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The relation of pressure to the nail and pincer nail

The relation of pressure to the nail and pincer nail

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20260507003
Enrollment
26
Registered
2026-05-07
Start date
2026-05-06
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pincer nail Ingrown nail Pincer nail Ingrown nail Nails Nail diseases Biomechanics Mechanical stress Pressure Plantar pressure Force measurement Sensor Toenail

Interventions

Participants diagnosed with pincer nail deformity, characterized by excessive transverse overcurvature of the nail plate. Mechanical forces acting on the toenail will be measured under multiple condit
Basic Science,Basic Science
Pincer nail group,Healthy control group

Sponsors

The Prasert Prasarttong-Osoth Medical Research Fund, Medical Council of Thailand
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Participants with pincer nail deformity 2. Aged 18 years or older 3. Able to walk safely without assistive devices for at least 5 minutes 4. Able to provide informed consent

Exclusion criteria

Exclusion criteria: 1. Participants with pincer nail deformity due to identifiable causes, including hereditary or genetic disorders, joint diseases, systemic diseases, medications, or other known etiologies. 2. Individuals unable to provide informed consent or lacking decision-making capacity. 3. Participants with conditions or history of surgery affecting normal gait or sensation.

Design outcomes

Primary

MeasureTime frame
Mechanical forces on the toenail (peak force) Single session under multiple conditions (sitting, standing, and walking) Measured using a custom device with force sensing resistors (FSRs) attached to the toenail, recording forces on multiple nail aspects during sitting, standing, and walking

Secondary

MeasureTime frame
Mechanical forces on the toenail (pressure distribution / condition comparison) Single session under multiple conditions (sitting, standing, and walking) Measured using a custom device with force sensing resistors (FSRs) attached to the toenail, recording forces on multiple nail aspects during sitting, standing, and walking

Countries

Thailand

Contacts

Public ContactPornkanok Nimnoi

Faculty of Medicine Siriraj Hospital, Mahidol University

pornkanok.nim@mahidol.ac.th024197035

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026