| What's the background for development of Ceramic based hip joint Prostheses ? |
Ceramic based Hip Joint Prostheses have gained wide popularity all over the world since its introduction in 1970. Initially alumina based hip implants were used in France and Germany but now almost all advanced countries use Ceramic based hip joints. In India most of these Prostheses are made out of stainless steel. Main disadvantage of metallic Prostheses are their bio-degradation with time due to mechanical wear or chemical disintegration and as a result requiring to be retrieved and replaced by a new set every ten to twelve years. Alumina based hip joint, developed by CGCRI, has adequate mechanical, chemical and tribological properties as specified by ISO for similar applications and give a much longer trouble free life. In India, this imported Prostheses is available at exorbitant price and thus only a handful of people can afford the same. |
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| What are the most widely used Orthopaedic implants commonly used to replace ailing hip joints of the patients ? |
Hip Joint Prostheses are the most widely used Orthopaedic Implants commonly used to replace ailing hip joints of the patients suffering from osteo-arthritis, trauma etc due to accidents, bone deformity or any other degenerative bone diseases. |
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| What's the number of patients suffering every year from ailing hip joints ? |
Number of patients suffering every year through out the world is well over one million per annum and figure in India is about 400 thousands. |
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| What's the number of hip operations carried out in India ? |
| In India number of operations carried out every year is about 100 thousands only as most of the patients cannot afford Prostheses and operation costs. |
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| What's the most widely used Hip Prostheses in India is made of ? |
In India, most of the Hip Prostheses are made of Stainless Steel (SS 316L).
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| What are the disadvantages associated with metallic Hip Prostheses ? |
| Metallic Hip Prostheses wear out faster and thus patient may require revision surgery after 10 to 12 years. |
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| What's the most widely used Hip Prostheses in developed countries like UK, Japan, America etc ? |
| Hip Prostheses comprising of Ceramic Head and Ti-V-Al alloy based stems are mostly used in developed countries. |
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| Is ceramic made Prostheses effective ? Are Ceramic Heads manufactured in India available ? |
Yes. Ceramic made prostheses is expected to give trouble free service for over 20-25 years. Central Glass and Ceramic Research Institute, a constituent laboratory of Council of Scientific and Industrial Research, has developed technology for indigenous manufacture of Ceramic Head. These Heads manufactured under processes having both ISO and CE Certifications are available at a much lower price than imported equivalents.
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| Have Ceramic Heads manufactured in India been used on human Patients ? |
Yes. Ceramic made Prostheses manufactured in India have been used on several patients in India and post operative results are highly encouraging. Ceramic Heads manufactured as per CGCRI technology are bio inert in nature and considerably cheaper than imported ones and physical and chemical properties satisfactorily conform to the specifications as per ISO Standard 6474 (ISO Title : Implants for surgery – ceramic material based on alumina) IS:5347 (Post 9) – 1984. |
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Are Hip Prostheses with Ceramic Head and Ti-6Al-4V/SS316L/Co-Cr alloy stem superior than the ones available in India ? |
Yes. Hip Prosthesis with Ceramic Head and Ti-6Al-4V/SS316L/Co-Cr alloy stem are superior than the ones available in India because of following reasons.
- Superior bio-compatibility.
- Enhanced corrosion resistance when compared with complete Prostheses with more conventional stainless steel and cobalt chromium based alloys.
- Better wear resistance of Ceramic Heads results in a much longer performance life.
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