title: Extra-oral implants: insertion per- or post-ablation?
abstract: Although the benefit of extra-oral implants in the reconstruction of maxillofacial oncological defects is undisputable, some relevant issues need to be clarified. The purpose of this retrospective study was to evaluate the relationship between implants placed during ablation (DA-implants) and after ablation (AA-implants) of the tumor with respect to implant survival. In total, 103 implants were assessed: 44 nasal implants (17 patients) and 59 orbital implants (18 patients). All patients received their implant-retained maxillofacial epithesis between 1997 and 2010, with a mean follow-up of 35 months (range 8-156 months). The survival rate of DA-implants was 90.0% for the orbital region and 93.5% for the nasal region. The survival rate of the AA-implants for the orbital and the nasal region was 82.8% and 61.5%, respectively. This study shows a significant higher survival rate of extra-oral implants placed during ablative surgery compared to implants in a later stage (p=0.044), thereby stressing the importance of installing extra-oral implants during the ablative surgical session.
authors.affiliation: Dept. of Oral and Maxillofacial Surgery 590, Radboud University Nijmegen Medical Center, PO Box 9101, NL 6500 HB Nijmegen, The Netherlands. j.dings@mka.umcn.nl
authors.forename: J P J
authors.initials: JP
authors.lastname: Dings
authors.forename: T J
authors.initials: TJ
authors.lastname: Maal
authors.forename: M S
authors.initials: MS
authors.lastname: Muradin
authors.forename: K J
authors.initials: KJ
authors.lastname: Ingels
authors.forename: B J
authors.initials: BJ
authors.lastname: Klevering
authors.forename: R
authors.initials: R
authors.lastname: Koole
authors.forename: M A
authors.initials: MA
authors.lastname: Merkx
authors.forename: G J
authors.initials: GJ
authors.lastname: Meijer
mesh_terms: D055011:Ablation Techniques; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005500:Follow-Up Studies; D006258:Head and Neck Neoplasms / Q000601:surgery*; D006801:Humans; D008297:Male; D019931:Maxillofacial Prosthesis Implantation / Q000379:methods*; D008875:Middle Aged; D009666:Nose / Q000601:surgery*; D020273:Orbital Implants / Q000706:statistics & numerical data; D011379:Prognosis; D019736:Prostheses and Implants / Q000706:statistics & numerical data*; D011475:Prosthesis Failure; D019651:Plastic Surgery Procedures / Q000379:methods*; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult