ClinicalTrials.gg
CompletedNCT05456737Updated Jul 13, 2022

Functional Assessment in Children With Clubfoot

An observational study in Clubfoot, sponsored by Medipol University. Completed at 1 site in Turkey. Open to participants aged 5 Years to 15 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-07-13.

Sponsored by Medipol University · Observational

Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →

Study type
Observational
Model
Cohort
Time perspective
Other
Enrollment
51
Ages
5 Years to 15 Years
Sex
All
01

Study summary

The aim of this study was to determine ankle-foot characteristics, load distribution on foot, balance-proprioception, functional activity skills, disability and quality of life levels in children treated with Ponseti's method, finding out the asymetries between both feet in each group, to determine the differences between the healthy foot and the clubfeet, and also to examine the relationship between all parameters in healty children and children with clubfoot.

51 children ages ranging 5 to 15, were included in this study. In order to evaluate foot characteristics, anthropometric measurements were applied. FPI-6 is used for foot posture.Fizyosoft Balance System is used to measure the balance and proprioception. Functional activity were evaluated with Functional Activity and Skills Form. Disability were evaluated with OxAFQ-C and OxAFQ-P and KINDL forms are used to assess quality of life.

Read the detailed description

Pes Equinovarus (PEV) is one of the complex pediatric foot deformities that has a prevalence of 1-2/1000 live births and requires intensive treatment. The majority of patients with clubfeet have the idiopathic form. Men have a higher risk of exposure with a rate of 2-4/1000 compared to women, and bilateral involvement is present in half of the patients. Each child can be affected at different levels according to their mobility and morphological characteristics. The shape and function of the foot are greatly affected by the four components (CAVE) as adductus in the forefoot, cavus in the midfoot, varus in the hindfoot and equinus deformity in the ankle that make up the complex structure of the disease. It has been reported that children with Pes Equinovarus may experience problems with balance-coordination, gross motor skills and muscle strength due to the complex nature of the disease and an unsuccessful treatment, and also their quality of life may be adversely affected due to difficulties in daily activities.

Treatment of the disease is basically in two ways: operative and/or non-operative (conservative). The main goals of both treatments are to improve the mobility of the foot by correcting the four orthopedic deformities that constitute the complex nature of the disease, and to create a functional, painless, full contact with the ground and not needing modified shoes. The Ponseti method, which is one of the conservative treatment methods that is gold standart for the treatment of clubfoot, is a multi-stage method that requires gentle manipulation, weekly serial casting with a special technique, Achilles tenotomy if necessary, and the use of foot abduction orthosis after casting.

Although the clinical and functional results after Ponseti treatment were promising, deviations in plantar pressure distribution were found as a result of pedobarographic measurements and gait analyzes in unilateral and bilateral feet. It was stated that the dimensions of the unilateral foot were smaller than the contralateral foot, and it was stated that the contralateral foot could have different sizes compared to the normally developing foot. There is no definite judgment about foot anthropometry, due to the existence of studies stating that the sizes of the affected and contra-lateral feet are similar in unilateral involvement.

Balance is another parameter that is stated to be negatively affected depending on foot involvement and the severity of the deformity, but studies examining balance and activity-participation levels are very limited.In addition to studies stating that there is a difference in foot-ankle characteristics, plantar pressure distribution and gross motor skills in children who have received Ponseti treatment, there are also studies stating the opposite. The number of studies on activities of daily living and quality of life is quite limited, and there was any study examining balance and proprioception according to unilateral and bilateral involvement.

For this reason, the aim of this study was to compare the foot-ankle characteristics, plantar pressure distribution, functional activity skills, disability, quality of life and balance-proprioception levels in children treated with the Ponseti method primarily with unilateral-bilateral involvement as well as with children who maintain normal development. To examine the relationship between balance-proprioception involvement and functional activity skills, disability and quality of life in children with clubfoot.

