resections were performed and the mandibles primarily reconstructed, according to the principles of rigid internal fixation. All but one of the reconstructions were successful and the functional and cosmetic results were excellent or good in 12 patients. The results indicate that primary reconstruction can be performed without major complications. Bone transplantation may be omitted or postponed to a later date. The fact that tracheostomy and intermaxillary fixation can be avoided, is a major advantage for these patients.

Adult↗