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Anonymous users2024-02-07Total hip arthroplasty is usedBone cement technology is of great significance for the long-term stability of the prosthesis.
The first generation, i.e., manual agitation, does not pay attention to medullary cavity irrigation, does not use distal plugs, and fills bone cement by hand. In the 2nd generation, the cement is still churned by hand, but the importance of flushing the medullary cavity has been recognized, and the cement is injected with a cement gun using a distal plug. The third generation of vacuum stirring, pressurized pulse irrigation of the femoral bone marrow cavity, compression of bone cement gun injection of bone cement, femoral prosthesis center and various types of distal plug applications.
Precautions and key points for bone cement:
Forehead filling, head filling, and back of the head filling, all three of which are filled with bone cement, it is worth mentioning that if there are muscles on both sides of the filling site, it cannot be filled. As far as the filling effect is concerned, bone cement can achieve the effect of plumpness correction, which is more suitable for our human body's adaptability, and this kind of shaping is relatively long-lasting, good living habits, and can even be used for life.
The technical level is a more hardcore thing, but for ourselves, we need to understand it. Its safety, which is also our most noteworthy point, bone cement is the use of the United States SPA and Food and Drug Safety Bureau certification, for the material, strict inspection of the pass rate of the material, to ensure that the human body is harmless before allowing the hospital to use.
The above content reference: Encyclopedia - bone cement.
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Anonymous users2024-02-06Bone cement is a biomaterial used to fill the bone-implant gap or bone cavity and has self-coagulation properties. The chemical name is polymethylmethacrylate (polymethylmethacrylate pmma), also known as acrylic bone cement.
Since Charney first successfully performed total hip replacement with bone cement fixation femoral prosthesis in 1958, bone cement has been widely used in orthopedic clinics, bone cement fixation can ensure the immediate stability of the postoperative prosthesis, without any micro-movement at the bone tissue-bone cement-prosthesis interface, allowing early postoperative weight bearing, and the efficacy is certain.
Bone cement is not glue, has no adhesive properties, has no chemical connection with the bone and the prosthesis, it is a material that fills the space and transmits the load through the mechanical connection, and the modern concept believes that good fixation needs to rely on both micro-interlock and bulk-filling mechanisms.
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Anonymous users2024-02-05The most bone cement used in our orthopedics is generally in two cases.
1. Total hip replacement surgery, when using a cement-type prosthesis.
2. Vertebroplasty surgery, in which bone cement is injected into the vertebral body.
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Anonymous users2024-02-04The second-generation bone cement has made great changes in structure and material for ergonomics, and is more elastic, making it more suitable for the characteristics of the human body.
PVP, commonly known as"bone cement"。The chemical name is polyvinylpyrrolidone, which is a water-soluble polymer compound with excellent performance and wide use, which is a high-tech and high value-added fine chemical product, and is an important chemical intermediate and pharmaceutical intermediate advocated by the world. Povidone has a wide range of applications in medicine and is one of the three major new pharmaceutical excipients advocated by the world.
The most widely used are adhesives for tablets and granules.
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Anonymous users2024-02-03It's pretty much the same, with some antibiotics.
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