Peer-reviewed veterinary case report
Dogs with front jaw bone loss treated with new regenerative surgery
By Arzi, Boaz et al.·Published in Frontiers in veterinary science·2015·Department of Surgical and Radiological Sciences, United States·View original on PubMed →
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Original publication title: Regenerative Approach to Bilateral Rostral Mandibular Reconstruction in a Case Series of Dogs.
- Species:
- dog
Plain-English summary
A group of five dogs underwent surgery to fix large defects in their lower jaw after having parts of it removed due to tumors or other issues. The surgery involved using a special plate and a material that helps bone grow, along with advanced imaging techniques to plan the procedure. Most of the dogs healed well, regaining normal jaw function and having healthy gum tissue covering the area within a few months. Although two dogs had some complications that required additional treatment, they also healed successfully. Overall, this new surgical method showed promising results in restoring jaw stability and function in dogs.
People also search for: dog jaw surgery recovery · lower jaw reconstruction in dogs · dog mouth pain after surgery
Abstract
Extensive rostral mandibulectomy in dogs typically results in instability of the mandibles that may lead to malocclusion, difficulty in prehension, mastication, and pain of the temporomandibular joint. Large rostral mandibular defects are challenging to reconstruct due to the complex geometry of this region. In order to restore mandibular continuity and stability following extensive rostral mandibulectomy, we developed a surgical technique using a combination of intraoral and extraoral approaches, a locking titanium plate, and a compression resistant matrix (CRM) infused with rhBMP-2. Furthermore, surgical planning that consisted of computed tomographic (CT) scanning and 3D model printing was utilized. We describe a regenerative surgical technique for immediate or delayed reconstruction of critical-size rostral mandibular defects in five dogs. Three dogs had healed with intact gingival covering over the mandibular defect and had immediate return to normal function and occlusion. Two dogs had the complication of focal plate exposure and dehiscence, which was corrected with mucosal flaps and suturing; these dogs have since healed with intact gingival covering over the mandibular defect. Mineralized tissue formation was palpated clinically within 2 weeks and solid bone formation within 3 months. CT findings at 6 months postoperatively demonstrated that the newly regenerated mandibular bone had increased in mineral volume with evidence of integration between the native bone, new bone, and CRM compared to the immediate postoperative CT. We conclude that rostral mandibular reconstruction using a regenerative approach provides an excellent solution for restoring mandibular continuity and preventing mandibular instability in dogs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/26664933/