Objective-To compare outcomes following osteocutaneous radial forearm and fibula free flap reconstruction of lateral mandibular defects.Study Design-Retrospective case controlled study.
Setting-Two academic tertiary care centers.Subjects and Methods-Patients who underwent free flap reconstruction of lateral mandibular defects from 1999 to 2010 were classified into four groups based on type of reconstruction: 1) radial forearm swing (n = 8), 2) radial forearm with bar (n = 5), 3) osteocutaneous radial forearm (n = 73) and 4) fibula free flap reconstruction (n = 51). Patient characteristics, length of hospital stay, recipient and donor site complications, and long term outcomes including postoperative diet were evaluated.Results-The majority of patients were male (67%) and presented with advanced T-stage (73%) squamous cell carcinoma (93%) involving the alveolus (26%) retromolar trigone (21%) or oral tongue (25%). Median length of hospital stay was 8 days (range 4-22). The recipient site complication rate approached 34% and included infection (n=11), mandibular malunion (n=9), exposed bone or mandibular plates (n=11) and flap failure (n=5). Most patients demonstrated little to no trismus following reconstruction (81%) and were able to resume a regular or edentulous diet (61%). No difference in complication rates or postoperative outcomes was seen between osteocutaneous radial forearm and fibula free flap groups (P > 0.05). One patient underwent dental implantation following osteocutaneous radial forearm free flap reconstruction. No patients from the fibula free flap group underwent dental implantation.
Conclusion-The osteocutaneous radial forearm and fibula free flap provide equivalent wound healing and functional outcomes in patients undergoing lateral mandibular defect reconstruction.