Dynaloc for Treatment of Femoral Neck Fractures

October 19, 2015 updated by: Lars C. Borris, Aarhus University Hospital

Dynaloc vs. Multiple Cancellous Screws for Treatment of Femoral Neck Fractures

A prospective, randomized study comparing the effectiveness of a new system, Dynaloc compared with three cancellous screws, for osteosynthesis of femoral neck fractures

Study Overview

Status

Terminated

Study Type

Interventional

Enrollment (Anticipated)

150

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Aarhus, Denmark, Dk-8000
        • Aarhus University Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years to 110 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult men or women (see age specifications below) with subcapital femoral neck fractures (stable or unstable) confirmed with anteroposterior and lateral hip radiographs, computed tomography, or magnetic resonance imaging (MRI).
  • Patients between 50 and 69 years of age with any Garden type femoral neck fracture
  • Patients older than 70 years of age with femoral neck fractures Garden type I and II
  • Patients older than 70 years of age with a femoral neck fracture Garden types III and IV and contraindication to hemiarthroplasty.
  • Operative treatment within 4 days (i.e., 72 hours) of presenting to the emergency room.
  • Patient was ambulatory prior to fracture, though they may have used an aid such as a cane or a walker.
  • Anticipated medical optimalization of the patient for operative fixation of the hip.
  • Provision of informed consent by patient or proxy.
  • Low energy fracture (defined as a fall from standing height).
  • No other major trauma.

Exclusion Criteria:

  • Associated major injuries of the lower extremity (i.e., ipsilateral or contralateral fractures of the foot, ankle, tibia, fibula, knee, or femur; dislocations of the ankle, knee, or hip; or femoral head defects or fracture).
  • Retained hardware around the affected hip.
  • Abnormal opposite hip making end-point evaluation impossible
  • Infection around the hip (i.e., soft tissue or bone).
  • Patients with disorders of bone metabolism other than osteoporosis (i.e., Paget's disease, renal osteodystrophy).
  • Moderate or severe cognitively impaired patients (i.e., Six Item Screener with three or more errors).
  • Patients with Parkinson's disease (or dementia or other neurological deficit) severe enough to increase the likelihood of falling or severe enough to compromise rehabilitation.
  • Likely problems, in the judgment of the investigators, with maintaining follow-up. We will, for example, exclude patients with no fixed address, those who report a plan to move out of town in the next year, or intellectually challenged patients without adequate family support.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: Cancellous screws
Patients in this group are having osteosynthesis with three screws
ACTIVE_COMPARATOR: Dynaloc
Patients in this group are having osteosynthesis with Dynaloc (three screws fixed in a small plate)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Shortening of the femoral neck
Time Frame: 1 year
1 year

Secondary Outcome Measures

Outcome Measure
Time Frame
Reoperation
Time Frame: 1 year
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2014

Primary Completion (ACTUAL)

October 1, 2015

Study Completion (ACTUAL)

October 1, 2015

Study Registration Dates

First Submitted

January 7, 2014

First Submitted That Met QC Criteria

January 7, 2014

First Posted (ESTIMATE)

January 8, 2014

Study Record Updates

Last Update Posted (ESTIMATE)

October 20, 2015

Last Update Submitted That Met QC Criteria

October 19, 2015

Last Verified

October 1, 2015

More Information

Terms related to this study

Other Study ID Numbers

  • 1-10-72-362-13

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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