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Induced Membranes for Segmental Mandibular Reconstruction: Case Series and Technique Review
Bret Waligora1, John C Neilson2, Carolyn Brookes3
1Former Resident, Oral and Maxillofacial Surgery, Medical College of Wisconsin, Milwaukee, WI.
Summary
The induced membrane technique (IMT) successfully reconstructed mandibular defects in 90% of patients, creating a neomandible for improved facial contour and dental implant restoration.
Area of Science:
- Oral and Maxillofacial Surgery
- Regenerative Medicine
- Biomaterials Engineering
Background:
- Segmental mandibular defects pose significant reconstruction challenges.
- Current methods may not fully restore form or function.
- The induced membrane technique (IMT) offers a novel approach.
Purpose of the Study:
- To describe the induced membrane technique (IMT).
- To present outcomes of IMT for segmental mandibular reconstruction.
- To evaluate the technique's efficacy in restoring mandibular form and enabling dental implants.
Main Methods:
- A staged IMT was used for 10 patients with segmental mandibular resections.
- A polymethylmethacrylate spacer was placed after resection.
- Particulate autograft from the ilium, with or without bone morphogenic protein, was used in the second stage.
Main Results:
- Bony continuity was achieved in 9 out of 10 patients.
- Reconstructed mandibles were designed for optimal form and future implant restoration.
- All patients received dental implants or had adequate bone for placement.
- Average hospital stay was 3.1 nights for the combined procedures.
Conclusions:
- The induced membrane technique is a viable method for segmental mandibular reconstruction.
- IMT allows for the creation of a neomandible with optimal form.
- The technique facilitates successful dental implant-based reconstruction.
