THE USE OF HERBERT CANNULATED BONE SCREW IN THE TREATMENT OF MANDIBULAR FRACTURES (A CLINICAL AND RADIOGRAPHIC STUDY)

Document Type : Original Article

Authors

1 Instructor at the Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Alexandria University, Alexandria Egypt.

2 Professor of Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Alexandria University, Alexandria Egypt

Abstract

INTRODUCTION: Maxillofacial trauma is in querulous expansion by clinical and biomechanical studies in order to enhance the wellestablished techniques and to utilize new materials, all are directed towards the reduction in the immobilization period and enhancement of the rigid fixation. Since 1984 the cannulated Herbert Bone Screw (HBS) proves to be a successful mean of fracture fixation in various fields of orthopaedic surgery, nonetheless with no sufficient evidence about its performance in the maxillofacial trauma field. OBJECTIVES:The aim of the study was to evaluate clinically and radiographically the performance of HBS in the treatment of mandibular fractures. MATERIALS AND METHODS: Eleven patients with non-comminuted recent mandibular fracture were treated using Herbert bone screw. Clinical follow up was conducted after 24-hours, one week, four weeks, six weeks and twelve weeks. Also, a radiographic investigation was performed immediately postoperative and after twelve weeks to estimate the mean bone density across the fracture line. RESULTS: By the end of the follow up period, all cases showed normal lower lip sensation, normal occlusal and intercuspal relation, a statistically significant (P value < 0.001) decrease in level of pain intensity score based on the Visual Analogue Scale (VAS) and an uneventful wound healing with no records of developed infection. Mean bone density after twelve weeks showed a statistically significant (p < 0.001) increase in its values when compared to the immediately postoperative values. CONCLUSIONS: This study deduced that the use of Herbert screws results in a predictable and satisfactory outcome, in terms of achieving uneventful wound healing and high postoperative mean bone density values.

Keywords

References

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