29 January 2008
Med Sci Monit 2008; 14(2): BR35-40 :: ID: 734747
Clinical success of bone implants is critically related to the interaction between the implant surface and the surrounding tissue. The polymer poly(bis(trifluoroethoxy)phosphazene) (PTFEP) is a promising, highly biocompatible surface coating which also inhibits the adsorption of granulocytes, macrophages, inflammatory cells, bacteria, and platelets. However, there is limited clinical experience of PTFEP as a coating for bone implants. Therefore PTFEP-coated titanium implants in an animal model were examined.
Material and Method
PTFEP-coated titanium cylinders were implanted into the lateral femoral condyles of rabbits. Osseointegration was examined six weeks and six months after implantation using a non-destructive mechanical pull-out measurement and a histological analysis.
The results indicate improved osseointegration of PTFEP-coated implants. Six weeks after implantation, the PTFEP-coated implants showed a higher stiffness (pull-out length [pol]=7.1+/-2.0 microm) compared with uncoated cylinders (pol=10.2+/-3.4 microm, p<0.05). Six months after implantation, the mechanical properties of both implants had adjusted, and histological analysis revealed an increased bone-implant interface of PTFEP-coated cylinders compared with the first 6 weeks (17.5% vs. 8.2% in controls, p<0.05).
Taken together, the results of this preliminary study indicate promising applications of PTFEP as a coating material for bone implants.
Keywords: Time Factors, Titanium, Rabbits, Polymers, Prostheses and Implants, Organophosphorus Compounds, Osseointegration - physiology, Materials Testing, Femur - surgery, Coated Materials, Biocompatible, Biomechanical Phenomena
01 December 2021 : EditorialEditorial: Cardiovascular Complications at One Year After SARS-CoV-2 Infection are Independent of Underlying Cardiovascular Risk Factors or Severity of COVID-19
Med Sci Monit 2022; 28:e937048
04 May 2022 : Clinical ResearchEffects of Wearing Face Masks on Exercise Capacity and Ventilatory Anaerobic Threshold in Healthy Subjects ...
Med Sci Monit In Press; DOI: 10.12659/MSM.936069
22 April 2022 : Clinical ResearchFactors Associated with Falls During Hospitalization for Coronavirus Disease 2019 (COVID-19)
Med Sci Monit In Press; DOI: 10.12659/MSM.936547
27 April 2022 : Meta-AnalysisEffect of the COVID-19 Pandemic on Serum Vitamin D Levels in People Under Age 18 Years: A Systematic Review...
Med Sci Monit In Press; DOI: 10.12659/MSM.935823
20 May 2022 : Clinical ResearchEfficacy of Focused Extracorporeal Shock Wave Therapy in Chronic Low Back Pain: A Prospective Randomized 3-...
Med Sci Monit In Press; DOI: 10.12659/MSM.936614
19 May 2022 : Clinical ResearchAssociation Between Serum Homocysteine Levels and Severity of Diabetic Kidney Disease in 489 Patients with ...
Med Sci Monit In Press; DOI: 10.12659/MSM.936323
18 May 2022 : Clinical ResearchPhysical and Psychosocial Concept Domains Related to Health-Related Quality of Life (HRQL) in 50 Girls and ...
Med Sci Monit In Press; DOI: 10.12659/MSM.936801
Most Viewed Current Articles
31 Dec 1969 : Clinical ResearchRetrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...
Med Sci Monit 2021; 27:e935379
31 Dec 1969 : Review articleA Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...
Med Sci Monit 2022; 28:e936292
31 Dec 1969 : Review articleLong-Term Respiratory and Neurological Sequelae of COVID-19
Med Sci Monit 2020; 26:e928996