Effect of the length of the superficial plate on bending stiffness, bending strength and strain distribution in stacked 2.0â2.7 veterinary cuttable plate constructs
نویسندگان
چکیده
Objectives: Use of stacked veterinary cuttable plates (VCP) increases the construct stiffness, but it also increases the stress protection and concentrates the stress at the extremities of the implants. We hypothesized that by shortening the superficial plate, it would not reduce the stiffness of the construct, but that it would reduce the stress concentration at the plate ends. Methods: A 3 mm fracture gap model was created with copolymer acetal rods, stacked 2.0–2.7 VCP and 2.7 screws. The constructs consisted of an 11-hole VCP bottom plate and a 5-, 7-, 9or 11-hole VCP superficial plate. Five of each construct were randomly tested for failure in four-point bending and axial
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