The strength of bone-metal block for different types of implants surfaces under the conditions of normal bone and osteoporosis in rats

Journal Title: Orthopaedics, Traumatology and Prosthetics - Year 2016, Vol 602, Issue 1

Abstract

Fixing the acetabular component of prosthesis in the conditions of osteoporosis and changes in acetabulum anatomy is an actual problem of modern orthopedics. The goal: to perform a comparative analysis of the strength of bone-metal block for the different type of implant surfaces in the conditions ofnormal bone and in the simulation of osteoporosis in rats. The methods: experimental studies of femur strength were carried in 60 laboratory animals (rats). The animals were divided into two groups of 30 animals each: I — relatively healthy, II — osteoporosis induced by ovariectomy. 6 subgroups were formed in each group of animals. Implants of such differentmaterials as porous titanium, tantalum porous Trabecular Metal (Zimmer), titanium coated with Gription (DePuy), Stiktite (Smith & Nephew), Trabecular Titanium (Lima), Tritanum (Stryker) were used to fill a hole-like defect in distal metaphysis of femur. The animals were taken out of experiment 14 days after implanta­tion and biomechanical investigation was performed to assess the strength of operated and contralateral femurs. Longitudinal axial load using a metal rod was applied to femoral head. Load value gradually increased to complete destruction of anatomical specimen and measured. The results: femurs with implants from porous tantalum Trabecular Metal and Stiktitewith stood the maximum load in the conditions of normal bone density. Specimen of femurs with implanted porous titanium (the most weak) and tantalum Trabecular Metal (the most solid) composed separate subsets in the conditions of simulated osteoporosis. The conclusions: the comparative analysis of biomechanical investigation revealed that bone with implants from porous tantalum withstands the maximum breaking load in the conditions of normal and osteoporotic bone.

Authors and Affiliations

Volodymyr Filipenko, Mykhaylo Karpinsky, Olena Karpinska, Mandus Akonjom, Stanislav Bondarenko

Keywords

Related Articles

State of venous blood flow in the lower extremitiesof patients with fractures of the tibia after plate osteosynthesis

Violation of antegrade blood flow, deep vein thrombosis and pulmo­nary embolism (PE) presents the complex problem in the treatment of trauma patients. The goal: to examine the state of antegrade blood flow in the vessel...

Functional spine analysis at surgical treatment of burst fractures of thoracic and lumbar spine [Аналіз функціонального стану хребта за умов хірургічного лікування вибухових переломів грудного та поперекового відділів]

Burst fracture — is traumatic injury under the influence of high-energy axial compression which results multifragmentary vertebrae fracture with penetration of bone fragments into spine canal and paravertebral tissues. O...

MRI signs of anterior cruciate ligament graft restructuring in bone canal

One of the reason for succeed anterior cruciate ligament reconstruction is the process of graft remodeling on the border «tendon-bone» in the bone canal. This factor can influence on the mechanical stability of the knee...

The modern concept of diagnosis and treatment of gunshot and mine-explosive injuries of limbs

Purpose: to analyze medical care experience in the treatment of patients with limb wounds in the system of staged military treatment-evacuation supplying (TES) and to build up recommendation for common understanding in p...

Download PDF file
  • EP ID EP204426
  • DOI 10.15674/0030-59872016172-77
  • Views 278
  • Downloads 0

How To Cite

Volodymyr Filipenko, Mykhaylo Karpinsky, Olena Karpinska, Mandus Akonjom, Stanislav Bondarenko (2016). The strength of bone-metal block for different types of implants surfaces under the conditions of normal bone and osteoporosis in rats. Orthopaedics, Traumatology and Prosthetics, 602(1), 72-77. https://europub.co.uk/articles/-A-204426