ClinicalTrials.gg
Active, not recruitingNCT05913934Updated Jun 22, 2023

Clubfeet and Twins and Gait Analysis

An observational study in Clubfoot, sponsored by Dr.Joller BioMedical Consulting. Active, not recruiting at 1 site in Switzerland. Open to participants aged 3 Years to 14 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-06-22.

Sponsored by Dr.Joller BioMedical Consulting · Observational

From the registry’s dates

  • Primary completion was expected by Jul 2023, 3 years 4 months ago, but the record still lists the study as active, not recruiting.

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Study type
Observational
Model
Case-control
Time perspective
Other
Enrollment
24
Ages
3 Years to 14 Years
Sex
All
01

Study summary

Children with clubfeet who were exclusively treated by Ursula Issler-Wüthrich for 3 to 14 years with manual-dynamic physiotherapy and their healthy twin siblings are compared using gait analysis.

GaitUp sensors (kinematic) and footscan V9 (kinetic) are the systems used for this comparison.

Nonparametric statistics are applied to verify aberrations.

Read the detailed description

Control gait analysis in clubfoot children and comparison with their healthy twins

Clubfeet are the most common birth defect with about 80 cases in Switzerland per year. There are two important therapies: Ponseti and manual-dynamic physiotherapy.

Ursula Issler-Wüthrich, physiotherapist, since twenty years treats exclusively clubfeet and comorbidities with clubfeet like arthrogryposis and myelomeningocele. Until today she corrected more than 400 feet with manual-dynamic physiotherapy.

Among her patients there are 11 twin pairs. In the scientific literature it is stated that in unilateral clubfoot, the other foot cannot be considered normal.With the two gait analysis systems meant for controlling the therapy results, the walking pattern of the healthy twin was compared with the pattern of the affected twin sibling.

The basis of the study is a walk over 25 meters with the GaitUp sensors (11 g) resulting in 22 quantitative digital parameters and tests on the pedobarographic plate footscan V9 leading to 10 parameters.

Statistically it will be analyzed whether there is a discrepancy between the clubfeet children and their healthy twins.

The parents in writing and the children orally gladly approved the task.

02

Conditions studied

  • Clubfoot

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Keywords

  • Clubfoot
  • gait analysis
  • twin comparison
  • inertial sensor
  • footscan
  • manual-dynamic physiotherapy
  • derotation
03

In context

Clubfoot

69 studies on the registry are indexed under Clubfoot; 15 are open to participants now.

This study's enrollment of 24 is below the median of 55 across 27 observational studies indexed under Clubfoot.

Browse Clubfoot studies →

Lead sponsor

This is the only study on the registry with Dr.Joller BioMedical Consulting as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
3 Years to 14 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Children from 3 to 14 years old, beeing treated for clubfeet and their healthy twins.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Twins with clubfeet

Exclusion criteria

Exclusion Criteria:

  • All other clubfeet
05

Study design

Observational model
Case-control
Time perspective
Other
Enrollment
24 participants (actual)
Target follow-up
2 Years
Patient registry
Yes

Groups and cohorts

  • Gait analysis parameters

    Twins: Gait analysis

    Behavioral: Gait analysis

Interventions

  • BehavioralGait analysis

    Walk over 25 meters in a gym (GaitUp) Walk over 6 meters with footscan v9 in the office

06

What researchers measure

Primary outcomes

  1. Differences in gait analyses of treated clubfeet and their healthy twin siblings: p-value

    The gait analyses parameters are statistically compared between the healhy siblings and the clubfoot twins. The p-values descibe the disparity among the groups. p-values below 0.05 point to a statistical difference and are a clue to insufficient therapy.

    Time frame: 2 years

  2. Differences in gait analyses of treated clubfeet and their healthy twin siblings:Effect size

    The effect size is a measure for the interpretation of differences. It represents the shift between the standard curves of the two populations. Effect sizes of more than ±0.5 suggests a serious discrepancy.

    Time frame: 2 years

07

Study locations

1 site
  • Dr.Joller BioMedical Consulting
    Zürich, 8057, Switzerland
08

References and documents

Individual participant data

Plan to share: Yes

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Apr 2023 (actual). Primary completion is estimated for Jul 2023, 2 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
May 19, 2023
First posted
Jun 22, 2023
StartActual
Apr 29, 2023
Primary completionEst.
Jul 1, 2023
CompletionEst.
Jul 31, 2023
Last update
Jun 22, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 22, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05913934
Lead sponsor
Dr.Joller BioMedical Consulting
Responsible party
Sponsor
First posted
Jun 22, 2023
Start date
Apr 29, 2023
Primary completion
Jul 1, 2023 (estimated)
Completion
Jul 31, 2023 (estimated)
Last update
Jun 22, 2023

Study contacts

Peter Joller, PhD
study director · Dr.Joller BioMedical Consulting

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Jun 2023. You cannot join it, but the record below documents what was studied.

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Discussion

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