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The torn ligament can either be removed from the knee (most common), or preserved (where the graft is passed inside the preserved ruptured native ligament) before reconstruction through an arthroscopic procedure. ACL repair is also a surgical option. This involves repairing the ACL by re-attaching it, instead of performing a reconstruction.
Knee replacement, also known as knee arthroplasty, is a surgical procedure to replace the weight-bearing surfaces of the knee joint to relieve pain and disability, most commonly offered when joint pain is not diminished by conservative sources. [1] [2] It may also be performed for other knee diseases, such as rheumatoid arthritis.
Ti-6Al-7Nb is produced by powder metallurgy methods. The most common methods are hot pressing, metal injection mouldering and blending and pressing. In the production of Ti-6Al-7Nb, usually a sintering temperature between 900-1400 o C is used. Altering the sintering temperature gives the Ti-6Al-7Nb different properties such as different ...
The high molecular weight makes it a very tough material, but results in less efficient packing of the chains into the crystal structure as evidenced by densities of less than high-density polyethylene (for example, 0.930–0.935 g/cm 3). UHMWPE can be made through any catalyst technology, although Ziegler catalysts are most common.
For most products loadings are between 10 and 35%, high loadings are used for plastisols: 34% Flame retardants: 1–30: Being petrochemicals, most plastics burn readily, flame retardants can prevent this: Brominated flame retardants, chlorinated paraffins: Non-chlorinated organophosphates are ecologically safer, though often less efficient: 13% ...
In medicine, a prosthesis (pl.: prostheses; from Ancient Greek: πρÏŒσθεσις, romanized: prósthesis, lit. 'addition, application, attachment'), [1] or a prosthetic implant, [2] [3] is an artificial device that replaces a missing body part, which may be lost through physical trauma, disease, or a condition present at birth (congenital disorder).
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