---
title: Stapling Versus 8plate for Correction of Genu Valgus
nct_id: NCT01528553
overall_status: UNKNOWN
phase: NA
sponsor: University of Aarhus
study_type: INTERVENTIONAL
primary_condition: Deformity
countries: Denmark
canonical_url: "https://parkinsonspathways.com/agent/trials/NCT01528553.md"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT01528553"
ct_last_update_post_date: 2012-02-08
last_seen_at: "2026-05-12T07:11:14.785Z"
source: ClinicalTrials.gov (mirrored, no enrichment)
---
# Stapling Versus 8plate for Correction of Genu Valgus

**Official Title:** Stapling Versus 8plate for Correction of Genu Valgus. A Randomised Clinical Study

**NCT ID:** [NCT01528553](https://clinicaltrials.gov/study/NCT01528553)

## Key Facts

- **Status:** UNKNOWN
- **Phase:** NA
- **Study Type:** INTERVENTIONAL
- **Target Enrollment:** 20
- **Lead Sponsor:** University of Aarhus
- **Conditions:** Deformity, Genu Valgus
- **Start Date:** 2009-08
- **Completion Date:** 2012-08
- **CT.gov Last Update:** 2012-02-08

## 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.

## 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.

## Eligibility

- **Minimum age:** 8 Years
- **Maximum age:** 15 Years
- **Sex:** ALL
- **Healthy Volunteers:** No

```
Inclusion Criteria:

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

Exclusion Criteria:

* Unilateral conditions
```

## Arms

- **Staples** (ACTIVE_COMPARATOR) — Old implant type
- **8plate** (ACTIVE_COMPARATOR) — New implant type

## Interventions

- **8plate** (DEVICE) — 12 mm or 16 mm plate. 24 mm or 36 mm screw
- **Staples (Richards, Smith & Nephew)** (DEVICE) — Staples (3 on each side)

## Primary Outcomes

- **Treatment time** _(time frame: up to 104 weeks)_ — Will be followed with repeated clinical examinations until correction of deformity.

## Secondary Outcomes

- **Radiological correction** _(time frame: up to 104 weeks)_

## Locations (1)

- Aarhus University Hospital, Aarhus, Denmark

## Recent Field Changes (last 30 days)

- `status.overallStatus` — added _(2026-05-12)_
- `status.primaryCompletionDate` — added _(2026-05-12)_
- `status.completionDate` — added _(2026-05-12)_
- `status.lastUpdatePostDate` — added _(2026-05-12)_
- `design.phases` — added _(2026-05-12)_
- `design.enrollmentCount` — added _(2026-05-12)_
- `eligibility.criteria` — added _(2026-05-12)_
- `eligibility.minAge` — added _(2026-05-12)_
- `eligibility.maxAge` — added _(2026-05-12)_
- `eligibility.sex` — added _(2026-05-12)_
- `outcomes.primary` — added _(2026-05-12)_
- `outcomes.secondary` — added _(2026-05-12)_
- `armsInterventions.arms` — added _(2026-05-12)_
- `armsInterventions.interventions` — added _(2026-05-12)_
- `sponsor.lead` — added _(2026-05-12)_
- `results.hasResults` — added _(2026-05-12)_
- `locations.aarhus university hospital|aarhus||denmark` — added _(2026-05-12)_

---

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*Source data (authoritative): https://clinicaltrials.gov/study/NCT01528553*  
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