PMMA is a biodegradable compound. It is easily broken down by bacteria and decomposing organisms unlike other plastics. Since PMMA is obtained from plants, it possesses biomaterial properties and physical properties of living organisms. Therefore, it can be easily broken down to simpler elements that match the bone structure creating a lifetime joint. (Reiker 121) claims that the success of PMMA is far sought as some used it to fix acetabula components to transfer weights to the bones.
When compared to plastics, polymers have some similarities in chemical structures with cells, ligaments, and tendons while plastics don’t. A few months after application, PMMA breaks down and the body produces a connective tissue to fill out the space. It is approximated at six months. Hence, their presence in the human body will not fetch infections or introduce toxic substances.
They have the ability to decompose faster. When PMMA is applied in bone reconstruction, after a short period (roughly 6 months), it dissolves in the bones creating a joint resistant to infection, cold and fracture. Chances of swelling and fractures are minimized (Pavirzi & Brian 10).
Biopolymers are easily available. Unlike common plastics that have to be obtained from crude oil products, PMMA can be easily obtained from plants. Unlike the polymethyl carbonates which required de-carbonation, PMMA is easy to work with ant its process of extraction is brief and inexpensive. In conclusion, since its commencement, knee arthroplasty, has always been a highly successful exercise. However, with the advancements in technology and way of life, there is need for better knee replacement techniques. Due to its compressive strength, PMMA, can be used as the spacer in the part of the knee . it can withstand compressional and tensional forces. They will not only bring back happy customers but also build confidence in health institutions.
Reiker O.. "Mechanical effects of reaming and implantation of acrylic cement into the medullary cavity of bones." Archives of Orthopaedic and Traumatic Surgery 103.2 (1984): 120-124. Print.
Parvizi, Javad & Brian Klatt. Essentials in total knee arthroplasty. Thorofare, NJ: SLACK, 2011. Print.
Scuderi, Giles R., and Alfred J. Tria.Surgical techniques in total knee arthroplasty. New York: Springer, 2002. Print.
Nag, Soumya, and Rajarshi Banerjee. "Fundamentals of Medical Implants." ASM International. Version 23. University of North Texas, n.d. Web. 21 Oct. 2014. http://www.asminternational.org/documents/10192/1850200/05285G_Sample.pdf/b7587321-0c8d-40cb-8fd4-f92c409cc400