Arginine and Nitric Oxide (NO) Early Prognostic Markers for Non-union Development

NCT ID: NCT01070576

Last Updated: 2010-04-07

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

UNKNOWN

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2010-03-31

Brief Summary

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Objective: Primary objective is to study the arginine-NO metabolism during fracture healing and dysfunctional fracture healing. Secondary objective: to investigate if differences or decreased arginine and NO concentrations in bone healing form a prognostic marker for non-union development Hypothesis: Early detection of disturbances in the Arginine and nitric oxide metabolism during fracture healing are a good prognostic marker for non-union development.

Study design: Prospective observational study. Study population: All acute fracture patients (age \>18 years), with a fracture of the tibia or femur attending the Department of General Surgery, to investigate the Arginine -NO metabolism during normal fracture healing and possible dysfunctional healing. In total 100 patients will be included during this study.

Main study parameters/endpoints:

Primary endpoints are arginine and Nitric Oxide levels in the plasma during normal and dysfunctional fracture healing the bone in patients with and without non-union Secondary endpoints are levels of Nitric Oxide citrulline, ornithine and other amino acids in bone and in plasma Other parameters: baseline demography details will be obtained, including possible confounders, such as bodyweight, smoking, alcohol abuse, which may interfere with the outcome of this study.

Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The extent of the burden and risk associated with participation is expected to be low during this study. In total, 7 blood samples will be taken during this study (45ml, in total). During the primary (and possible secondary) surgical procedure, bone debris will be taken. Bone debris is usually discarded but will be used for analysis in this study. There is no extra surgical procedure necessary to obtain the bone debris.

Detailed Description

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Conditions

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Fracture Healing Atrophic Non Union Development Hypertrophic Non Union Development

Study Design

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Study Time Perspective

PROSPECTIVE

Study Groups

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normal fracture healing

group in which normal fracture healing has occured

no intervention

Intervention Type OTHER

no intervention

atrophic

patients in which an atrophic non-union occured

no intervention

Intervention Type OTHER

no intervention

hypertrophic

patients in which a hypertrophic non-union occured

no intervention

Intervention Type OTHER

no intervention

Interventions

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no intervention

no intervention

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Written informed consent
* Age \> 18 years
* Patient with a fracture of the femur or tibia for which a surgical procedure providing bone debris is performed as therapy

Exclusion Criteria

* Patients with another bone fracture in their recent medical history
* Infectious complications, such as infected pseudo-arthrosis
* Use of chronic corticosteroids or nitrovasodilating medication
* Patients with severe metabolic disturbances (liver, and renal insufficiency, diabetes).
* Patients with metastases, haematological malignancies or chemotherapy
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Maastricht University Medical Center

OTHER

Sponsor Role lead

Responsible Party

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MUMC+

Principal Investigators

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Martijn Poeze, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Maastricht University Medical Center

Locations

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Maastricht University Medical Center

Maastricht, , Netherlands

Site Status RECRUITING

Countries

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Netherlands

Central Contacts

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Martijn Poeze, MD, PhD

Role: CONTACT

+31433876543 ext. 6262

Nina Wijnands, MD, PhD-student

Role: CONTACT

+31 43 3881497 ext. 9115

Facility Contacts

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Martijn Poeze, MD, PhD

Role: primary

+31433871956 ext. 6262

Nina Wijnands, MD, PhD-student

Role: backup

+3143 3881497 ext. 9115

Other Identifiers

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MEC-09-2-123

Identifier Type: -

Identifier Source: org_study_id

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