Abstract
Objectives: To report on the use of lateral transport osteogenesis in cancer patients after maxillo/mandibular resections and on the implant survival rate in the generated bone Material and Methods: Four patients treated using lateral transport osteogenesis entered this descriptive study and were retrospectively studied (mean age 55; range 41-62). Results: Reconstruction of segmentary defects after surgical and radiological cancer treatment on maxilla and mandible was achieved. No relevant intra- or post-operative complications occurred. No differences on implant survival were observed between patients who had received radiotherapy and those who had not. Conclusions: This approach can be considered a recommendable reconstructive option after oral cancer treatment –including radiotherapy- particularly for high-surgical-risk, collaborative patients. Key words:Distraction osteogenesis, oral cancer, radiotherapy, reconstruction, dental implants.
Highlights
Many maxillofacial tumours are diagnosed at advanced stages with frequent mandible/maxillary involvement, resulting in marginal or segmental resection with adjuvant radiotherapy
This paper reports on the use of lateral transport osteogenesis in cancer patients who have undergone maxillo/ mandibular resections and on the implant survival rate in the generated bone
Implants placed in maxilla after radiotherapy have proved a poor survival rate (59%), [9] studies on this situation are so scarce that no definitive conclusions can be drawn
Summary
Many maxillofacial tumours are diagnosed at advanced stages with frequent mandible/maxillary involvement, resulting in marginal or segmental resection with adjuvant radiotherapy. The vascularised free-osseous flap (VFOF) is the current gold standard for reconstruction in these situations [1] this procedure is far from ideal for patients with increased surgical risk and for those requiring an adequate soft tissue quality before implant insertion, as VFOF results in a too thick overlying soft tissue without peri-implant attached gingival [1,2]. Osteogenic distraction procedures, like transport-discdistraction-osteogenesis (TDDO), may solve these shortcomings as no statistically significant differences could be found between autogenous bone and distracted bone sites in terms of stability and implant survival rate [3,4,5,6]. This paper reports on the use of lateral transport osteogenesis in cancer patients who have undergone maxillo/ mandibular resections and on the implant survival rate in the generated bone
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