51 children ages ranging 5 to 15, were included in this study. In order to evaluate foot characteristics, anthropometric measurements were applied. FPI-6 is used for foot posture.Fizyosoft Balance System is used to measure the balance and proprioception. Functional activity were evaluated with Functional Activity and Skills Form. Disability were evaluated with OxAFQ-C and OxAFQ-P and KINDL forms are used to assess quality of life.

While performing the statistical analysis of the data and creating the table, the affected foot was defined as the 'inferior' (inf) and the unaffected-contralateral foot as the 'superior' (sup) foot, considering the Dimeglio scores for the superior and inferior foot determination for the unilateral group (UG).

In the bilateral group (BG) and the healthy group (SG), the foot on the side on which they wrote (dominant hand) was called 'superior' and the non-dominant side was called 'inferior', since there was no difference between the Dimeglio scores of the children in both feet.

02

Conditions studied

  • Clubfoot

Browse trials for

Keywords

  • Balance
  • Disability
  • Foot anthropometry
  • Pes eqinovarus
  • Quality of life
03

In context

Clubfoot

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

This study's enrollment of 51 is close to the median of 55 across 27 observational studies indexed under Clubfoot.

Browse Clubfoot studies →

Lead sponsor

Medipol University is the lead sponsor of 326 studies on the registry; 86 are open to participants now.

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

04

Who can participate

Ages eligible
5 Years to 15 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Clubfoot groups: Diagnosed with idiopathic unilateral and bilateral clubfoot

Healty group : To be called "healthy" who continue their normal developmental stages and not diagnosed with orthopedic disease.

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

  1. For the Healty group (control)

    • To be volunteer
    • Being between the ages of 5-15
    • Having signed the form
    • To be approved by the orthopedist that he does not have any orthopedic problems that would prevent walking, balance and activities of daily living, especially standing
    • Not having any neurological disorders
  2. For the Pes Equinovarus groups:

    • To be volunteer
    • Being between the ages of 5-15
    • Having signed the informed consent form
    • To be diagnosed with idiopathic pes equinovarus
    • Being treated primarily with the Ponseti method
    • Being able to stand without support
    • Being able to walk without an assistive device

Exclusion criteria

Exclusion Criteria:

  • Having a diagnosis of neurologic clubfoot
  • clubfoot associated with severe syndromes such as myelomeningocele or Down syndrome, Larsen, Diastrophic Dysplasia
  • Diagnosing congenital joint contractures such as Arthrogryposis Multiplex Congenita
  • To have an operative treatment for Pes Echinovarus in the last 1 year
  • Refusing to participate in the study
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Other
Enrollment
51 participants (actual)
Patient registry
No

Groups and cohorts

  • Unilateral Group

    Participants with a diagnosis of unilateral clubfoot treated with the Ponseti method were evaluated once with the following evaluation methods: Anthropometric measurements FPI-6 Fizyosoft Balance System Functional Activity and Skills Form. OxAFQ-C and OxAFQ-P Kiddy-Kid-Kiddo KINDL

    Other: assessment

  • Bilateral Group

    Participants with a diagnosis of bilateral clubfoot treated with the Ponseti method were evaluated once with the following evaluation methods: Anthropometric measurements FPI-6 Fizyosoft Balance System Functional Activity and Skills Form. OxAFQ-C and OxAFQ-P Kiddy-Kid-Kiddo KINDL

    Other: assessment

  • Healty Group (Control)

    Healthy participants with normal development were evaluated once with the following evaluation methods: Anthropometric measurements FPI-6 Fizyosoft Balance System Functional Activity and Skills Form. OxAFQ-C and OxAFQ-P Kiddy-Kid-Kiddo KINDL

    Other: assessment

Interventions

  • Otherassessment

    Application of various assessment methods to determine the foot characteristics, foot posture, functional activity, balance levels and quality of life of the determined groups.

06

What researchers measure

Primary outcomes

  1. OxAFQ-C and OxAFQ-P

    The Oxford Ankle-Foot Questionnaire child and parent form (OxAFQ-C and OxAFQ-P) was used to assess disability severity and function associated with foot-ankle problems. Response options for each item were rated from never (4), rarely (3), sometimes (2), very often (1) to always (0), indicating how often the problem affected the child. Scoring on the 4-field scale is calculated by converting the sum of the field scores to each field's percentage scale (0-100). A higher score for an area represents better function.

