00:01
Osteopathic evaluation
of the elbow joint
So elbow joint is a hinge joint located
between the shoulder and the wrist.
00:08
and we’re going to evaluate the elbow to see
if we could detect any sort of pathology
so we’re going to
follow look-feel-move.
00:16
First we’re gonna observe,
we’re gonna look at the elbow,
you wanna check both surfaces, you
wanna compare left and right,
you wanna see if the patient has a normal carrying
angle by letting their arms come to the side
and observing how far the
carrying angle might be.
00:31
That’s good.
00:32
After observation, we’re going
to perform some palpation, so
you want to palpate the elbow joint, you want
to make sure that there’s no tenderness.
00:40
the epicondyles, the
condyles of the humerus
the epicondyles here is where a lot
of different forearm muscles attach,
a lot of muscles attached control the hand and
wrist and sometimes they could be irritated,
they could have some pain in the regions so you
want to palpate the muscles, check for tension.
00:58
You want to palpate the
cubital fossa region,
a lot of times this is where you're going
to draw blood when you’re doing phlebotomy
Posteriorly, you want
to check the olecranon,
you want to make sure that the structures
here are sound and that there's no tenderness
you have your triceps
tendon back here too
and that's where you strike when you
perform motor testing of the triceps.
01:21
So after performing your observation and your
palpation, we're going to move the joint.
01:27
So the elbow joint
has limited motions,
in most of the planes except
for in the sagittal plane,
so in the sagittal plane, the elbow
has the most range of motion.
01:39
So this is anatomical 0 for the elbow where we're motion
testing the elbow we're going to perform flexion,
and flexion should be about
150 degrees passively
and then extension, and really there's
not a lot of play because the olecranon,
the head of olecranon of the ulna
locks into the humerus here,
so there really shouldn't be no more than 2
degrees of extension, 2-5 degrees of extension
So other than flexion and
extension in the sagittal plane,
we could have some limited
ABduction and ADduction,
so ABduction or valgus strain of the elbow really
is tested passively, it's about less than 5 degrees
and ADduction also and this is
because if the elbow's straight,
the olecranon locks into the humerus
and there's really not a lot of play
so when you test a valgus and varus, you should
have the elbow slightly bent to about 30 degrees.
02:43
There is motion about
the transverse axis,
it is the radius and ulna
crossing over each other
so there is a pronation where the
hand is pointing down, palm down
and the radius is
crossing over the ulna
and then you have supination where the
bones are parallel and not crossing over,
so with the forearm, this would
be considered 0 degrees,
and so I could pronate and then I
could also supinate the elbow joint .
03:15
So here we're loking at pronation and supination
to see if there's any sort of restrictions,
you always want to compare both sides.
03:24
So if we're diagnosing a somatic
dysfunction, what I might find
is that there might be a
restriction to full flexion,
and if there's a restriction to full flexion,
that will be an extension somatic dysfunction.
03:35
or if someone hurt their elbow and
they can't fully extend their elbow,
and you can't strain it out fully, then that would be a
extension restriction but then a flexion dysfunction.
03:48
at the forearm, we could note any sort of
restrictions in the pronation or supination,
you could also compare both sides by having the
patient put their elbow along their sides here
and then starting at 0, we're going to have
you turn your palms up as much as you can
and I'm looking at how far they could supinate
and bring your palms towards the floor.
04:08
It's important to keep the elbow close
to the body as you're doing this
and they're not kinda turning
their, bringing their elbow out,
as you could see, it could falsely
cause a change in the degrees.
04:21
So osteopathically, we will focus a
little bit more on the radial head,
so the radial head is the proximal
connection of the radius to the elbow joints
and this radial head kinda feels a little
bit like a nailhead posteriorly here
and you could kinda grasp the
radial head in your hands.
04:41
Sometimes elbow dysfunctions could disrupt
what's going on at the radial head
so we want to diagnose the radial head
specifically in terms of its motion
in relation to the elbow so the radial head
will glide posteriorly when you pronate
and that's just the hand-palm
motions and movements that occur here,
so I'm holding on to the radial head
between my thumb and my first finger
and I'm pronating the forearm and I'll feel it kinda
go more to my fingers in the back here posteriorly
When I supinate the forearm, I'll feel the radial
head come more anteriorly towards my thumb.
05:21
So the radial head could glide
posteriorly and anteriorly
and you could name any dysfunction of the
radial head for its relative freedoms.
05:29
You could also check for the association of the
motion of the forearm and supination and pronationa
and correlate that with the radial
head diagnosis so if I had the patient
supinate and pronate themselves
and I ask them to supinate
but one side is able to fully supinate but the other
cannot, then this left side will be the problem side
and if someone cannot fully supinate - that's the
restriction, that means pronation is the freedom,
and if you pronate the forearm that
would cause a posterior radial head,
so that will be a posterior
radial head dysfunction.
