Poly-L-Lactic Acid Threads Versus Platelet-Rich Plasma for Post-Traumatic Atrophic Scars (PLLA-PRP PTAS)
A Comparative Study of Poly-L-Lactic Acid Threads Versus Platelet-Rich Plasma, Both Combined With Subcision, in the Treatment of Post-Traumatic Atrophic Scars
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
Post-traumatic atrophic scars result from abnormal healing following skin injury and may cause significant cosmetic and functional impairment. Subcision releases the fibrous bands tethering the scar to deeper tissues and may improve the response to additional treatments. PLLA threads are biodegradable materials that can stimulate collagen production, while PRP contains concentrated platelets and growth factors that may enhance tissue repair and remodeling.
This comparative study was conducted at the Dermatology and Venereology Department, Tanta University Hospital. Patients diagnosed with post-traumatic atrophic scars for at least one year and who had not received treatment during the preceding six months were enrolled. Patients with keloids, immunosuppression, coagulative or thrombophilic disorders, or chronic diseases were excluded.
Participants were divided into two equal treatment groups. Group A received a single session of subcision followed by insertion of poly-L-lactic acid threads. Group B received subcision combined with PRP injection for four sessions at one-month intervals. Clinical photographs were obtained before treatment and three months after treatment. Clinical improvement was assessed by two blinded dermatologists using the Global Aesthetic Improvement Scale, while patient satisfaction and treatment-related complaints or adverse effects were also recorded.
Skin biopsies were obtained from six patients before treatment and three months after treatment and evaluated using hematoxylin and eosin and trichrome staining to assess histopathological changes. All patients were followed for three months.
The study was approved by the Research Ethics Committee of the Faculty of Medicine, Tanta University, with approval number 32889/01/19, and informed consent was obtained from all participants.
Tipo de estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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Tanta, Egito
- Tanta University Hospitals
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Filho
- Adulto
Aceita Voluntários Saudáveis
Descrição
Inclusion Criteria:
- Patients with post-traumatic atrophic scars. Scar duration of at least 1 year. No treatment received during the previous 6 months.
Exclusion Criteria:
- Keloids Immunosuppression Coagulative disorders Thrombophilic disorders Any chronic diseases
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Solteiro
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
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Comparador Ativo: subcision and PLLA threads
subcision and PLLA threads' insertion at the same session
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subcision and PLLA threads' insertion at the same session
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Comparador Ativo: PRP and subcision (PRP-S) injection
PRP and subcision (PRP-S) injection monthly for four sessions
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PRP and subcision (PRP-S) injection monthly for four sessions
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Global Aesthetic Improvement Scale (GAIS) score
Prazo: 3 months after treatment
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Clinical improvement of post-traumatic atrophic scars was assessed using the Global Aesthetic Improvement Scale by two dermatologists blinded to the treatment group.
The scale was graded from 1 to 4: Grade 1 = mild/no improvement (0-25%), Grade 2 = moderate improvement (26-50%), Grade 3 = marked improvement (51-75%), and Grade 4 = excellent improvement (>75%).
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3 months after treatment
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Colaboradores e Investigadores
Patrocinador
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
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Outros números de identificação do estudo
- 32889/01/19
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