    Time frame: January 2020 - February 2021

Secondary outcomes

  1. Foot lenght

    The foot length was determined by taking the footprint on the paper and measuring the distance between the two extreme points on the paper with the help of a tape measure.

    Time frame: January 2020 - February 2021

  2. Forefoot width

    Forefoot width, was determined by taking the footprint on the paper and measuring the distance between first and fifth metatarsal on the paper with the help of a tape measure.

    Time frame: January 2020 - February 2021

  3. Heel width

    Heel width was determined by taking the footprint on the paper and measuring the distance between the two extreme points on heel with the help of a tape measure.

    Time frame: January 2020 - February 2021

  4. Medial malleol-navicular distance

    Medial malleol-navicular distance were measured with the help of a tape measure.

    Time frame: January 2020 - February 2021

  5. Intermalleolar distance

    Intermalleolar distance was determined by measuring the distance between the medial malleolus in both feet with the help of a tape measure in the standing position.

    Time frame: January 2020 - February 2021

  6. Leg circumference

    Leg circumference was determined in a standing position by measuring the circumference of the thickest part of the leg with a tape measure.

    Time frame: January 2020 - February 2021

  7. FPI-6

    It is a scale that determines foot posture by palpation method. Position of the head of the talus in the hindfoot, inclination under the lateral malleolus, inversion-eversion of the calcaneus; In the forefoot, the talonavicular joint area is evaluated against the medial longitudinal arch structure, and the abduction-adduction of the forefoot is scored between -2 and +2 points. * 2,-1 codes for supination of the foot, 0 for neutral, +1,+2 for pronation posture. It was used in this study to evaluate bilateral foot posture.

    Time frame: January 2020 - February 2021

  8. Fizyosoft Balance System

    Fizyosoft Balance System, which was developed by engineers and physiotherapists within the scope of the Tübitak Project, is basically based on the principle of using the Nintendo WiiFit system through a computer by developing software for the purpose of objective balance assessment on the balance board. The developed system evaluates the person's static standing balance, load distributions in each foot, postural sway and proprioception. The main issues in the evaluation are the changes in the center of gravity in the x and y axes of the cases with eyes open and closed, the change in postural sway, and the position of the body center of gravity on the feet.In this study, it was used to evaluate static balance, proprioception, and load distribution and transfer in the feet.

    Time frame: January 2020 - February 2021

  9. Functional Activity and Skills Form

    The form, which consists of parameters such as straight walking, toe walking, heel walking, running, squatting, standing on one foot and jumping on one foot, measures the ability of the ankle in functional activities. The scoring system is at the item and subgroup level and no total points are used. For each item, it ranges from 0 (severe reduction / no capacity) to 4 (within normal limits) according to the nature of the movement, and a high score reflects high function.

    Time frame: January 2020 - February 2021

  10. Kiddy-Kid-Kiddo KINDL

    Kiddy-KINDL, Kid-KINDL and Kiddo-KINDL, which is used to evaluate general health-related quality of life in this study, are versions of general health-related quality of life, representing different age groups. The Kiddy-KINDL Junior Form is used for young children aged 4-7, the Kid-KINDL Child Form: for children aged 8-12, and the Kiddo-KINDL Adolescent Form is used for children aged 13-16. In scoring between 0-100, 0 indicates the worst score, while 100 indicates the best score. A high score is an indicator of good quality of life.

    Time frame: January 2020 - February 2021

  11. Dimeglio Scoring System

    The scale developed by Dimeglio et al. measures the correctability of the foot angularly and determines the severity of the deformity. In this study, it was used to determine the severity of the deformity and to determine the superior-inferior foot according to the foot severity.

