1. Is the prevention of condylar sag with maxillomandibular fixation the key to functional reconstruction of a mandibular disarticulation resection?
- Author
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Nicholas Callahan, Manan Patel, Donita Dyalram, and Joshua E. Lubek
- Subjects
Tooth Ankylosis ,Mandibular Condyle ,Mandible ,Free Tissue Flaps ,Jaw Fixation Techniques ,Pathology and Forensic Medicine ,Mandibular Neoplasms ,Disarticulation ,Humans ,Radiology, Nuclear Medicine and imaging ,Dentistry (miscellaneous) ,Surgery ,Mandibular Reconstruction ,Oral Surgery ,Follow-Up Studies ,Retrospective Studies - Abstract
The aim of this study was to evaluate the long-term outcomes of the use of the free fibula flap for reconstruction with mandibular disarticulation resections.A retrospective chart cohort review was performed in patients reconstructed with a fibula free flap for a mandibular disarticulation resection at an academic tertiary care institution over a 5-year period.Twenty-four patients were included in the study. Fourteen patients were treated for benign pathology, and 10 cases were malignant. Average follow-up was 20 months. Virtual surgical planning/3-dimensional models were used in all cases. Maxillomandibular fixation (MMF) with surgical wires was used in 65% (n = 13/20) of the dentate patients. Average maximum interincisal opening was 28.2 mm in patients receiving radiation and 38.7 mm in the nonradiated group (P = .01). No patient developed joint ankylosis. Neocondyle position was an average of 11.7 mm from condylar fossa, radiographically. Seventeen of the dentate patients (85%) had reproducible class I occlusion. Occlusion was superior in patients placed into MMF compared with those with elastics or no MMF (P = .06) and independent of the position of the neocondyle (P = .19).The vascularized fibula flap can be used to provide functional reconstruction of the mandibular condyle defect. The use of at least 2 weeks of MMF maintains an adequate occlusion irrespective of the fibula-glenoid fossa position. The neocondyle does not need to directly abut the articular disc or fossa for adequate functional outcomes.
- Published
- 2022