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Stapling Versus 8plate for Correction of Genu Valgus

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified February 2012 by University of Aarhus.
Recruitment status was:  Active, not recruiting
Information provided by (Responsible Party):
University of Aarhus Identifier:
First received: January 20, 2012
Last updated: February 3, 2012
Last verified: February 2012

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 Intervention
Deformity Genu Valgus Device: 8plate Device: Staples (Richards, Smith & Nephew)

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Care Provider)
Primary Purpose: Treatment
Official Title: Stapling Versus 8plate for Correction of Genu Valgus. A Randomised Clinical Study

Further study details as provided by University of Aarhus:

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

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

Enrollment: 20
Study Start Date: August 2009
Estimated Study Completion Date: August 2012
Estimated Primary Completion Date: August 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
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

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.

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
  Contacts and Locations
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Please refer to this study by its identifier: NCT01528553

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

Additional Information:
Responsible Party: University of Aarhus Identifier: NCT01528553     History of Changes
Other Study ID Numbers: VEK 20080179
Study First Received: January 20, 2012
Last Updated: February 3, 2012

Keywords provided by University of Aarhus:
genu valgus
lower limb

Additional relevant MeSH terms:
Genu Valgum
Bone Diseases
Musculoskeletal Diseases processed this record on July 21, 2017