Hi guys, Dr. Mackenzie here today, we're going to talk about one of the most common questions that we get in the office
I'd say we get this question at least once a day and that is what does bone-on-bone mean?
To put this in a little context most of our patients that come and see us have been to their doctor or surgeon
Who has taken some x-rays and told them, you're bone-on-bone
Your option is basically a knee replacement
Understandably most people don't want to go through that major surgery and the risks associated with it and the recovery.
So now we're going to look at what a normal knee looks like so we can understand what bone-on-bone means
So in a normal knee
we've got our meniscus which is the white part and that's what provides some separation between the bones and some shock absorption
Then we've got the blue part which is the cartilage which provides some lubrication and decreases the friction between the bones
To think of it in simple terms
It's kind of like the Teflon on your frying pan and allows things to slide around nice and easy. There's no friction.
So now that we know what a normal knee should look like now we're going to look at our arthritic knee.
So this is arthritic knee
So the first thing we notice is the size of that meniscus has decreased
dramatically, so there's less cushion and separation between the bones but there's still a separation and
Then the cartilage we can see the red that cartilage is worn away. So it's like someone's taken a metal
spatula and scraped off that Teflon coating on your knee joint
So now there's a lot of friction which really results inflammation and swelling. So this is what's going to be called bone on bone
Now that we know what the normal knee looks like
anatomically, we're gonna look at the x-rays and I'm gonna post this x-ray image at the end of the video so you can look at
It a little bit closer, so
The scale that we use to look at these goes from 1 through 4
1 being essentially a normal knee, four being the bone on bone idea.
so in the normal knee we will see a lot of separation on the outside and
the inside
Everything is nice and smooth and the joint is pretty straight up and down
as we move along
We're gonna get into this grade 3 and grade 4 and this is what's known as bone on bone.
Where the spacing typically on the inside part of the knee is decreased dramatically where it's almost touching but not quite.
The other thing that we'll see is some sharpening of the bone
which is called bone spurs.
now the really interesting thing and why patients ask us this all the time is I've seen anywhere from
Grade 2 through grade 4 be called bone on bone. And obviously there's a huge difference
in those grades.
The good news is even though you might be grade 4 and bone on bone
As long as you're still walking and able to walk a lot of the conservative treatments that we do can still have a positive impact
The two things that we really like for bone on bone knees are the viscosupplement injections
using a fluoroscope and that's like reapplying that Teflon
back into the knee joint and the fluoroscope is key to put it in the right spot.
Then the second thing that we really like to use in conjunction with that is class 4 laser
which is really effective at reducing the inflammation and pain
associated with this condition
I hope you found this useful
If this
sparked any questions, please get in contact with the office or send us a message through Facebook. If you have any friends
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Like I said
I'm going to post a picture of this x-ray so you can take a look at it at the end of the video.

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