Herbert Screw vs Lag Screw Fixation in Anterior Mandibular Fracture Treatment

Comparative Study of Herbert Screw vs Lag Screw Fixation in Anterior Mandibular Fracture Treatment (a Clinical and Radiographic Study)

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04719325

Enrollment

Registered

2021-01-22

Start date

2019-10-18

Completion date

2020-06-15

Last updated

2021-01-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mandibular Fractures

Brief summary

14 patients having recent anterior mandibular fracture divided into two groups. Group A has 6 patients and treated using Herbert bone screw, and group B has 6 patients and treated using lag screw. Clinical follow-up was conducted after 24-hours, one, four, six, and twelve weeks. In addition, a radiographic investigation was performed after twelve weeks to estimate the mean bone density across the fracture line.

Interventions

OTHERHerbert screw

Fracture line exposed through intra-oral approach. bone reduction into proper anatomical occlusion and application of Herbert screw

OTHERLag screw

Fracture line exposed through intra-oral approach. bone reduction into proper anatomical occlusion. Application of either lag screw according to Champy's osteosynthesis lines.

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

20 Years to 60 Years

Healthy volunteers

Inclusion criteria

* Patients suffering from recent, uninfected anterior mandibular fracture. * Adult patients from 20-60 years old with no gender predilection agreed to present for follow-up visits for a minimum postoperative period of 3 months. * Fracture that demands open reduction and internal fixation.

Exclusion criteria

* Medically compromised patients contradicting operations. * Existence of infection at the fracture line. * Pathological fracture. * An old fracture. * Completely edentulous patient

Design outcomes

Primary

Measure	Time frame	Description
Change in bone density	baseline and 3 months	By using digital orthopantomogram bone density was evaluated
change in pain scores	24 hours, 1 week , 4 Weeks and 6 weeks	assessed through a 10-point Visual Analogue Scale (VAS). (0-1= None, 2-4= Mild, 5-7= Moderate, 8-10= Severe)
presence of Intra-fragmentary mobility	24 hours	assessed by bi-manual palpation across the fracture site

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026