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Scientists Create Artificial Bones From Wood

steve_thatguy writes "According to Discovery News, Italian scientists have made artificial bone from wood. Created by blasting wood blocks with heat until they are nearly pure carbon then coating them with calcium, the scientists say the material allows bones to heal faster and more securely. Unlike titanium, the wood-based artificial bones flex slightly much like real bone, and the porous nature of the wood allows for better bio-activity with surrounding tissue. Though human testing is still likely years away, the material is currently being used successfully in sheep and may have other industrial applications."

138 comments

  1. Bones out of wood? by oahazmatt · · Score: 4, Funny

    Well that's not good. Now if they bleed they're going to attract ants.

    --
    Those who believe the Internet is private,
    find their privates are on the Internet.
    1. Re:Bones out of wood? by Anonymous Coward · · Score: 0

      According to the summary, wood is the wrong word. What they are using is closer to charcoal.

    2. Re:Bones out of wood? by Brian+Gordon · · Score: 1

      How are ants going to swim out to a pirate ship? I'd say their peg legs are safe.

    3. Re:Bones out of wood? by Zantac69 · · Score: 1

      Oh I can see it now...giving those Terminex commercials a new twist...

      :ding dong:
      Termite: My car broke down and I was wondering if I could use your phone to call my brother. Hey - did you break your leg recently?

      --
      1331461 is only semiprime *sigh* Alas - I am just short of 1337.
    4. Re:Bones out of wood? by FudRucker · · Score: 1

      i would be more worried about termites

      --
      Politics is Treachery, Religion is Brainwashing
    5. Re:Bones out of wood? by Anonymous Coward · · Score: 5, Funny

      that would be like me saying your brain is made of retard, when in fact, retard is just the end result

    6. Re:Bones out of wood? by AshtangiMan · · Score: 1

      Ha Ha. Damn that made me laugh out loud. How am I going to work this into conversation?

    7. Re:Bones out of wood? by HTH+NE1 · · Score: 1

      I'd be more worried about garage bands. Better get whatever limb is replaced tattooed with "POST NO BILLS".

      --
      Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
    8. Re:Bones out of wood? by Anonymous Coward · · Score: 0

      Considering he is worried about ants eating the bones when they are inside the body, you are the retard AC. And then AC was a retard.

    9. Re:Bones out of wood? by treeves · · Score: 1

      I'd say they covered that by saying "created from". Kind of like "Scientists create computer chips from sand!"

      --
      ...the future crusty old bastards are already drinking the Kool-Aid.
    10. Re:Bones out of wood? by Anonymous Coward · · Score: 0

      Well that's not good. Now if they bleed they're going to attract ants.

      Look on the bright side -- Woody Woodpecker will be delighted.

      Hmmm, captcha = doctors

    11. Re:Bones out of wood? by K.+S.+Kyosuke · · Score: 4, Funny

      And Christian fundamentalists. If you get enough of these bone replacements, they might start calling you a witch.

      --
      Ezekiel 23:20
    12. Re:Bones out of wood? by Mephistro · · Score: 0
      On the other hand, you wouldn't drown easily :)

      And please someone explain why was the parent post modded Flamebait???!!!

    13. Re:Bones out of wood? by rs79 · · Score: 2, Funny

      Got bone? No, just a woody.

      --
      Need Mercedes parts ?
    14. Re:Bones out of wood? by Anonymous Coward · · Score: 0

      Who am I calling a retard, retard!

    15. Re:Bones out of wood? by fractoid · · Score: 1

      Hey, LSD can do that to you.

      --
      Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
    16. Re:Bones out of wood? by fractoid · · Score: 2, Funny

      I'm guessing the post was a witch. Witches are flamebait, right?

      On the gripping hand, with charcoal bones you could, in emergencies, breath through your left tibia to filter out toxic gases.

      --
      Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
    17. Re:Bones out of wood? by Mr2cents · · Score: 1

      You clearly underestimate ants. Sometimes I even wonder whether they will invent interstellar travel before we do (of course they won't, but still..).

      --
      "It's too bad that stupidity isn't painful." - Anton LaVey
  2. those poor chickens with boneless breasts by goffster · · Score: 5, Funny

    They now have hope

    1. Re:those poor chickens with boneless breasts by pavon · · Score: 3, Funny

      I did my own experiment this weekend involving boneless chicken breasts sprinkled with calcium chloride, and placed over wood that had been previously heated in a vacuum till nearly carbon.

