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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Three-dimensional printed poly (L-lactide) and hydroxyapatite composite for reconstruction of critical bone defect in rabbits

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Autor(es):
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Minto, Bruno Watanabe [1, 2] ; Sprada, Aricia Gomes [2, 3] ; Goncalves Neto, Jose Aloizio [2, 4] ; de Alcantara, Brenda Mendonca [2, 4] ; de Sa Rocha, Thiago Andre Salvitti [2, 5] ; Valentim Hespanha, Ana Carolina [2, 4] ; Quarterone, Carolina [2, 6] ; Sartori, Maressa da Rocha [2, 7] ; Hataka, Alessandre [2, 8] ; Ramirez Uscategui, Ricardo Andres [2, 9] ; Gosuen Goncalves Dias, Luis Gustavo [1, 2]
Número total de Autores: 11
Afiliação do(s) autor(es):
[1] Univ Estadual Paulista, Fac Agr & Vet Sci, Dept Clin & Vet Surg, Jaboticabal, SP - Brazil
[2] Univ Estadual Paulista Julio de Mesquita Filho UN, Fac Agr & Vet Sci, Dept Clin & Vet Surg, Jaboticabal, SP - Brazil
[3] Ctr Univ Maringa, Dept Vet Anat, Maringa, Parana - Brazil
[4] Univ Estadual Paulista, Fac Agr & Vet Sci, Grad Program Vet Surg, Jaboticabal, SP - Brazil
[5] Univ Brasil, Dept Clin & Vet Surg, Descalvado, SP - Brazil
[6] Ctr Univ Maringa, Dept Vet Surg, Maringa, Parana - Brazil
[7] Ctr Univ Maringa, Maringa, Parana - Brazil
[8] Univ Estadual Paulista, Fac Agr & Vet Sci, Dept Vet Clin Sci, Botucatu, SP - Brazil
[9] Univ Fed Vales Jequitinhonha & Mucuri, Inst Sci, Dept Vet Clin Sci, Unai, MG - Brazil
Número total de Afiliações: 9
Tipo de documento: Artigo Científico
Fonte: Acta Cirurgica Brasileira; v. 36, n. 4 2021.
Citações Web of Science: 0
Resumo

ABSTRACT Purpose To use a 3D printed poly (L-lactide) acid (PLLA) and hydroxyapatite (HA) composite as a bone substitute for reconstruction of a critical bone defect in the radius of rabbits. Methods A 1.5 cm ostectomy was performed in the radial diaphysis of 60 New Zealand white rabbits. The rabbits were divided into three groups according to surgical treatment of the bone defect (group I – control, group II – bone graft, group III – 3D PLLA). Each group was divided into four subgroups with different radiographic and histopathologic evaluation times (T1 – 15 days, T2 – 30 days, T3 – 60 days, T4 – 90 days). Results The implant group had greater clinically lameness (p = 0.02), edema (p = 0.007), pain (p = 0.04) and more complications at the surgical site (p = 0.03). Histologically, this group showed greater congestion (p = 0.04), hemorrhage (p = 0.04) and inflammation. Osteogenesis was microscopically similar between days (p = 0.54) and treatments (p = 0.17), even though radiographically, more effective bone healing occurred in the graft group (II), with more callus and bone bridge formation. Conclusions The customization of a 3D PLLA/HA scaffold was successful. However, in animals receiving the polymer-ceramic composite less bone callus and bone bridge was formed compared to the graft group. (AU)

Processo FAPESP: 15/10139-1 - Impressão tridimensional de substituto ósseo na reconstrução de falha segmental em rádio de coelhos
Beneficiário:Arícia Gomes Sprada
Modalidade de apoio: Bolsas no Brasil - Doutorado