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The International Journal of Oral & Maxillofacial Implants
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Int J Oral Maxillofac Implants 35 (2020), No. 1     27. Jan. 2020
Int J Oral Maxillofac Implants 35 (2020), No. 1  (27.01.2020)

Page 160-166, doi:10.11607/jomi.7670, PubMed:31184634


Is Implant Placement Performed at the Same Surgical Time as Orbital Exenteration a Viable Procedure?
Martel, Arnaud / Oberic, Aurelie / Bellini, Lara / Almairac, Fabien / Moulin, Alexandre / Hamedani, Mehrad
Purpose: To assess the efficacy and safety of bone-anchored dental implant placement at the same time as orbital exenteration compared with delayed implant placement.
Materials and Methods: A retrospective comparative study was conducted in a single tertiary care center between December 2003 and December 2017. Patients who underwent bone-anchored implant placement at the same time as orbital exenteration were included (group 1) and compared with patients who underwent delayed implant placement (group 2). The main outcome was the 1-year success rate of implant osseointegration. The secondary outcomes were the 5-year success rate of osseointegration, postoperative complications, and time between orbital exenteration and prosthesis placement.
Results: Ten and 11 patients (21 and 22 implants) with a mean follow-up of 50.2 and 48.5 months were included in groups 1 and 2, respectively. Patients in group 1 were significantly older (69.7 vs 61.2 years, P = .026). No significant differences were found between both groups regarding tumor type and location, prior treatments, smoking status, and postoperative radiation beam radiotherapy. The 1- and 5-year success rates of osseointegration were 95.5% and 93.3% in group 1, and 100% and 100% in group 2, respectively (P = .488 and P = .450 between both groups). One implant did not osseointegrate in group 1 due to osteitis. Ethmoidal fistula was the most common postoperative complication found in both groups (P = .670). The mean time between orbital exenteration and episthesis placement was 8 (3 to 14) vs 11 (3 to 15) months in groups 1 and 2, respectively (P = .467).
Conclusion: Placing implants at the same time as orbital exenteration is a viable procedure. It reduces surgical morbidity and allows placement of implants in a nonirradiated area.

Keywords: episthesis, implant placement, one step, orbital exenteration, osseointegration