      The scientific results were tasty.

    2. Re:those poor chickens with boneless breasts by swanzilla · · Score: 5, Funny

      how humerus

    3. Re:those poor chickens with boneless breasts by bughunter · · Score: 3, Funny

      I did the same, but I used sodium chloride, and included some wood chips soaked in dihydrogen monoxide. Somewhat tastier, despite the use of the Earth's most deadly chemical.

      --
      I can see the fnords!
    4. Re:those poor chickens with boneless breasts by Em+Emalb · · Score: 1

      Gotdamn, I bet you guys are a hit at parties.

      Oh yeah? Well I used some salt and pepper and then grilled it over wet wood chips.

      --
      Sent from your iPad.
    5. Re:those poor chickens with boneless breasts by bughunter · · Score: 5, Funny

      We chemistry nerds tend to party among ourselves. And we know all the best chemicals.

      So yes, our parties are quite entertaining.

      Plus, we like to blow shit up.

      /hold my ethyl alcohol solution and watch this

      --
      I can see the fnords!
    6. Re:those poor chickens with boneless breasts by Golddess · · Score: 1

      Wood chips soaked in dihydrogen monoxide? Doesn't that kinda make the wood chips unable to hold a flame? Or do I misunderstand the cooking process?

      --
      "I'm not sure I like the fugnutish tone you used in your post!" -RogL (608926)-
    7. Re:those poor chickens with boneless breasts by NotBornYesterday · · Score: 4, Interesting

      I don't know if you were among this particular group of partying nerds, but I seem to remember a website from about 15 yrs ago, built by the faculty of the engineering department of some college. It showed pictures of their annual picnic. Every year, there was a contest to see who could get the briquettes ready the quickest. Year after year, they got more inventive, finally culminating when someone took 1) a grill filled with charcoal, 2) a lit cigarette at the bottom of the pile to act as a source of ignition, and 3) a bucket of liquid oxygen at the end of a long pole. The result (yes, there were pictures) was a 10-foot column of fire, and the total destruction of the el cheapo grill.

      I wish I could find that website again. I wonder if they have beaten their old record. They must have by now.

      --
      I prefer rogues to imbeciles because they sometimes take a rest.
    8. Re:those poor chickens with boneless breasts by thpr · · Score: 5, Informative
    9. Re:those poor chickens with boneless breasts by linzeal · · Score: 1

      Us robotic nerds party with the Bunsen burner crowd too! How us else would we make our flamethrowers for our wee robotic warriors?

    10. Re:those poor chickens with boneless breasts by maxume · · Score: 2, Informative

      The wet wood chips are there for flavor, not for fire.

      --
      Nerd rage is the funniest rage.
    11. Re:those poor chickens with boneless breasts by Anonymous Coward · · Score: 0

      Did he cook it with a can of sternum?

    12. Re:those poor chickens with boneless breasts by Anonymous Coward · · Score: 1, Funny

      Don't you know Dihydrogen Monoxide is listed as a greenhouse gas?

      Do you realize that you have added to global warming!

      The sky is falling!

      The sky is falling!

    13. Re:those poor chickens with boneless breasts by Orange+Crush · · Score: 1

      The wood chips aren't meant to burn, but smolder and provide smoke for flavor.

    14. Re:those poor chickens with boneless breasts by Earthquake+Retrofit · · Score: 1

      I can't believe you found that in just three minutes.

      Steve

      --
      Fifty years of Yippie! 1968-2018
    15. Re:those poor chickens with boneless breasts by xmundt · · Score: 1

      greetings and Salutations...
                I suspect that it only took three minutes because THPR took time to WATCH the video too.
      regards
      dave mundt

      --
      YAB - http://blog.beemandave.com/
    16. Re:those poor chickens with boneless breasts by Ihmhi · · Score: 1

      Wow, I didn't know that chicken guy had his own college!

      No wonder they know so much about grilling!

    17. Re:those poor chickens with boneless breasts by executivechaos · · Score: 1

      GO BOILERS!!!

    18. Re:those poor chickens with boneless breasts by navygeek · · Score: 1

      Boiler Up, baby!

    19. Re:those poor chickens with boneless breasts by NotBornYesterday · · Score: 1

      Gracias.

      --
      I prefer rogues to imbeciles because they sometimes take a rest.
  3. Sheep with wooden legs? by mr_flea · · Score: 4, Funny

    So... if they're giving sheep wooden legs... does that mean they're creating pirate sheep? Are they also giving them eye patches and pet parrots?

    1. Re:Sheep with wooden legs? by Anonymous Coward · · Score: 4, Funny

      And here we have a very strange internet rule 34 confirmation.

    2. Re:Sheep with wooden legs? by sentientbeing · · Score: 3, Funny

      Theyre enhancing sheep with charcoal bones to create legs of lamb that can BBQ themselves

      --

      ------
      beware he who would deny you access to information, for in his mind he dreams himself your master
  4. mmmmhm by nnnich · · Score: 4, Funny

    let washington's dentist be chastised no more!

    --
    she was the daughter of a wealthy florentine pogen read em and weep was her adjustable slogan
  5. Prior art by srussia · · Score: 4, Funny

    I'll be claiming me mateys...arr!

    --
    Set your phasers on "funky"!
  6. Leave it to the Italians... by bughunter · · Score: 2, Funny

    ... to invent something that turns orthopedic surgeons into woody boners.

    (Yes. I went there.)

    --
    I can see the fnords!
    1. Re:Leave it to the Italians... by snspdaarf · · Score: 3, Funny

      AND mix in sheep. Urk.

      --
      Why, without your clothes, you're naked, Miss Dudley!
    2. Re:Leave it to the Italians... by ksheff · · Score: 1

      Hell, most of their surgical instruments look like something out of a carpenters shop, so this isn't surprising.

      --
      the good ground has been paved over by suicidal maniacs
    3. Re:Leave it to the Italians... by Anonymous Coward · · Score: 0

      AND mix in sheep. Urk.

      Dang, I read your "urk" as UK.

    4. Re:Leave it to the Italians... by tepples · · Score: 2, Funny

      Hell, most of their surgical instruments look like something out of a carpenters shop

      Only if the surgeon's name happens to be Dr. Geppetto Baccigaluppo.

    5. Re:Leave it to the Italians... by Sulphur · · Score: 1

      A physician was asked what course had helped him the most in his career. He replied "carpentry."

    6. Re:Leave it to the Italians... by reboot246 · · Score: 1

      It is true for orthopedic surgeons. They use saws, drills, rasps, hammers, and such. I woke up during my second hip replacement and I could hear power tools!

      These new "bones" in the article look interesting, but I'll take my titanium joints any day. I love setting off metal detectors and seeing the look on the rent-a-cop's face. :)

    7. Re:Leave it to the Italians... by fractoid · · Score: 1

      I woke up during my second hip replacement and I could hear power tools!

      Urp. That made me feel distinctly queasy.

      I love the idea of upgrades for my body though. If I can make my car better by installing higher quality parts, why shouldn't I do it for myself?

      --
      Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
    8. Re:Leave it to the Italians... by bhiestand · · Score: 1

      AND mix in sheep. Urk.

      Dang, I read your "urk" as UK.

      No, that's "NZ" in the kiwi alphabet.

      --
      SWM seeks new sig for a brief fling
    9. Re:Leave it to the Italians... by ksheff · · Score: 1

      That's the 2nd time in a week that I've heard of someone waking up during hip replacement surgery.

      --
      the good ground has been paved over by suicidal maniacs
    10. Re:Leave it to the Italians... by reboot246 · · Score: 1

      Before each operation I actually tried to talk my doctor into letting me stay awake during the surgery and watch it on a monitor. He said, "No."

      It would have been fascinating! When I woke up during the second hip replacement, I felt no pain, but I could hear everything that was going on. I guess I should have kept my mouth shut, but I just had to say something. In a few seconds I was right back asleep. Drat!

  7. Mythbusters by camperdave · · Score: 1

    Bones out of wood. Wow! I guess Buster's upgrade to wooden bones was prescient.

    --
    When our name is on the back of your car, we're behind you all the way!
  8. Artificial bones in sheep? by Sta7ic · · Score: 4, Funny

    That's what I call some baaaahhhd medicine.

  9. Wow by Anonymous Coward · · Score: 2, Funny

    Now the goverment is going to create the worst mutant ever: Weapon W.

  10. Been Doing This For Years by basementman · · Score: 2, Funny

    I've been making bones from wood since puberty, these scientists obviously never took health class in middle school.

    1. Re:Been Doing This For Years by ArsonSmith · · Score: 4, Funny

      And putting it in sheep too right?

      --
      Paying taxes to buy civilization is like paying a hooker to buy love.
    2. Re:Been Doing This For Years by Shikaku · · Score: 1

      For scientific purposes, yes.

      Wood bone will be so effective one day everyone will that wants to be boned will be boned!

  11. Wooden bone, punchline. by HornWumpus · · Score: 4, Funny

    Pinocchio: 'Who needs a girlfriend now that I have sandpaper.'

    --
    John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
  12. So thats how Seamus is alive! by Algorithmn · · Score: 1
  13. Re:Bone? by LordLimecat · · Score: 0

    except humans dont have a penile bone, so no.

  14. Mutant zombie sheep... by Frosty+Piss · · Score: 2, Funny

    ...the material is currently being used successfully in sheep and may have other industrial applications/b>

    Mutant zombie sheep used as forced labor in factories?

    --
    If you want news from today, you have to come back tomorrow.
  15. Move Over Lee Majors by bradorsomething · · Score: 5, Funny

    Gentlemen, we can rebuild him. We can make him stronger... faster... using the latest in prefabrication materials from Home Depot. He is... the Sixty-Five Dollar Man.

    1. Re:Move Over Lee Majors by Jason+Levine · · Score: 2, Funny

      That's too expensive. We can rebuild him using Walmart for just $42 and change.

      --
      My sci-fi novel, Ghost Thief, is now available from Amazon.com.
    2. Re:Move Over Lee Majors by Anonymous Coward · · Score: 0
  16. More fun: by Hurricane78 · · Score: 1

    Creating artificial wood from boners!

    Now at your local brothel!

    --
    Any sufficiently advanced intelligence is indistinguishable from stupidity.
  17. Steven Wright was right by HTH+NE1 · · Score: 4, Funny

    "I saw a man with a wooden leg, and a real foot." -- Steven Wright

    --
    Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
    1. Re:Steven Wright was right by CrashandDie · · Score: 1

      The clue is in the name.

  18. Very old news... by ak_hepcat · · Score: 4, Funny

    Pirates have been replacing damaged or missing limbs with replacements made of wood for years!

    --
    Support FSF: Stop thinking with your wallet, and think with your imagination. (cc/non-commercial)
    1. Re:Very old news... by Chris+Burke · · Score: 1

      Pirates have been replacing damaged or missing limbs with replacements made of wood for years!

      And by using pirate methods it just goes to show how scientists from all fields are trying to reverse global warming.

      --

      The enemies of Democracy are
  19. They've discovered the Peg leg by Anonymous Coward · · Score: 0

    [pirate]Arrrr! My thinks me shoulda patented me peg leg[/pirate]

    1. Re:They've discovered the Peg leg by Dekker3D · · Score: 1

      wait. pirating a patent?! you're on to something here, man!

  20. Wood Rot? by Anonymous Coward · · Score: 0

    I guess if it's purely carbon (not ash?) you wouldn't get wood rot? How do they prevent the body attacking it as an infection either way?

    1. Re:Wood Rot? by sbeckstead · · Score: 2, Insightful

      Nearly pure carbon and calcium are probably not something that your immune system worries about. Since neither are really bio-active. There is a game in which units of wood can be traded for units of sheep. This leads to the cry during the trading part of the game "Wood for Sheep!" This gives that a whole new meaning and one we can't snicker at any more.

    2. Re:Wood Rot? by Zerth · · Score: 1

      Settlers of Catan. Yes, by shoving half a dozen sheep into a ship, you can generate wood.

      Or make cities out of them, for that matter.

    3. Re:Wood Rot? by Anonymous Coward · · Score: 0

      http://en.wikipedia.org/wiki/Settlers_of_Catan

    4. Re:Wood Rot? by mr_stinky_britches · · Score: 1

      Are you related to any Ords, by chance?

      --
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  21. A few hundred years too late for the by davidsyes · · Score: 0

    George Washingtons and other people of the time...

    --
    Previously: "Linux... Toward the Sunrise..." Now: "Linux... Toward the-- No, now, part of Every Sunrise"
  22. sounds good by bananaquackmoo · · Score: 1

    until your new bone fractures. then you get splinters of wood all over your body, which surely can't be good

    1. Re:sounds good by CrashNBrn · · Score: 1

      Apparently, not only did you not read the article, you didn't even bother to read the _Summary_ either:
      "To create the bone substitute, the scientists start with a block of wood -- red oak, rattan and sipo work best -- and heat it until all that remains is pure carbon, which is basically charcoal .

  23. Bones! by atramentum · · Score: 0

    Dammit Jim! I'm a doctor - not a magician!

  24. Now we can all say it... by Beardo+the+Bearded · · Score: 1

    Got wood for sheep?

    --

    ---
    ECHELON is a government program to find words like bomb, jihad, plutonium, assassinate, and anarchy.
  25. Black Tom Cassidy by Hardness · · Score: 1

    Oh dear God. Have we learned NOTHING from X-Men Comics?! http://en.wikipedia.org/wiki/Black_Tom_Cassidy#Transformation

  26. Pirate sheep... by Anonymous Coward · · Score: 0

    ... that's all that needs to be said!

  27. You're DOING IT WRONG by _KiTA_ · · Score: 1

    I said Cyberpunk, not Steampunk!

  28. Far too cheap by gweihir · · Score: 1, Troll

    At $850 per block or bone, doctors and medical companies will never go for it. Not enough profit to be made.

    --
    Most ACs are not even worth the keystrokes to insult them. Be generically insulted by this and ignored otherwise.
    1. Re:Far too cheap by Archangel+Michael · · Score: 0

      Of course with Obamacare the government will pay for it at the going rate of hammers (govt/norm) where a normal $20 hammer costs the govt $2000 (or more).

      --
      Agent K: A *person* is smart. People are dumb, stupid, panicky animals, and you know it.
    2. Re:Far too cheap by CorporateSuit · · Score: 1

      At $850 per block or bone, doctors and medical companies will never go for it. Not enough profit to be made.

      You got it backward. With cheaper materials come higher profits. Instead of spending $13,000 on an operation they charge you $13,500 for, they can spend $130 on an operation they charge you $10,000 for. Doctors and hospitals don't make money by using, then having to discard, extremely expensive equipment.

      --
      I am the richest astronaut ever to win the superbowl.
    3. Re:Far too cheap by Kingrames · · Score: 1

      $640,000 should be cheap enough for anybody.

      --
      If you can read this, I forgot to post anonymously.
    4. Re:Far too cheap by Anonymous Coward · · Score: 0

      [Citation Needed]

    5. Re:Far too cheap by fractoid · · Score: 1

      Few more years of this inflation and that'll get you fries and a coke.

      --
      Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
  29. Safer than Titaniam by LionKimbro · · Score: 4, Interesting

    "Paradoxically, metal or ceramic implants meant to prevent bone breaks can sometimes cause them. Current implants are significantly harder than the bone that surrounds them. Natural bone can flex slightly. In fact, stress helps build stronger bones. However, the harder implants can apply so much stress to a particular area that the bone snaps. Softer wooden implants might cause fewer bone breaks."

    Hm, this is like what I learned in Structures: or Why Things Don't Fall Down.

    The author noted that insurance companies, finding a weak wall, would often over-retrofit it. Then the building collapses, becase the weight that would have been born by the wall is displaced onto the other walls.

    He also wrote about the cult of metal. The only reason engines are made of metal, he explained, is because they have to contain very high temperatures. If it were not for that, they could be made far more efficiently with hoses and bladders. He challenged the readers to come up with ways to make things that are presently made out of metal out of other materials -- such as wood and bird feathers.

    1. Re:Safer than Titaniam by imsabbel · · Score: 1

      Somehow, those two paragraphs dont make any sense at all.

      a) Why would a strong wall move stop bearing load and overload others?
      b) There are quite a few reasons besides temperature to make stuff of metals. But why, go ahead with the birth feathers:)

      --
      HI O WISE PRINCE. WHT TOOK U SO DAM LONG?
    2. Re:Safer than Titaniam by iroll · · Score: 3, Informative

      Right. All levity aside, this could be a revolutionary medical step. Artificial bone is one of the most challenging materials science problems going, and has been for decades.

      When an artificial hip, or other load-bearing bone implant, has a higher modulus than bone (and they invariably do), they cause the load to be transmitted unevenly to the bone. The artificial hip is on a pin that goes down into the marrow on the top of the femur. In natural loading, each segment of bone (taken from top to bottom) is loaded equally in compression. With an artificial hip implanted, some of the force is transmitted directly to a deeper part of the femur. The top of the bone is loaded less heavily than it would have been under natural circumstances?

      Who cares? Your bones do. They're dynamic. When they're unloaded, they break down. So now, by unloading the top of the femur, you've given your body permission to dissolve it. Now your hip implant is bare, and only being held by its tip--fractures are the final result. This is why a hip replacement has a "lifespan" of only a few years--young people who have hips replaced have to go get new ones at some point, and have to lose a chunk of femur each time.

      Things have probably improved since I was an engineering undergrad discussing these problems (~8 yrs ago), but those are the big issues. I'm going to be really curious to read more about this.

      --
      Repetition does not transform a lie into the truth. - FDR
    3. Re:Safer than Titaniam by DragonWriter · · Score: 2, Informative

      a) Why would a strong wall move stop bearing load and overload others?

      I'm not sure if this is what GPs source was saying, but I would think the real problem with the extra-strong wall is the same with the extra-strong bones (if there is a problem with the former at all): it doesn't flex, so if its attached firmly to another weaker section, and that weaker section is subject to a load which causes the weaker section to deform, instead of the stronger section deforming elastically and removing the strain on the connection with the weaker section, the stronger section stays firm and the connection fails.

    4. Re:Safer than Titaniam by Grishnakh · · Score: 2, Interesting

      Sorry for the ignorant question, as I'm a EE, not a doctor or biomed expert.

      If hip replacements cause the body to dissolve the top of the femur because of this loading issue, then why not just replace the entire femur with a metal replacement? Why try to join two dissimilar materials this way?

      What's so hard about simply making artificial replacement bones? If you replace the entire bone, it seems that this loading issue shouldn't be a problem any more, and the only challenge is how to attach tendons and cartilage so the joints work properly.

    5. Re:Safer than Titaniam by iroll · · Score: 5, Informative

      My BS is Bioengineering (Materials), but I've been a physics teacher since I graduated, so I'm a little rusty. Take this with the requisite grain of salt =)

      You're right, if you could just replace the whole femur, you'd eliminate the loading biocompatibility problems. The problem is that the femur as-a-whole is part of a complex and interconnected system, and would be many orders of magnitude more difficult to replace than the head alone. That tendons-and-cartilage problem is much, much harder than it sounds.

      For starters, the top of the femur isn't connected to any muscles or ligaments, so we don't have to worry about reattaching them. Once the head of the femur is dislocated from the hip socket, the socket is replaced by a bioengineered version, and the top of the femur is cut off and replaced. The new ball/socket joint is reconnected, and the muscles naturally fold back around it.

      Sounds simple, but this by itself is one of the most traumatic "routine" operations in the book. It's a massive, multi-hour undertaking, and requires a lot of blood and a lot of elbow grease. Removing the entire femur, while preserving all of the soft tissue around it, would be unimaginably difficult by comparison.

      To replace the whole femur, all of the tendons and ligaments attached to the lower femur would have to be removed. Attaching them to a bioengineered substrate may be difficult or impossible. These aren't trivial connections, either. They're attached to the strongest muscles on your body, so they are subject to the most extreme forces in the body--hundreds if not thousands of PSI during heavy exertion (running, jumping, etc).

      Titanium, in particular, would be a great candidate for a whole-bone replacement, if all it had to do was be a "mechanical" member. But getting the body to integrate with titanium--which you'd need, to keep those ligaments attached--is insidiously hard. One of the reasons why this new material is exciting is because the body integrates it much differently, by using it as a frame for normal growth (filling in the holes in the artificial bone with natural bone). Titanium is treated differently--the body effectively walls it off with a special type of soft tissue. It's "biocompatible" only in the sense that it doesn't provoke any kind of dangerous immune response; it is not a good substrate for normal tissue growth. Very, very few materials are, and most of them are highly engineered plastics with special protein coatings.

      You also can't easily engineer a "half" replacement for the knee--knee replacements replace both sides of the joint. So, now you're chopping up the top of the tibia to provide a mate for your artificial femur. Which leads you right back to the same kind of problem.

      Hip replacements used to be much worse than they are now; the mechanics have improved by leaps and bounds. They've gotten to the point where most people who need one (elderly, >60 yrs) will ONLY need one during their lives; it's younger athletes (Bo Jackson) and rheumatoid arthritis sufferers who have the bulk of their life ahead of them who are in danger of needing multiple rounds of replacement.

      --
      Repetition does not transform a lie into the truth. - FDR
    6. Re:Safer than Titaniam by spineboy · · Score: 1

      Many implants are only coated at the ends to avoid this problem. Check out the compress system by biomet - bone actually grows with time.

      --
      ..........FULL STOP.
    7. Re:Safer than Titaniam by spineboy · · Score: 2, Informative

      Hips have made excellent progress, with newer (metal on metal) and (ceramic on ceramic), or ceramic on metal, the wear rate is minimal, and many are thought to last a persons lifetime, if they avoid stressful things like running/jumping. So patients in their 30's are getting them now.
      Knees - not so good - still about 12-15 years

      Total femur replacements usually take about 4 hours, but a routine hip can be done in 90 minutes.

      --
      ..........FULL STOP.
    8. Re:Safer than Titaniam by TerranFury · · Score: 1

      a) Why would a strong wall move stop bearing load and overload others?

      My question too. Say you have a bunch of same-length beams all axially loaded by a rigid plate. It's a statically-indeterminate problem, and the extra equations come from the requirement imposed by the geometry that all beams deform by the same amount. What you get is that the stiffer beams carry more load. In fact, increasing the stiffness of one beam decreases the load carried by the other beams. So am I missing something?

  30. SheepShit!! by ElitistWhiner · · Score: 2, Interesting

    Sheep die at the slightest insult to their systems. A runny nose is a death sentence. I find it unbelievable that sheep are recuperating on their own with the assistance of some charcoal and calcium

    1. Re:SheepShit!! by Anonymous Coward · · Score: 3, Funny

      Sheep die at the slightest insult to their systems. A runny nose is a death sentence. I find it unbelievable that sheep are recuperating on their own with the assistance of some charcoal and calcium

      Mint jelly and a roasting pan tend to be fatal as well.

  31. If She's Made of Wood...She's a Witch! by Anonymous Coward · · Score: 0

    Burn her!

    At least they can't be turned into a newt!

    Very small pebbles?

  32. Perry Bible Fellowship Comic by plisskin · · Score: 3, Funny
    1. Re:Perry Bible Fellowship Comic by Anonymous Coward · · Score: 0

      Came here looking for it, left satisfied.

    2. Re:Perry Bible Fellowship Comic by Anonymous Coward · · Score: 0

      +1, I concur. I used the pirate with a peg heart as my avatar for a year after we lost our first child.

  33. Overheard at a restaurant... by PRMan · · Score: 1

    Hey, hon, does your leg of lamb taste like toothpicks?

    --
    Peter predicted that you would "deliberately forget" creation 2000 years ago...
  34. Is it wood, anymore? by WheelDweller · · Score: 1

    "Heating them until they're almost pure carbon..."

    Why not just use carbon? Why start with wood at all?

    --
    --- For a good time mail uce@ftc.gov
    1. Re:Is it wood, anymore? by lindseyp · · Score: 1

      Where would you propose to get the carbon from?

      --
      j'ai découvert une démonstration vraiment admirable (de ce théorème général) que cette si
    2. Re:Is it wood, anymore? by WheelDweller · · Score: 1

      I used to guard a freshwater facility; carbon (the element) is available in huge, I mean 100 pound bag quantities. If the object is "almost completely carbon", does it matter the original source?

      I'm not a chemist, but isn't burning almost anything gonna create/expose carbon?

      --
      --- For a good time mail uce@ftc.gov
  35. It's all fun and games... by kuzb · · Score: 4, Funny

    ...until your first termite infestation :(

    --
    BeauHD. Worst editor since kdawson.
  36. I think they mean charcoal. by EWAdams · · Score: 3, Informative

    When you take wood and heat it in such a way that almost only pure carbon is left, it's called charcoal. I bet they avoided that little term because it doesn't sound nearly as cool (or strong) as wood.

    --
    I piss off bigots.
    1. Re:I think they mean charcoal. by bill_mcgonigle · · Score: 1

      When you take wood and heat it in such a way that almost only pure carbon is left, it's called charcoal. I bet they avoided that little term because it doesn't sound nearly as cool (or strong) as wood.

      most people would think of Kingston briquettes, not lump charcoal. There's definitely some structure left in lump charcoal, though I don't know if it's enough to matter here.