06:04
Now once you find the motion
restriction in the forearm
then you could diagnose the radial head
either based on supination and pronation
or you could motion test it
yourself and passively test it
and try to pronate and supinate the forearm and
see which way the radial head likes to move.
06:28
There's some special test that we could perform to try to
screen and rule in or rule out specific elbow problems.
06:35
So if someone has pain on the medial
aspect of the elbow by the epicondyle,
that's called medial
epicondylitis or golfer's elbow.
06:43
usually, it is overuse or inflammation
of the flexor tendons of the wrist
because that's what attaches to that
elbow and when golfers kinda golf,
they finish off and really
flex their elbow joints
so what we're gonna do is to monitor this region
and we're gonna perform two different tests
to assess whether or not there
is medial epicondylitis present.
07:05
So the flexors could be tested by
using a forced wrist extension test,
so when I forcibly extend the wrist, what it does is
it stretches the muscles that attach to that condyle
Now if someone has medial epicondylitis,
it's gonna cause them pain in that region,
so I'm gonna monitor the medial epicondyle and
I'm gonna just bring their wrist into extension
and if there's pain there,
then that's a positive test.
07:34
The other way to test for medial epicondylitis
is to have the patient engage those muscles,
so this is gonna be a resisted wrist flexion cause
he's using his muscles and flexing his wrist,
I'm gonna bring his
wrist into extension
and go ahead try to flex your wrist
to bring your wrist up to the ceiling.
07:52
Good.
07:53
If that causes pain, then that'll be a
positive test for medial epicondylitis
because you're engaging those muscles thus pulling
on the inflamed tendons causing pain in that region.
08:05
If we have pain on the lateral aspect of the elbow,
then that could be potentially lateral epicondylitis
Because it's on the lateral side, this is
the attachment of the wrist extensors,
so this is also
called tennis elbow
because tennis players, they do a lot of backhand,
so it's a lot of force extending their wrist.
08:24
So in order to test for lateral
epicondylitis, we could do a couple of test
so the first thing to do is to try to challenge the
wrist extensors by forcibly flexing the wrist,
so this test is called forced wrist flexion which then
stretches the muscles attaching to the lateral epicondyle
So I'm gonna take the wrist, and just slowly
push the wrist into flexion if that causes pain,
that would be a positive test.
08:51
We could also engage these muscles by
asking the patient to extend their wrist
so we could also engage
the wrist extensors,
so we could also engage the wrist extensors and have
the patient push their wrist against my resistance
and so this is resisted wrist extension,
this will engage the wrist extensors
and if pain occurs, that is a positive
sign for lateral epicondylitis.
09:21
If you have a patient that comes in with plenty of pain
more shooting down from the elbow into the distal hand
where the pinky finger maybe half the forefinger
- that's the innervation of the ulnar nerve
So the ulnar nerve sometimes could be
entrapped at the elbow at the cubital tunnel.
09:37
So we could perform a Tinel's
test for the ulnar nerve,
so what we're gonna do is for the Tinel's test, we're
gonna find the medial aspect of the olecranon fossa
and that's the cubital tunnel
where the ulnar nerve runs
we're gonna take our fingers and
just gently tap over the region
and if that recreates the pain shooting down into the
fingers and the hand, then that's a positive test,
there might be some sort of entrapment of
the ulnar nerve within the cubital tunnel.
10:05
If a patient has elbow pain, especially on the
medial aspect and there was some sort of trauma,
and you want to assess whether or not that ligament-
the medial collateral ligament is still intact,
we can perform a
valgus stress test.
10:21
So valgus is to take the distal forearm and
bring it lateral, almost forming a shape of a L
So I'm gonna support the elbow above the joint, I'm
gonna monitor at the medial collateral ligament
which is between the
humerus and the ulna here
and I'm gonna take the distal portion
of the hand and bring it at lateral
creating that valgus stress so I'm stressing
the medial collateral ligament here,
if I have any sort of increased joint
laxity, if there's increased pain,
then that would be a positive test for instability or
possible tear of the medial collateral ligament of the elbow
To test the lateral collateral ligament integrity, patients
may come in with complaints of lateral elbow pain,
they might have had some sort of trauma that
caused their hand and forearm to come in medially,
we could test the lateral collateral
ligament by performing a Varus Stress Test
So a varus stress test is when we
take the hand and bring it medially.
11:27
and so that gaps the lateral aspect of
the elbow joint and if this ligament,
the lateral collateral ligament is disrupted,
you're gonna have increased joint laxity
or pain when you perform the varus stress
test so a positive varus stress test
would indicate that the lateral collateral
ligament may have been damaged,
might have been torn, you'll have increased
joint laxity and pain in that region.