Okay, let's take a look at some
review content on the knee exam.
So there's a lot of
details on this table
and I'm just going to hone in on a
few specific features in each column.
For osteoarthritis, one of the classic
things you're going to be looking for
is osteo fidic enlargement
of the knee joint,
along with potentially
that various deformity.
Patients with a meniscal injury,
you're looking for
that McMurray test,
which has very good likelihood
ratios associated with it.
Ligamentous strain, you want to
perform Varus and Valgus stress testing
to try and identify which ligament
is unhappy and is strained.
For pes anserine bursitis,
you're looking for an area of
very focal warmth tenderness
just distal to the
medial tibial plateau.
And for acute gout,
that's when you really have to get good
at assessing warmth in both
knees and looking for an effusion
which you would then want to
tap and look for crystals.
Which of the following is true?
Is it tenderness over
the lateral joint line
may indicate your lateral meniscal tere
lateral OA or pes anserine bursitis.
Is it blocked extension is common
in posterior meniscal injuries,
is it that the Lachman's
test is more sensitive
than the anterior drawer
test for ACL injuries,
or that the LCL is the most
commonly injured ligament.
Okay, so for letter A,
tenderness over the lateral joint line
may indicate a lateral meniscus tere
and lateral joint
but not pes anserine bursitis since that's
located on the medial side of the knee.
Blocked extension is actually
common in anterior meniscal injuries
as that bucket handle lesion
prevents full extension of the knee.
The Lachman's test.
Yes, it is, in fact more sensitive
than the anterior drawer test
for identifying an ACL injury.
So that's going to turn out
to be our correct answer.
And then it turns
out that the MCL
is actually the most
commonly injured ligament,
not the LCL.
So the answer is