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Biomechanical evaluation of a new femoral stem design for total hip replacement in a canine model
Faria, Luís Guilherme de; Minto, Bruno Watanabe; Department of Medicine and Locomotive Apparatus RehabilitationShimano, Antonio Carlos; Department of Medicine and Locomotive Apparatus RehabilitationMacedo, Ana Paula; Department of Veterinary Clinic and SurgeryDiogo, Lucia Maria Izique; Department of Veterinary Clinic and SurgeryDreibi, Rafael Manzini; Department of Veterinary Clinic and SurgeryNobile, Matheus; Santos Junior, Wanderley Severo; Kawamoto, Fernando Yoiti Kitamura; Franco, Guilherme Galhardo; Dias, Luis Gustavo Gosuen Gonçalves.
  • Faria, Luís Guilherme de; Universidade Estadual Paulista Julio de Mesquita Filho. Postgraduate Program in Veterinary. Jaboticabal. BR
  • Minto, Bruno Watanabe; Universidade Estadual Paulista Julio de Mesquita Filho. Postgraduate Program in Veterinary. Jaboticabal. BR
  • Department of Medicine and Locomotive Apparatus RehabilitationShimano, Antonio Carlos; Universidade de São Paulo. Medical School of Ribeirão Preto. Department of Medicine and Locomotive Apparatus RehabilitationShimano, Antonio Carlos. Ribeirao Preto. BR
  • Department of Medicine and Locomotive Apparatus RehabilitationMacedo, Ana Paula; Universidade de São Paulo. Medical School of Ribeirão Preto. Department of Medicine and Locomotive Apparatus RehabilitationMacedo, Ana Paula. Ribeirao Preto. BR
  • Department of Veterinary Clinic and SurgeryDiogo, Lucia Maria Izique; Universidade Estadual Paulista Julio de Mesquita Filho. Faculty of Agrarian and Veterinary Sciences. Department of Veterinary Clinic and SurgeryDiogo, Lucia Maria Izique. Jaboticabal. BR
  • Department of Veterinary Clinic and SurgeryDreibi, Rafael Manzini; Universidade Estadual Paulista Julio de Mesquita Filho. Faculty of Agrarian and Veterinary Sciences. Department of Veterinary Clinic and SurgeryDreibi, Rafael Manzini. Jaboticabal. BR
  • Department of Veterinary Clinic and SurgeryNobile, Matheus; Universidade Estadual Paulista Julio de Mesquita Filho. Faculty of Agrarian and Veterinary Sciences. Department of Veterinary Clinic and SurgeryNobile, Matheus. Jaboticabal. BR
  • Santos Junior, Wanderley Severo; Universidade Federal Rural do Rio de Janeiro. Department of Veterinary Clinic and Surgery. Rio de Janeiro. BR
  • Kawamoto, Fernando Yoiti Kitamura; Universidade Estadual Paulista Julio de Mesquita Filho. Postgraduate Program in Veterinary. Jaboticabal. BR
  • Franco, Guilherme Galhardo; Universidade Estadual Paulista Julio de Mesquita Filho. Postgraduate Program in Veterinary. Jaboticabal. BR
  • Dias, Luis Gustavo Gosuen Gonçalves; Universidade Estadual Paulista Julio de Mesquita Filho. Postgraduate Program in Veterinary. Jaboticabal. BR
Acta cir. bras ; 36(5): e360506, 2021. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1278104
ABSTRACT
ABSTRACT Purpose To evaluate the biomechanical properties of a novel total hip replacement femoral stem. Methods Eight pairs of femurs from dog cadavers were used. The femurs were separated into different groups. A novel femoral stem with a convex proximal portion (Stem B) was biomechanically evaluated and compared to awell-known veterinary collared stem (Stem A). Femoral stems were inserted into the contralateral femurs from the same dog, forming 16 constructs. A flexo-compression load was applied on the axial axis of each sample. Maximum strength, deflection, stiffness, and energy absorption were analysed. Results Group B constructs showed significantly higher values (p ? 0.05) for the variables, except stiffness. The mean maximum strength was 1,347 ± 357 N for Group A and 1,805 ± 123 N for Group B (p ? 0.0069). The mean deflection was5.54 ± 2.63 mm for Group A and 10.03 ± 3.99 mm for Group B (p ? 0.0056). For the energy variable, the force was 6,203 ± 3,488 N/mm for Group A and 12,885 ± 5,056 N/mm for Group B (p ? 0.0054). Stem B had greater maximum strength, deflection, and energy. Conclusions The new stem was effective in neutralizing the impact of axial flexion-compression stresses during biomechanical tests in cadaveric models.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Arthroplasty, Replacement, Hip Type of study: Prognostic study Language: English Journal: Acta cir. bras Year: 2021 Type: Article Institution/Affiliation country: Universidade Estadual Paulista Julio de Mesquita Filho/BR / Universidade Federal Rural do Rio de Janeiro/BR / Universidade de São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Arthroplasty, Replacement, Hip Type of study: Prognostic study Language: English Journal: Acta cir. bras Year: 2021 Type: Article Institution/Affiliation country: Universidade Estadual Paulista Julio de Mesquita Filho/BR / Universidade Federal Rural do Rio de Janeiro/BR / Universidade de São Paulo/BR