      They also might just be heating it enough to break down certain sugars - there's a kind of rot-resistant wood that's basically just cooked wood. Looks normal, but all the edibles are destroyed.

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
  37. Home Depot is the new Urgent Care by Anonymous Coward · · Score: 0

    Got a broken leg? We have wood glue!

  38. Arrrrg! by danwiz · · Score: 1

    Pirate sheep rejoice!

    This almost makes up for the advantage of Velcro gloves.

  39. Welcome by pryoplasm · · Score: 1

    I, for one, welcome our pirate sheep overlords...

    --
    Those who live by the sword, get shot by those who live by the gun...
  40. It's just too easy by hyades1 · · Score: 1

    I got yer bone made outta wood right here.

    --
    I've calculated my velocity with such exquisite precision that I have no idea where I am.
  41. It's a witch! by martin-boundary · · Score: 1

    Wooden bones => bridge => floats => weighs the same as a duck => witch => burn her!

  42. sheep and "other" industrial applications? by Trepidity · · Score: 2, Funny

    Ah, the sheep, a stellar piece of industrial machinery.

  43. Re:burn karma, burn by Anonymous Coward · · Score: 0

    Why should your karma burn? They used the word retard and you responded, almost like a real person...

  44. Is this wood a boner? by cbraescu1 · · Score: 1

    Let the bad taste jokes begin ;-)

    --
    Catalin Braescu
    Ofaly.com
  45. Surgeons profits vs implant company by spineboy · · Score: 1

    Trust me, the implant manufacturers get way more money, than the average orthopaedic surgeon for, say a hip replacement. The surgeon gets around $1000 from insurance companies(or medicare) which includes 3 months follow up visits, while the implant manufacturer gets around $7000 for their artificial hip.

    The biggest expense in most surgeries is from the implants. Why? - because of all the liability lawsuits, which require exhaustive testing, sterilization, rechecking, etc.

    People love to sue anything with deep pockets, so you can go thank the ambulance chasers, and the good for nothing person who's "disabled" and can't work anymore, for your expensive medical bills.

    --
    ..........FULL STOP.
    1. Re:Surgeons profits vs implant company by iroll · · Score: 2, Informative

      Just to play devils advocate, there was a situation only a few years ago where a hip manufacturer failed to re-validate its manufacturing process after an equipment change. They ended up shipping contaminated hips (thin veneer of lubricant from the machine), an entire batch of which all failed catastrophically.

      I'm a fan of tort reform too, and I agree that (many but not all) of these prices are somewhat artificially inflated, but all of that exhaustive testing needs to happen. Unfortunately, in our system, the medical companies also play the Fight Club Insurance Adjuster game, instead of "doing the right thing" the first time, and a crippling lawsuit is just about the only thing on the other side of the scales.

      --
      Repetition does not transform a lie into the truth. - FDR
  46. it's the porous structure that's important by spineboy · · Score: 1

    Bone is porous, so that the bone cells can live in them It's called a osteo conductive property of the substrate... Wood has a porous structure, and thus it is used, rather than say a solid block.

    --
    ..........FULL STOP.
  47. Re:SheepShit!! Don't you? by Anonymous Coward · · Score: 0

    Sheep die at the slightest insult to their systems. A runny nose is a death sentence. I find it unbelievable that sheep are recuperating on their own with the assistance of some charcoal and calcium

    Ewe definitely hang around with the wrong flock, try meeting some Perendales. Whilst they do have a tendency to sulk, they do not die readily; indeed constitutionally, and attitudinally, they are quite the ovine survivor.

  48. Yarrr!!! by Quixadhal · · Score: 2, Funny

    Yarrrr... me peg leg'll be worth a few bottles o rum afterall!

  49. Pirates, Sheep, Pinocchio by kyjl · · Score: 1

    It's a fucking circus sideshow in the tags for this article.

    --
    Perl, n. A language spoken by Eskimos.
  50. slightly much like real post by wisdom_brewing · · Score: 1

    the wood-based artificial bones flex slightly much like real bone

    oh, come on... i expect terrible sentence structure in posts, but in submissions? it's seeping EVERYWHERE!

  51. Huh? by nomad-9 · · Score: 1

    Why make artificial bones, when there are tons of this stuff readily available but left unused in those wasted spaces we superstitious beings call cemeteries?
    Recycle, goddammit.

  52. The logical conclusion by mhwombat · · Score: 1

    .. is that the sheep weighs the same as a duck?