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Osteonecrosis (Avascular necrosis (AVN), aseptic necrosis, or ischemic bone necrosis) occurs when there is a loss of blood to the bone. With the poor blood flow, the bones break down and the body can not make new bone fast enough. Eventually the bone starts to die and may collapse. Osteonecrosis can occur in more than one bone.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoIt is a type of disease which has been caused due to reduced blood flow to bones in joints.
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Deterioring jaw bone and fosamax?
Fosamax is a prescription drug used to treat older people suffering from osteoporosis. The drug was designed to increase bone mass which subsequently reduces the risk of bone fractures. One reported side effect with Fosamax is jaw osteonecrosis. A few years ago, studies also indicated drugs like Fosamax for a long time may weaken bones.
Can bones die?
no but they dissolve because of the element carbon Yes, actually they can. Remember that the bone is a living tissue in and of itself. Without a sufficient blood supply, the part of bone devoid of blood will eventually collapse in on itself and in extreme cases deteriorate the joint. There are many speculations as to what causes this disease known as Osteonecrosis, while on the other hand there have been cases where no cause could be identified. So unless you're a magical wizard named Harry Potter, you cannot simply down a bottle of Skele-Gro (who would want to), and expect a new bone to grow overnight.
What is the function of the Bone cells?
Bone cells store nutrients to make our bones strong enough to support our body. Bone cells also help your hormones develope. ... Well, I'm not sure how much the bone cells can 'store' nutrients... the cell part is small in mass/volume compared to the mineral matrix of bone itself. The cells (osteoblasts technically) more just squirt out the squishy fibers and enzymes that allow those fibers to mineralize. That mass of mineralized matrix is 'bone' in the lay sense of the word. It's hard. It's a skeleton on which all our muscles are built. But it's not a solid mass of cells like our skin or muscles are. There are a couple cells that are within this hard bone material--they're the osteocytes. They're little pipsqueak cells that aren't really big enough to do much and they're very very stuck in one position (just like Han Solo in carbonite). But they're holding 'hands' with one another and reaching out to the cells on the surface and they're not dead (you hope. it's big trouble if they die 'cause it can lead to osteonecrosis where your bone can crumble apart. and that sucks.), so the osteocytes probably do something. There are osteoblasts--these little guys sit on bone in a plump little line and they squirt out the fibers that make up bone. But we've already covered this, yeah? Then there are osteoclasts. These giant fellows look something like a cross between Jabba the Hut and a Pac-Man ghost, and they really are massive. The hungry fat kids of the bone world. They're also derived from a different side of the cellular family tree than the rest of the bone cells (hematopoietic stem cells vs. mesenchymal stem cells--which is probably the only way they had the machinery to blob together into one massive used-to-be-six-cells-but-now-is-one-giant-one cell). These big guys attach to bone and eat away at the bone. The borrow through it or leave big pits. Old people have too many osteoclasts (in ratio to osteoblasts) and so their bones keep getting smaller and smaller. But let's not be too hard on the osteoclasts, 'cause we've found out recently that you can't have healthy bone without them. Something to do with 'needing to remove the old before they can call in the new'. Figures. Oh! And these are the cells that break down calcium so you can have calcium ions in your bloodstream. This is wicked important--without these ions, your muscles and nerves won't work. That would suck. There are also other bone cells, like bone lining cells.
What is the function of bone in the body?
Bone cells store nutrients to make our bones strong enough to support our body. Bone cells also help your hormones develope. ... Well, I'm not sure how much the bone cells can 'store' nutrients... the cell part is small in mass/volume compared to the mineral matrix of bone itself. The cells (osteoblasts technically) more just squirt out the squishy fibers and enzymes that allow those fibers to mineralize. That mass of mineralized matrix is 'bone' in the lay sense of the word. It's hard. It's a skeleton on which all our muscles are built. But it's not a solid mass of cells like our skin or muscles are. There are a couple cells that are within this hard bone material--they're the osteocytes. They're little pipsqueak cells that aren't really big enough to do much and they're very very stuck in one position (just like Han Solo in carbonite). But they're holding 'hands' with one another and reaching out to the cells on the surface and they're not dead (you hope. it's big trouble if they die 'cause it can lead to osteonecrosis where your bone can crumble apart. and that sucks.), so the osteocytes probably do something. There are osteoblasts--these little guys sit on bone in a plump little line and they squirt out the fibers that make up bone. But we've already covered this, yeah? Then there are osteoclasts. These giant fellows look something like a cross between Jabba the Hut and a Pac-Man ghost, and they really are massive. The hungry fat kids of the bone world. They're also derived from a different side of the cellular family tree than the rest of the bone cells (hematopoietic stem cells vs. mesenchymal stem cells--which is probably the only way they had the machinery to blob together into one massive used-to-be-six-cells-but-now-is-one-giant-one cell). These big guys attach to bone and eat away at the bone. The borrow through it or leave big pits. Old people have too many osteoclasts (in ratio to osteoblasts) and so their bones keep getting smaller and smaller. But let's not be too hard on the osteoclasts, 'cause we've found out recently that you can't have healthy bone without them. Something to do with 'needing to remove the old before they can call in the new'. Figures. Oh! And these are the cells that break down calcium so you can have calcium ions in your bloodstream. This is wicked important--without these ions, your muscles and nerves won't work. That would suck. There are also other bone cells, like bone lining cells.
Where can one find facts about osteonecrosis?
The National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) is a great resource for learning about osteonecrosis. It answers many common questions about osteonecrosis.
Does osteoporosis cause osteonecrosis?
no.... osteonecrosis may stem from ischemia, infection, malignant neoplastic disease, or trauma. that's what it said when i browsed answers.com
What is spontaneous osteonecrosis?
I typed it in on the internet, & heres what i found, this was written by, Amar Rajadhyaksha, MD,Michael Mont, MD, & Michael Levine, MD, here you goOsteonecrosis is a disease characterized by a derangement of osseous circulation that leads to necrosis of osseous tissue. Osteonecrosis of the knee has been divided into 2 separate entities: spontaneous osteonecrosis of the knee (SPONK) and secondary osteonecrosis.
Where can one find information about osteonecrosis of the jaw?
One can find more information about osteonecrosis of the jaw by contacting one's doctor or hospital. For information at home, one can do research on Wikipedia.
Osteoporosis is often treated with?
Fosamax which can cause Osteonecrosis (the bone dies)
Can taking fosamax while receiving a local with epinepherine cause osteonecrosis of the jaw?
Osteonecrosis of the jaw, generally associated with tooth extraction and/or local infection, often with delayed healing, has been reported in patients taking bisphosphonates(fosamax).
What is the medical term meaning bony necrosis?
Osteonecrosis means bony necrosis.
What would happen if during an accident the periosteum and muscle were removed from the side of a broken long bone?
Osteonecrosis ( decay of a bone )
What is a synonym for bony necrosis?
Bony necrosis is the death of bone tissue caused by poor blood supply. A synonym for bony necrosis is osteonecrosis.
Was there any reported side effects of peptO-bismol related to joint effusion osteonecrosis of hip?
yes, peptomismol should only be used for transient diarrhea
What are some symptoms of avascular necrosis?
Avascular Necrosis, or Osteonecrosis, has many different symptoms. Some of the symptoms of this disorder are pain when applying pressure to the affected bone and inability to use certain joints.
What is the medical term meaning death of bone tissue?
Osteonecrosis is the general term meaning death of bone tissue due to an insuffficient blood supply, infection, malignancy, or trauma.Death of bone tissue to to insufficient blood supply is a subset of osteonecrosis; this more specific condition may be called avascular necrosis (AVN), bone infarction, aseptic necrosis, or ischemic bone necrosis.Osteonecrosis
