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Stapling Versus 8plate for Correction of Genu Valgus

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01528553
Recruitment Status : Unknown
Verified February 2012 by University of Aarhus.
Recruitment status was:  Active, not recruiting
First Posted : February 8, 2012
Last Update Posted : February 8, 2012
Information provided by (Responsible Party):
University of Aarhus

Brief Summary:

In children with excessive knock knees it may be necessary to use guided growth (small surgical procedure) so the child outgrows the condition before maturity. A new implant is on the market and the investigators compare this implant (8plate) with the old technique (staples) in a randomised setup.

The hypothesis is that the 8plate provides a faster correction rate and that this treatment is superior to stapling.

Condition or disease Intervention/treatment Phase
Deformity Genu Valgus Device: 8plate Device: Staples (Richards, Smith & Nephew) Not Applicable

Detailed Description:
Correcting angulating deformities of the lower limb is a subject of major interest in paediatric orthopaedics. Epiphysiodesis is the technique by which unilateral bone growth is stopped. Traditionally this has been performed with staple technique. The 8-plate technique is new and advocated because it is believed to reduce the risk of premature closure of the growth plate compared to stapling. The benefit of the 8-plate technique has not yet been proven in experimental or randomised clinical studies.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 20 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Care Provider)
Primary Purpose: Treatment
Official Title: Stapling Versus 8plate for Correction of Genu Valgus. A Randomised Clinical Study
Study Start Date : August 2009
Estimated Primary Completion Date : August 2012
Estimated Study Completion Date : August 2012

Arm Intervention/treatment
Active Comparator: Staples
Old implant type
Device: Staples (Richards, Smith & Nephew)
Staples (3 on each side)
Other Name: Richards staples, Smith & Nephew

Active Comparator: 8plate
New implant type
Device: 8plate
12 mm or 16 mm plate. 24 mm or 36 mm screw
Other Name: 8plate system

Primary Outcome Measures :
  1. Treatment time [ Time Frame: up to 104 weeks ]
    Will be followed with repeated clinical examinations until correction of deformity.

Secondary Outcome Measures :
  1. Radiological correction [ Time Frame: up to 104 weeks ]
    After correction of deformity.

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Ages Eligible for Study:   8 Years to 15 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Idiopathic genu valgus
  • At least one year of remaining growth

Exclusion Criteria:

  • Unilateral conditions

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01528553

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Aarhus University Hospital
Aarhus, Denmark, 8000
Sponsors and Collaborators
University of Aarhus
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Principal Investigator: Bjarne Møller-Madsen, Professor Aarhus University Hospital

Additional Information:
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Responsible Party: University of Aarhus Identifier: NCT01528553     History of Changes
Other Study ID Numbers: VEK 20080179
First Posted: February 8, 2012    Key Record Dates
Last Update Posted: February 8, 2012
Last Verified: February 2012
Keywords provided by University of Aarhus:
genu valgus
lower limb
Additional relevant MeSH terms:
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Genu Valgum
Bone Diseases
Musculoskeletal Diseases