    Time frame: January 2020 - February 2021

07

Study locations

1 site
  • Dilbade Special Education and Rehabilitation Center
    Istanbul, Eyüp 34050, Turkey
08

References and documents

Publications

  • Xu C, Wei J, Yan YB, Shang L, Yang XJ, Huang LY, Lei W. Pedobarographic Analysis following Ponseti Treatment for Unilateral Neglected Congenital Clubfoot. Sci Rep. 2018 Apr 19;8(1):6270. doi: 10.1038/s41598-018-24737-w. PubMed 29674653 ↗
  • Sangiorgio SN, Ebramzadeh E, Morgan RD, Zionts LE. The Timing and Relevance of Relapsed Deformity in Patients With Idiopathic Clubfoot. J Am Acad Orthop Surg. 2017 Jul;25(7):536-545. doi: 10.5435/JAAOS-D-16-00522. PubMed 28574943 ↗
  • Gelfer Y, Dunkley M, Jackson D, Armstrong J, Rafter C, Parnell E, Eastwood DM. Evertor muscle activity as a predictor of the mid-term outcome following treatment of the idiopathic and non-idiopathic clubfoot. Bone Joint J. 2014 Sep;96-B(9):1264-8. doi: 10.1302/0301-620X.96B9.33755. PubMed 25183601 ↗
  • Garcia-Gonzalez NC, Hodgson-Ravina J, Aguirre-Jaime A. Functional physiotherapy method results for the treatment of idiopathic clubfoot. World J Orthop. 2019 Jun 18;10(6):235-246. doi: 10.5312/wjo.v10.i6.235. eCollection 2019 Jun 18. PubMed 31259147 ↗
  • Cosma D, Vasilescu DE. A Clinical Evaluation of the Pirani and Dimeglio Idiopathic Clubfoot Classifications. J Foot Ankle Surg. 2015 Jul-Aug;54(4):582-5. doi: 10.1053/j.jfas.2014.10.004. Epub 2014 Nov 13. PubMed 25458441 ↗
  • Dobbs MB, Rudzki JR, Purcell DB, Walton T, Porter KR, Gurnett CA. Factors predictive of outcome after use of the Ponseti method for the treatment of idiopathic clubfeet. J Bone Joint Surg Am. 2004 Jan;86(1):22-7. doi: 10.2106/00004623-200401000-00005. PubMed 14711941 ↗
  • Zapata KA, Karol LA, Jeans KA, Jo CH. Gross Motor Function at 10 Years of Age in Children With Clubfoot Following the French Physical Therapy Method and the Ponseti Technique. J Pediatr Orthop. 2018 Oct;38(9):e519-e523. doi: 10.1097/BPO.0000000000001218. PubMed 29965933 ↗
  • Andriesse H, Westbom L, Hagglund G. Motor ability in children treated for idiopathic clubfoot. A controlled pilot study. BMC Pediatr. 2009 Dec 15;9:78. doi: 10.1186/1471-2431-9-78. PubMed 20003483 ↗
  • Agarwal A, Rastogi A. Anthropometric measurements in Ponseti treated clubfeet. SICOT J. 2018;4:19. doi: 10.1051/sicotj/2018010. Epub 2018 May 25. PubMed 29806584 ↗
  • Loof E. Additional challenges in children with idiopathic clubfoot: is it just the foot? J Child Orthop. 2019 Jun 1;13(3):245-251. doi: 10.1302/1863-2548.13.190076. PubMed 31312263 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2020 to primary completion in Feb 2021, 13 months.

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

Registered
Jul 7, 2022
First posted
Jul 13, 2022
StartActual
Jan 15, 2020
Primary completionActual
Feb 26, 2021
CompletionActual
Feb 26, 2021
Last update
Jul 13, 2022
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 Jul 13, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05456737
Lead sponsor
Medipol University
Responsible party
Özlem Aydın (Physiotherapist, Medipol University) — Principal investigator
First posted
Jul 13, 2022
Start date
Jan 15, 2020
Primary completion
Feb 26, 2021
Completion
Feb 26, 2021
Last update
Jul 13, 2022

Study contacts

Özlem Aydın, M.Sc.
principal investigator · Medipol University
Devrim Tarakçı, Assoc. Prof.
study director · Medipol University

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 completed, as verified in Jul 2022. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion