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Surgical Outcome of Type II Odontoid Fracture, Harms Technique

NCT ID: NCT03768843

Last Updated: 2018-12-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

12 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-01-01

Study Completion Date

2018-01-01

Brief Summary

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Cervical trauma is a common cause of disability following spinal cord injury, especially in athletic populations. The biomechanics in the atlantoaxial joint carry more than 50% of the rotational movement which can be affected in transverse ligament tear associated with odontoid fracture type II. Odontoid fracture type II considered an unstable fracture with a high rate of non-union in conservative treatment. Limitation of the odontoid screws in some cases gives the chance of posterior cervical fixation to have the superior role. Use of polyaxial screws in Harms technique gives the best results in maintaining the majority of the biomechanics.

Purpose: our aim in this study to evaluate Harms technique in those patients regarding pain improvement and restoration of the motor power and to report the complications.

Study design: A retrospective case series study. We Used the Frankel grading system to evaluate the postoperative neurological state.

Detailed Description

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After approval of Research Ethics Committee, twelve patients with post-traumatic odontoid fracture type II were scheduled in our Neurosurgery department at Sohag University Hospital for atlantoaxial fusion using polyaxial C1 lateral mass and C2 pedicle screws between January 2015 and January 2018.

Conditions

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Tramatic Odontoid Fracture

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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traumatic odontoid fracture

C1 C2 fusion screws

Group Type OTHER

Harms technique

Intervention Type PROCEDURE

Atlantoaxial fusion

Interventions

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Harms technique

Atlantoaxial fusion

Intervention Type PROCEDURE

Other Intervention Names

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C1 C2 fusion

Eligibility Criteria

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Inclusion Criteria

1. C1-C2 displacement that needs intra-operative reduction
2. Short neck not suitable for anterior odontoid screw
3. Osteoporotic patients
4. Odontoid fracture associated with transverse ligament tear suspected.
5. Oblique line of fracture
6. Failure of union after conservative treatment.

Exclusion Criteria

* Associated spinal fractures
* Other comorbidities
Minimum Eligible Age

16 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Sohag University

OTHER

Sponsor Role lead

Responsible Party

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ahmed salaheldin mohammed saro

Assistant professor of neurosurgery

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Hisham A Elsharkawy, Professor

Role: STUDY_DIRECTOR

Sohag faculty of medicine

Locations

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Ahmed Salaheldin Mohammed Saro

Sohag, , Egypt

Site Status

Countries

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Egypt

Other Identifiers

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Sohag3

Identifier Type: -

Identifier Source: org_study_id