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Ten patients who had ameloblastoma of the mandible underwent surgery for resection of the tumor followed by immediate mandibular reconstruction with free autogenous nerve grafting using the greater auricular nerve. One year after surgery pain perception and tactile sensibility were completely restored in eight of the ten patients.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
The various surgical techniques for the repair of mandibular defects following ablative surgery are discussed. The methods used in the treatment of large mandibular cysts are described and a modification of the osteoplastic technique is presented. The importance of reconstruction and functional rehabilitation with so caused mandibular defects and temporo-mandibular joint substitutions are stressed.
A dual beam-quality technique was used to reduce the beam hardening artifact in CT and to obtain separate images of osseous and soft-tissue structures in phantom and clinical CT studies. Recordings were made with pulsed low and high kVp spectra with the Somatom DR2. Conventional polyenergetic and simulated monoenergetic images were reconstructed from the measurements. In the monoenergetic images the beam hardening artifacts were 60-90% lower than in the high kVp polyenergetic images whereas the noise was of the same order of magnitude in the two types. Noise in the monoenergetic images was lowest around 70-80 keV both in body and skull examinations although the contrast in the monoenergetic image was rather independent of energy.
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Sufficient information concerning the difficulties encountered in reconstructive surgery is rarely provided in the literature. This study, which was performed on 32 patients, points out a high rate of complication; major and minor complications were encountered in 68.8% of the patients. Benign and traumatic lesions caused the fewest problems. Malignant lesions, particularly those receiving radiotherapy, had the greatest incidence of complications. Successful reconstruction was accomplished in 75% of the cases. The use of a corticocancellous autogenous graft is suggested in selected cases of malignant disease.
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The advantages and special features of the THRP-system enabled us to develop new operative techniques. The combination of the advantages of external fixation devices and those of the internal osteosynthesis has proved to be decisive in order to obtain good results. The clinical results in 30 patients confirm the recently published findings from animal studies. Histological examination of human specimens comparing 2 types of screws developed by us are discussed.
Data were analyzed from case-reports of 80 patients undergoing resection graft procedures for benign mandibular tumors, and operated upon and followed up in the Stomatology and maxillo-facial surgical Unit, Hospital Salpêtrière, Paris from 1970 to 1984. In 27 cases surgery was by first intention; in the others it followed one or several previous operations, their multiplicity sensibly affecting the decision to operate and the development of postoperative suppurations.
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The various methods proposed to date for supporting the glossohyoid-laryngeal complex after removal of the mandibular arch have been examined. A new type of intra-oral maxillofacial prosthesis for supporting the soft lining tissues of the lower 3rd of the face is then described. This has made it possible to avoid final tracheostomy in spite of total mandible removal.