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Three-dimensional printed poly (L-lactide) and hydroxyapatite composite for reconstruction of critical bone defect in rabbits
Department of Clinical and Veterinary SurgeryMinto, Bruno Watanabe; Sprada, Arícia Gomes; Graduate Program in Veterinary SurgeryGonçalves Neto, José Aloizio; Graduate Program in Veterinary SurgeryAlcântara, Brenda Mendonça de; Rocha, Thiago André Salvitti de Sá; Graduate Program in Veterinary SurgeryHespanha, Ana Carolina Valentim; Quarterone, Carolina; Sartori, Maressa da Rocha; Department of Veterinary Clinical SciencesHataka, Alessandre; Department of Veterinary Clinical SciencesUscategui, Ricardo Andres Ramirez; Department of Clinical and Veterinary SurgeryDias, Luis Gustavo Gosuen Gonçalves.
  • Department of Clinical and Veterinary SurgeryMinto, Bruno Watanabe; Universidade Estadual Paulista Júlio de Mesquita Filho. Faculty of Agrarian and Veterinary Science. Department of Clinical and Veterinary SurgeryMinto, Bruno Watanabe. Jaboticabal. BR
  • Sprada, Arícia Gomes; Centro Universitário de Maringá. Department of Veterinary Anatomy. Maringá. BR
  • Graduate Program in Veterinary SurgeryGonçalves Neto, José Aloizio; Universidade Estadual Paulista Júlio de Mesquita Filho. Faculty of Agrarian and Veterinary Sciences. Graduate Program in Veterinary SurgeryGonçalves Neto, José Aloizio. Jaboticabal. BR
  • Graduate Program in Veterinary SurgeryAlcântara, Brenda Mendonça de; Universidade Estadual Paulista Júlio de Mesquita Filho. Faculty of Agrarian and Veterinary Sciences. Graduate Program in Veterinary SurgeryAlcântara, Brenda Mendonça de. Jaboticabal. BR
  • Rocha, Thiago André Salvitti de Sá; Universidade Brasil. Department of Clinical and Veterinary Surgery. Descalvado. BR
  • Graduate Program in Veterinary SurgeryHespanha, Ana Carolina Valentim; Universidade Estadual Paulista Júlio de Mesquita Filho. Faculty of Agrarian and Veterinary Sciences. Graduate Program in Veterinary SurgeryHespanha, Ana Carolina Valentim. Jaboticabal. BR
  • Quarterone, Carolina; Centro Universitário de Maringá. Department of Veterinary Surgery. Maringá. BR
  • Sartori, Maressa da Rocha; Centro Universitário de Maringá. Maringá. BR
  • Department of Veterinary Clinical SciencesHataka, Alessandre; Universidade Estadual Paulista Júlio de Mesquita Filho. Faculty of Agrarian and Veterinary Sciences. Department of Veterinary Clinical SciencesHataka, Alessandre. Botucatu. BR
  • Department of Veterinary Clinical SciencesUscategui, Ricardo Andres Ramirez; Universidade Federal dos Vales do Jequitinhonha e Mucuri. Institute of Sciences. Department of Veterinary Clinical SciencesUscategui, Ricardo Andres Ramirez. Unaí. BR
  • Department of Clinical and Veterinary SurgeryDias, Luis Gustavo Gosuen Gonçalves; Universidade Estadual Paulista Júlio de Mesquita Filho. Faculty of Agrarian and Veterinary Science. Department of Clinical and Veterinary SurgeryDias, Luis Gustavo Gosuen Gonçalves. Jaboticabal. BR
Acta cir. bras ; 36(4): e360404, 2021. graf
Article in English | LILACS | ID: biblio-1248541
ABSTRACT
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.
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Full text: Available Index: LILACS (Americas) Main subject: Durapatite / Bone Substitutes Language: English Journal: Acta cir. bras Journal subject: General Surgery / Procedimentos Cir£rgicos Operat¢rios Year: 2021 Type: Article Affiliation country: Brazil Institution/Affiliation country: Centro Universitário de Maringá/BR / Universidade Brasil/BR / Universidade Estadual Paulista Júlio de Mesquita Filho/BR / Universidade Federal dos Vales do Jequitinhonha e Mucuri/BR

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Full text: Available Index: LILACS (Americas) Main subject: Durapatite / Bone Substitutes Language: English Journal: Acta cir. bras Journal subject: General Surgery / Procedimentos Cir£rgicos Operat¢rios Year: 2021 Type: Article Affiliation country: Brazil Institution/Affiliation country: Centro Universitário de Maringá/BR / Universidade Brasil/BR / Universidade Estadual Paulista Júlio de Mesquita Filho/BR / Universidade Federal dos Vales do Jequitinhonha e Mucuri/BR