| Heister, Lorenz | <person> German anatomist. Lived: 1683-1758. See: Heister's diverticulum, Heister's valve. (05 Mar 2000) |
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| Lorenz | Adolf, Austrian surgeon, 1854-1946. See: Lorenz' sign. (05 Mar 2000) |
| Lorenz' sign | <clinical sign> An obsolete sign: stiffness of the thoracic spine in early pulmonary tuberculosis. (05 Mar 2000) |
| vertical osteotomy | An oral surgical procedure similar to sliding oblique osteotomy. (05 Mar 2000) |
| C sliding osteotomy | An extraoral osteotomy in the shape of a "C" performed bilaterally in the mandibular rami for the correction of retrognathia and/or apertognathia. (05 Mar 2000) |
| sagittal split mandibular osteotomy | An intraoral surgical procedure for correction of retrognathism, apertognathia, and prognathism; the mandibular rami and posterior body are sectioned in the sagittal plane. (05 Mar 2000) |
| segmental alveolar osteotomy | An intraoral surgical procedure in which segments of alveolar bone containing teeth are sectioned between, and apically to, the teeth for the repositioning of the alveolus and teeth; it may be maxillary or mandibular, and may be combined with ostectomy. (05 Mar 2000) |
| horizontal osteotomy | An osteotomy performed intraorally for genioplasty; the inferior aspect of the anterior mandible is advanced or retruded by movement of the free segment. (05 Mar 2000) |
| sliding oblique osteotomy | An oral surgical procedure in which the mandibular ramus is cut vertically from the sigmoid notch to the angle to facilitate posterior repositioning of the mandible in correction of mandibular prognathism; it may be performed extraorally or intraorally, and is similar to vertical osteotomy. (05 Mar 2000) |
| osteotomy | <procedure, surgery> The surgical cutting of a bone. Origin: Gr. Temnein = to cut (18 Nov 1997) |
| osteotomy, le fort | Transverse sectioning and repositioning of the maxilla. There are three types: le fort I osteotomy for maxillary advancement or the treatment of maxillary fractures; le fort II osteotomy for the treatment of maxillary fractures; le fort III osteotomy for the treatment of maxillary fractures with fracture of one or more facial bones. Le fort III is often used also to correct craniofacial dysostosis and related facial abnormalities. (12 Dec 1998) |
| Le Fort osteotomy | An osteotomy often done to correct a maxillary skeletal deformity. Classified as Le Fort osteotomy I, II, or III, depending upon the location. (05 Mar 2000) |