title: Horseshoe Le Fort I osteotomy in combination with endosteal implants--a median-term follow-up study.
abstract: Fourteen patients with Class VI resorption of the maxilla were treated with horseshoe Le Fort I osteotomy. In 11 cases, the procedure was followed by the placement of endosteal implants. In six patients, simultaneous placement of implants was carried out, while in five patients this was done in a second procedure. Ten patients wore their implant-supported dentures. In one patient, 5/8 implants were lost due to nonintegration. Three patients lost one implant each. The total number of implants placed was 76, and the survival rate of the implants was 88.1%. In the one-step procedure (n = 42), the survival rate was 84.8%; in the two-step procedure (n = 34), 92.3%. In comparison of the one-step to the two-step procedure, there was no statistically significant difference (P > 0.11) between the amount of marginal peri-implant bone loss and the condition of the peri-implant soft tissues as measured 2 years after implantation.
authors.affiliation: University Clinic for Maxillofacial Surgery, Medical School, University of Vienna, Austria.
authors.forename: F
authors.initials: F
authors.lastname: Watzinger
authors.forename: R
authors.initials: R
authors.lastname: Ewers
authors.forename: W
authors.initials: W
authors.lastname: Millesi
authors.forename: A
authors.initials: A
authors.lastname: Kirsch
authors.forename: C
authors.initials: C
authors.lastname: Glaser
authors.forename: K L
authors.initials: KL
authors.lastname: Ackermann
mesh_terms: D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000601:surgery*; D000540:Alveolar Ridge Augmentation / Q000379:methods; D016025:Bone Transplantation; D003758:Dental Implantation, Endosseous / Q000379:methods*; D005260:Female; D006801:Humans; D015993:Life Tables; D008297:Male; D008439:Maxillary Diseases / Q000601:surgery*; D008875:Middle Aged; D019340:Osteotomy, Le Fort / Q000379:methods*; D010159:Palate / Q000601:surgery; D016019:Survival Analysis; D016896:Treatment Outcome