Department of Dentistry, Oral and Maxillofacial Plastic and Reconstructive Surgery, Faculty of Medicine, Yamagata University, Yamagata, Japan.
J Oral Implantol. 2023 Aug 1;49(4):361-364. doi: 10.1563/aaid-joi-D-21-00001.
A particulate cancellous bone and marrow (PCBM) graft combined with titanium (Ti-) mesh tray has become one of the most popular mandibular reconstruction methods. The technique has been applied to the mandibular discontinuity defects after segmental mandibulectomy. To the best of our knowledge, there are no reports on using the technique after hemimandibulectomy, during which a wide mandibular resection, including the condyle, is performed. Here, we first report a case of mandibular reconstruction after hemimandibulectomy, using a plate and soft-tissue free flap, followed by a Ti-mesh and PCBM harvested from the bilateral posterior ilia, which was successful. This case report first revealed how bone resorption occurred clinically in mandibular reconstruction using PCBM and Ti-mesh tray after hemimandibulectomy. We also revealed the high predictability of the mandibular reconstruction using PCBM and Ti-mesh tray after hemimandibulectomy. Our report also provides a guiding principle to overcome the limitation of mandibular reconstruction using PCBM and Ti-mesh tray after hemimandibulectomy. However, our manuscript has limited evidence, being a case report.
颗粒松质骨和骨髓(PCBM)移植物与钛(Ti)网托盘相结合已成为最受欢迎的下颌骨重建方法之一。该技术已应用于节段性下颌骨切除术后的下颌骨不连续缺损。据我们所知,尚无关于在半下颌骨切除术后使用该技术的报道,在此过程中会进行广泛的下颌骨切除术,包括髁突。在这里,我们首次报道了一例使用钢板和软组织游离皮瓣进行半下颌骨切除术后下颌骨重建的病例,随后从双侧髂后取出 Ti 网和 PCBM,重建成功。该病例报告首次揭示了 PCBM 和 Ti 网托盘用于半下颌骨切除术后下颌骨重建时临床中骨吸收的情况。我们还揭示了 PCBM 和 Ti 网托盘用于半下颌骨切除术后下颌骨重建的高度可预测性。我们的报告还提供了克服 PCBM 和 Ti 网托盘用于半下颌骨切除术后下颌骨重建局限性的指导原则。然而,由于这是一篇病例报告,我们的研究证据有限。