[Frontozygomatic dermoid cysts].

Dermoid cysts are embryological derivatives from soft tissues. They result from an ectodermic inclusion in the mesoderm, during the early embryonic development. These cysts have a slow development and are mostly encountered in the pediatric population.

Mechanical characterization of soft-tissue stiffness during mandibular distraction.

The purpose of this study was to determine the stiffness of mandibular soft tissues during mandibular distraction, from the perspective of improving distraction devices such as automated continuous distractors. Uncompleted osteotomy was performed on 11 fresh human hemimandibles via a greenstick fracture, to preserve the uplift of the internal periosteum of the mandibular corpus. In order to replicate continuous distraction, direct measurements were performed through a uniaxial quasi-static tensile test.

Management after fibula free flap necrosis in maxillofacial reconstruction.

Introduction: Few articles discuss the management of a free fibula flap (FFF) necrosis in maxillofacial reconstruction.

Material & Methods: Between 2005 and 2020, 170 FFF were used for maxillofacial reconstruction at the University Hospital of Caen, among which 16 cases suffered total necrosis and flap removal. The authors categorized these 16 cases into three groups based on the proposed salvage treatment and analyzed the post-operative follow-up, including complications, length of hospital stay and delay in radiotherapy.

How accurate is computer-assisted mandible gunshot wound management by patient-specific distraction device? Preoperative planning versus postoperative outcomes.

Gunshot wounds of the lower face are a challenge for the surgeon. Customized distraction osteogenesis (DO) is a well-established procedure for managing facial gunshot wounds. However, differences between the preoperative planning and postoperative outcomes are often noted.

[Improving the accuracy of the preoperative planning of mandibular osteogenic distraction by an external custom-made device].

Purpose: The aim of this study was to analyze the predictability of virtual surgical planning of mandibular reconstruction by osteogenic distraction (OD) with a custom-made osteogenic distraction device (DEOS) after ballistic trauma and to make recommendations to mitigate potential sources of discrepancy.

Methods: This retrospective study involved 12 patients who were victims of facial mandibular ballistic trauma and were reconstructed with osteogenic distraction with a DEOS device. Postoperative images were compared to the planned situation by means of several measures made in two plans : distraction plane and frontal plane.