Biomedical subjects
Publications and source records attributed to K M Cariappa.
Dentists and their assistants are at risk of physical injuries during dental operations. The most common injuries are musculoskeletal. The need to work in a fixed working position using continuous repetitive movements can predispose dentists to wrist ache, lower backache, and neckache. We encountered a rare case of scapholunate dislocation with ligamentous injury, an unusual complication of extraction of teeth.
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Fracture of the zygomatic arch is usually treated using blind methods. As the fracture lines cannot be visualised directly in closed reduction, digital exploration and crepitus noise or conventional radiographic imaging are used clinically as a guide to reposition the fragments. Successful closed reductions are often difficult to evaluate clinically because of the great amount of swelling that often accompanies these fractures. Postoperative radiographs are often the only way to assess the adequacy of the reduction. This article describes a technique that uses the C-Arm to quickly and accurately evaluate the reduction intraoperatively so that appropriate corrections can be made. A case report of a patient who suffered a w-shaped depressed fracture of the left zygomatic arch and zygomatico-maxillary complex fracture is presented.
A bony lid technique is described for enucleation of a large ameloblastic fibro-odontoma, encroaching on the left ramus of the mandible in a 5-year-old boy. There was excellent postoperative remodelling and the patient has been followed up for a period of two years. The advantages of the technique are discussed, with a note on the lesions that may be treated by this method.
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A case of an 8-year-old boy who met with a road traffic accident causing trauma to the body and face and extrusion of the upper central incisors is reported. Laceration, oedema and limited mouth opening indicated the use of general anesthesia. During intubation the right central was avulsed accidentally and the left central further luxated and rotated. The avulsed central was reimplanted and the other one derotated and stabilised with orthodontic wire and brackets. Twelve weeks later the patients teeth were firm, immobile, radiographically normal and responded positively to vitality test.
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