A comparison of piezo surgery osteotomies with conventional internal osteotomies as performed by trainee surgeons: a cadaveric study.

INTRODUCTION: Aesthetic rhinoplasty remains a challenging procedure with high expectations and narrow tolerance for errors. Considerable training is required to achieve controlled and reliable results. Use of the Piezotome is gaining popularity for performing the nasal osteotomies, a key step in rhinoplasty, where it is reported to improve precision and predictability and to keep tissue damage to a minimum. We compare the outcomes of conventional osteotomy techniques to piezosurgery in human cadavers as undertaken by surgical trainees. MATERIALS AND METHODS: Seven human cadavers were used and a total of 14 osteotomies were performed. Conventional osteotomies and piezosurgery were carried out each on one side of the cadaver. A number of fragments and a blinded assessment of the accuracy of the osteotomy compared with the preprocedure skin markings were carried out by two experienced rhinoplasty surgeons. The Mann-Whitney test for statistical analysis was used. RESULTS: The mean number of fragments was 1.57 in the piezosurgery osteotomy and 2.14 using conventional osteotomies. Four of seven piezosurgery osteotomies achieved an accuracy within 1mm. The conventional osteotomies as performed by the trainees showed a significant mismatch of more than 3mm in three of seven of cases. Accuracy within 1mm was achieved in one of seven cases. DISCUSSION: Piezosurgery offers a safe, reliable and precise method of performing lateral nasal osteotomies. This human cadaver study shows a high accuracy of osteotomy and fewer comminuted fractures using this technique compared with conventional osteotomy techniques.

Paediatric dento-facial infections - a potential tool for identifying children at risk of neglect?

Introduction: Child neglect has a significant impact on children's physical and emotional health and development with lifelong consequences. Dental decay can lead to maxillofacial space infections which can have life-threatening complications and may indicate that a child has suffered dental neglect. Aims and method: In this retrospective audit, we reviewed children below sixteen years who were admitted under oral and maxillofacial surgery for incision and drainage of a dental/facial abscess, under general anaesthesia, between January 2015 and January 2017, to understand if they had experienced dental neglect. We also assessed if they were or had been known to Children's Social Services (SS) before hospital admission. Results: Twenty-seven children were included in the study, eleven children (40%), were known to social services (SS). On average 3.2 teeth were extracted with an average hospital stay of 2.5 days. Discussion: Our data indicate that a significant number of children admitted for maxillofacial space infection are already known to social services. Conclusion: Our recommendation is that all children admitted with dental/maxillofacial space infections, where dental neglect may be present, should be discussed with the local safeguarding team.

Complete spontaneous regression of a metastatic melanoma of the mandible: a case report and follow-up recommendations.

Regression of metastatic melanoma is very rare and occurs in only 0.23% of cases. Metastasis to the oral cavity is particularly uncommon and accounts for only 1-3% of all oral malignancies. This report presents a case of spontaneous and complete regression of a metastatic melanoma in the mandibular ramus. The patient remains asymptomatic more than 2 years after diagnosis. The patient was followed up regularly. It is recommended that further surveillance imaging be performed in asymptomatic patients following discussion with the surgical and oncological teams. This type of surveillance, together with new systemic treatments, is advocated due to its potential to increase long-term survival even after relapse.