- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03843177
Association of Ingrown Toenails With Flat Foot, Hallux Abducto Valgus and Hallux Limitus
This study will have implications for any healthcare professionals who routinely manage ingrown toenails. Although different conservative and surgical treatment have been suggested, the recurrent rate is still high ranging from 20% to 30%. The objective of this study was to investigate the association of ingrown toenail (IGTN) with flat foot, hallux abducto valgus (HAV) and hallux limitus (HL), and to provide directions for addressing biomechanical risk factors in the prevention of recurrent ingrown toenails. This was the first study to investigate the association of IGTN with flat foot, and the first study in Chinese community to investigate the association of IGTN with HAV or HL.
Participants with ingrown toenails (IGTN) were recruited to this study and compared with control participants with no history of ingrown toenails.
The inclusion criteria for the IGTN group were: (1) history of ingrown toenails on hallux within 1 year and (2) dorso-plantar standing view of foot x-ray taken or to be taken.
The exclusion criteria for the IGTN group were: (1) paediatrics (Age<18), (2) pincer nails / fungal nails, (3) prior existence of osteoarticular surgery in the foot, (4) severe trauma that changes foot morphology, (5) uncontrolled systemic disease, (6) pre-existing neurological diseases and (7) lower limb paralysis or paresis.
The inclusion criterion for the control group was dorso-plantar standing view of foot x-ray taken or to be taken.
The exclusion criteria for the control group were: (1) all the exclusion criteria of IGTN group, (2) history of IGTN in his or her lifetime and (3) flatfoot / first metatarsophalangeal joint pathology as the chief complaint.
The symptomatic foot (or the more symptomatic foot in the case of bilateral involvement) in the IGTN group was examined. The left or right foot of the control group was randomly selected such that the ratio of the left or the right foot in the IGTN and control group was the same.
Their foot posture index-6 components, Staheli's index, radiological hallux valgus angle and active maximum dorsiflexion of the first metatarsophalangeal joint on weight-bearing were measured and compared.
For dependent variables with significant correlation, a one-way multivariate analysis of variance (MANOVA) was carried out to determine if there was a significant difference on the combined dependent variables. For dependent variables without significant correlation, separate independent sample t-tests / welch t-tests were performed.
Study Overview
Status
Intervention / Treatment
Detailed Description
Precautions were taken to ensure consistency in measurement. To standardize the bisection techniques in measuring radiological hallux valgus angle, this study followed the recommendation from the American Orthopaedic Foot & Ankle Society. The longitudinal axis of the first metatarsal and that of the first proximal phalanx were formed respectively by 2 reference points marked on each of the two bones. The reference points on the first proximal phalanx were 1/2 to 1 cm proximal or distal to the articular surface while the reference points on the first metatarsal were 1 to 2 cm proximal or distal to the articular surface.
The active maximum dorsiflexion of the first metatarsophalangeal joint was measured with goniometer on weight-bearing. The bisection was carried out under a weight-bearing condition to avoid error due to soft-tissue movement when participants changed from a non weight-bearing position to a weight-bearing position.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Hong Kong, Hong Kong
- Prince of Wales Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion criteria for the IGTN group:
- history of ingrown toenails on hallux within 1 year
- dorso-plantar standing view of foot x-ray taken or to be taken
Exclusion criteria for the IGTN group:
- paediatrics (Age<18)
- pincer nails / fungal nails
- prior existence of osteoarticular surgery in the foot
- severe trauma that changes foot morphology
- uncontrolled systemic disease
- pre-existing neurological diseases
- lower limb paralysis or paresis
Inclusion criterion for the control group:
- dorso-plantar standing view of foot x-ray taken or to be taken
Exclusion criteria for the control group:
- all the exclusion criteria of IGTN group
- history of IGTN in his or her lifetime
- flatfoot / first metatarsophalangeal joint pathology as the chief complaint
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
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Control
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Ingrown toenails
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No intervention will be performed.
Only assessment will be done.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Foot Posture Index-6 components
Time Frame: throughout the study, within 1 year after ingrown toenails for the ingrown toenail group
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throughout the study, within 1 year after ingrown toenails for the ingrown toenail group
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Staheli's Index
Time Frame: throughout the study, within 1 year after ingrown toenails for the ingrown toenail group
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throughout the study, within 1 year after ingrown toenails for the ingrown toenail group
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radiological Hallux Valgus Angle
Time Frame: throughout the study, within 1 year after ingrown toenails for the ingrown toenail group
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throughout the study, within 1 year after ingrown toenails for the ingrown toenail group
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Active maximum dorsiflexion of the first metatarsophalangeal joint on weight bearing
Time Frame: throughout the study, within 1 year after ingrown toenails for the ingrown toenail group
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Clinical measurement with goniometer for hallux limitus
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throughout the study, within 1 year after ingrown toenails for the ingrown toenail group
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Skin Diseases
- Wounds and Injuries
- Leg Injuries
- Congenital Abnormalities
- Joint Diseases
- Musculoskeletal Diseases
- Nail Diseases
- Musculoskeletal Abnormalities
- Limb Deformities, Congenital
- Foot Deformities
- Foot Deformities, Acquired
- Foot Deformities, Congenital
- Lower Extremity Deformities, Congenital
- Foot Injuries
- Talipes
- Hallux Valgus
- Hallux Rigidus
- Hallux Limitus
- Flatfoot
- Nails, Ingrown
Other Study ID Numbers
- 2017.637
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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