What Researchers Did
This retrospective study evaluated the survival of 631 osseointegrated implants placed in 107 irradiated cancer patients over a 25-year period.
What They Found
Implants in irradiated cancer patients showed higher failure rates compared to non-irradiated controls, particularly after high-dose radiotherapy and a long time post-irradiation. The study found that using long fixtures, fixed retention, and adjuvant hyperbaric oxygen therapy decreased implant failures, with the highest failures observed in frontal bone, zygoma, mandible, and nasal maxilla.
What This Means for Canadian Patients
Canadian cancer patients who have undergone radiation therapy can still consider osseointegrated implants, given the overall favorable outcomes reported. However, they should discuss with their clinicians the increased risks of implant failure, especially with high-dose radiation or in certain facial regions, and explore strategies like hyperbaric oxygen therapy.
Canadian Relevance
This study was not conducted in Canada and does not have a direct Canadian connection.
Study Limitations
As a retrospective study, it is limited by its reliance on existing patient files and potential variability in treatment protocols over a 25-year period.