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Comparative study on the efficacy of high versus low fluence of 595-nm pulsed dye laser for knee arthroplasty scar prevention

Comparative study on the efficacy of high versus low fluence of 595-nm pulsed dye laser for knee arthroplasty scar prevention

Status
Unknown
Phases
Phase 4
Study type
Interventional
Source
TCTR
Registry ID
TCTR20230427003
Enrollment
20
Registered
2023-04-27
Start date
2023-03-28
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

Patients who have undergone bilateral knee arthroplasty within one month Scar PDL Purpuric

Interventions

One side of the knee will be randomized for laser treatment with PDL (Purpuric mode Fluence 7-8 J/cm2, Pulse duration 0.45 ms, Spot size 10 mm, DCD 20/20) only the upper or lower half, which is also w
Experimental Device,Active Comparator Device,Experimental Device
Treatment (Purpuric mode),Treatment (Non Purpuric mode),Control

Sponsors

Faculty of Medicine Siriraj Hospital, Mahidol University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
40 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Being a Thai person of Asian descent 2. Those who have undergone bilateral knee arthroplasty surgery within 1 month or have an appointment to have bilateral knee arthroplasty surgery within one month before the operation. 3. Volunteers who voluntarily agree to participate in the project and agree to take pictures of the surgical scars

Exclusion criteria

Exclusion criteria: 1. Volunteers who had dermatitis or skin infection at the treatment site. 2. Volunteers with a history of knee arthroplasty surgery wound infection 3. Volunteers with severe medical conditions or those receiving immunosuppressants such as steroids or chemotherapy drugs 4. Volunteers with hypertrophic scars or keloids in the area to be treated before knee replacement surgery 5. Volunteers with mental disorders whom a psychiatrist has diagnosed. 6. Subjects with a history of photosensitive skin

Design outcomes

Primary

MeasureTime frame
Scar elevation Before, 4 weeks, 8 weeks, 12 weeks, 20 weeks, 32 weeks after first treatment Antera 3D imaging system

Secondary

MeasureTime frame
Vancouver scar scale Before, 4 weeks, 8 weeks, 12 weeks, 20 weeks, 32 weeks after first treatment Clinical evaluation

Countries

Thailand

Contacts

Public ContactThrit Hutachoke

Faculty of Medicine Siriraj Hospital, Mahidol University

maxover2@gmail.com0818032865

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026