Biomaterial Database

Screw osteosynthesis compared with wire osteosynthesis in advancement genioplasty: a retrospective study of skeletal stability. 1997

J P Reyneke, and T Johnston, and W J van der Linden

Division of Maxillofacial and Oral Surgery, University of the Witwatersrand, Johannesburg, South Africa.

OBJECTIVE To compare the skeletal stability of wire and screw fixation after advancement genioplasty. METHODS Retrospective study. METHODS Teaching hospital and private practice, South Africa. METHODS 40 Patients who required advancement genioplasty, 20 in each group. METHODS Advancement genioplasty measurements made on cephalometric radiographs before and immediately after operation, and at least 6 months later. METHODS Comparison of horizontal and vertical measurements. RESULTS In the screw (rigid) group mean horizontal advancement was 6.3 mm followed by a relapse of 0.3 mm during the follow up period. The corresponding figures for the wire (non-rigid) group were 5.8 and 0.5 mm. The two differed significantly in the degree of vertical change but the result is clinically unimportant. There was no difference in the degree of horizontal change. CONCLUSIONS There was no difference in skeletal stability between the two groups.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D010027	Osteotomy	The surgical cutting of a bone. (Dorland, 28th ed)	Osteotomies
D011859	Radiography	Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film).	Radiology, Diagnostic X-Ray,Roentgenography,X-Ray, Diagnostic,Diagnostic X-Ray,Diagnostic X-Ray Radiology,X-Ray Radiology, Diagnostic,Diagnostic X Ray,Diagnostic X Ray Radiology,Diagnostic X-Rays,Radiology, Diagnostic X Ray,X Ray Radiology, Diagnostic,X Ray, Diagnostic,X-Rays, Diagnostic
D012008	Recurrence	The return of a sign, symptom, or disease after a remission.	Recrudescence,Relapse,Recrudescences,Recurrences,Relapses
D001863	Bone Screws	Specialized devices used in ORTHOPEDIC SURGERY to repair bone fractures.	Bone Screw,Screw, Bone,Screws, Bone
D001864	Bone Wires	Steel wires, often threaded through the skin, soft tissues, and bone, used to fix broken bones. Kirschner wires or apparatus also includes the application of traction to the healing bones through the wires.	Kirschner Wire,Kirschner Wires,Bone Wire,Wire, Bone,Wire, Kirschner,Wires, Bone,Wires, Kirschner
D002508	Cephalometry	The measurement of the dimensions of the HEAD.	Craniometry
D002680	Chin	The anatomical frontal portion of the mandible, also known as the mentum, that contains the line of fusion of the two separate halves of the mandible (symphysis menti). This line of fusion divides inferiorly to enclose a triangular area called the mental protuberance. On each side, inferior to the second premolar tooth, is the mental foramen for the passage of blood vessels and a nerve.	Mental Region,Mentum
D005260	Female		Females
D005500	Follow-Up Studies	Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.	Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup