The Glasgow splint: modification of occlusal splint for cleft osteotomies

Novel Custom Maxillary Disimpaction Splint

LeFort I, II, and III osteotomies are commonly used in complex craniofacial reconstruction. Patients requiring these procedures typically have a craniofacial cleft, other congenital craniofacial deformities, or severe facial trauma. Both the cleft and traumatized palate have poor bony support, which leads to possible complications when the disimpaction forceps are used during the downfracture of the maxilla. Such potential complications include trauma or formation of a fistula of the palatal, oral, or nasal mucosa; trauma to adjacent teeth; and fracture of the palate and alveolar bone. To help prevent these complications, we developed a custom disimpaction splint. The splint is designed to cover the palate and occlusal surfaces to increase retention and minimize splint movement during the maxillary downfracture portion of the surgical procedure. The base of the splint is fabricated from a two-layered biocryl material, and the palatal area is built with soft-cushion rebase material. This allows for a stable grip of the disimpaction forceps blades and provides protective coverage of the cleft, traumatized palate, or alveolar bone graft site during the downfracture. The custom maxillary disimpaction splint has been routinely used in our clinic from September 2019 to the present for LeFort osteotomies in patients with a compromised primary palate. No surgical complications related to the maxillary downfracture have been noted during this period of time. We conclude that the routine use of a custom maxillary disimpaction splint can result in improved outcomes and decreased complications of LeFort osteotomy procedures in patients with cleft and traumatized palate.