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Customized 3D-printed foot orthoses improve foot function over time for flat feet

Effect of customized 3D-printed foot orthoses on time-dependent improvement of foot function in patients with flatfoot: a randomized controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN97258779
Enrollment
200
Registered
2025-08-14
Start date
2024-07-31
Completion date
Unknown
Last updated
2025-09-08

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

Conditions

Flat feet Musculoskeletal Diseases

Interventions

The study employed a parallel-group randomization design with a 1:1 allocation ratio. The randomization sequence was generated by an independent statistics unit using SAS software (version 9.4, SAS In

Sponsors

First People's Hospital of Kunshan
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Age 18-65 years, male or female, capable of independent cooperation and orthotic insole usage. 2. Physician-confirmed diagnosis of flatfoot during screening. 3. No prior treatment received for the condition after symptom onset. 4. Absence of other foot disorders (e.g., foot ulcers, diabetic foot). 5. Agreement to avoid pregnancy from informed consent signing through trial completion. 6. Full understanding of trial objectives, procedures, and risks; voluntary participation with signed informed consent before any study procedures.

Exclusion criteria

Exclusion criteria: 1. Unauthorized use of non-protocol drugs/medical devices during the trial. 2. Cognitive impairment preventing treatment cooperation. 3. Flatfoot deemed by a physician to require surgical intervention (conservative treatment failure). 4. Foot-related topical agents, physical therapy, or rehabilitation within 1 month before screening, or concurrent treatments affecting efficacy. 5. History of foot surgery within 12 months before screening or planned surgery during the trial. 6. Use of anesthetics, opioids, antispasmodics, long-acting NSAIDs (e.g., piroxicam, meloxicam, nabumetone, etoricoxib), or other efficacy-impacting drugs within 7 days before screening. 7. Foot/ankle pain unrelated to structural abnormalities (e.g., neurological disorders, rheumatoid conditions, trauma, referred pain). 8. Severe primary diseases (cardiovascular, hepatic, renal, hematopoietic) or psychiatric disorders. 9. Other investigator-determined unsuitability or voluntary withdrawal.

Design outcomes

Primary

MeasureTime frame
Overall foot function is measured using the Foot and Ankle Ability Measure (FAAM) score at baseline, 1, 2 and 3 months

Secondary

MeasureTime frame
1. Daily activity functions are measured using the Foot and Ankle Ability Measure (FAAM) - Activities of Daily Living (ADL) score at baseline, 1, 2 and 3 months 2. Sports function is measured using the Foot and Ankle Ability Measure (FAAM) - Sports score at baseline, 1, 2 and 3 months 3. Pain is measured using the Numerical Rating Scale (NRS) for pain at baseline, 1, 2 and 3 months

Countries

China

Contacts

Public ContactKe Lu
sgu8434@sina.com+86 15050274780

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026