title: Horseshoe Le Fort I osteotomy: an augmentation technique for the severely atrophied maxilla--an eight-year follow-up.
abstract: Twenty-three patients (19 female, 4 male; 37-69 years old; mean age, 52 years) underwent horseshoe Le Fort I osteotomy from 1989 to 1997; 178 iMZ implants were placed either simultaneously by horseshoe Le Fort I osteotomy (76 implants) or in a second operation 6-12 months later (102 implants). Removable overdentures were made. Twenty-two patients wear an implant-borne overdenture; 1 patient refused an additional operation for placing implants and received a conventional, mucosally supported, upper-jaw prosthesis. The anteroposterior relationship satisfactorily improved in all patients, allowing for class I occlusion. All patients were satisfied with the aesthetic results, denture retention, speech, and mastication. Nevertheless, we lost 8 implants in 1 patient. We placed 178 endosteal implants in 22 patients; 8 were lost in 1 patient, and 7 more implants have been lost in 5 patients.
authors.affiliation: University Clinic for Maxillofacial Surgery, Medical School, University of Vienna, Austria.
authors.forename: S
authors.initials: S
authors.lastname: Gössweiner
authors.forename: F
authors.initials: F
authors.lastname: Watzinger
authors.forename: K L
authors.initials: KL
authors.lastname: Ackerman
authors.forename: R
authors.initials: R
authors.lastname: Ewers
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D001284:Atrophy / Q000601:surgery; D016025:Bone Transplantation / Q000379:methods; D003758:Dental Implantation, Endosseous / Q000379:methods; D019094:Dental Prosthesis, Implant-Supported; D003828:Denture, Overlay; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008437:Maxilla / Q000473:pathology* / Q000601:surgery*; D008875:Middle Aged; D019340:Osteotomy, Le Fort / Q000379:methods*; D013997:Time Factors