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Which among the following biomaterials can be potentially retrieved and stored?
1. Skin
2. Bones
3. Ligaments and tendons
4. Heart valves
5. Corneas
Choose the correct answer:
3,4&5 only
2,4&5 only
1,2,3&5 only
All the above
Biomaterials that can be potentially retrieved and stored – Skin: It is used as a biological dressing, in cases of major burns. It helps prevent infections and does not need to be changed every day – it can be kept for a couple of weeks, giving the patient time to recover. Bones: from limbs can be stored and used to replace parts that are damaged or diseased. Bone grafts from banks act as scaffolds for support. They could be used in cases of trauma where there is bone loss, in sports injuries and in cancer cases where parts of the bone and joint cartilage die. The upper end of the shin bone, lower end of the thigh bone and the head of thigh bone can be retrieved for use. Ligaments and tendons: These can be used in cases of sports injuries involving multiple ligaments. In some cases, it is difficult to use the patient’s own. The Achilles tendon (ankle), the Peroneal tendon (leg to ankle), the Patellar tendon (front of the knee) and the Meniscus (a shock absorber between the thigh bone and leg bone) can be procured for storage. Bone products: Bone powder is made by crushing bones, generally those that would otherwise be disposed of – such as those parts replaced during hip replacement surgeries.
These are used to treat various kinds of defects – in dentistry, skeletal and joint reconstruction procedures. Amniotic membrane: This is the wall of the amniotic sac. When a baby is delivered, the sac ruptures. The sac can be used as a biological dressing for burns, bed sores, diabetic ulcers and skin reactions to radiation. Heart valves: Heart valves can be retrieved and stored to be used in valve replacement procedures. The advantage with such valves is that the patient does not need blood thinners. They are also cheaper than artificial valves. However, they last about 15 years and another procedure may be subsequently required. Even in cases where the heart can’t be used, the valve can be retrieved for storage. Usually, the aortic valve is procured. Corneas: Corneal transplants are used in cases when the cornea becomes opaque – due to injuries, infections, birth defects or rarely after surgeries.
By: Shubham Tiwari ProfileResourcesReport error
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