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The Knee Joint
Ortho The Knee Joint
94
Medical
Professional
03/03/2012

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Cards

Term
ACL test, Most sensitive
Definition
Lachmans
Term
ACL test
Definition
Anterior Drawer
Term
valgus stress and internal rotation, ACL test done under anesthesia
Definition
Pivot shift
Term
PCL, most sensitive
Definition
Posterior Drawer
Term
pinch the med and lateral condyles of the femur and tibia thru varus valgus force and then move the knee thru its ROM looking to elicit pain
Definition
McMurry's
Term
Meniscus, pain
Definition
Appleyy compression/grind
Term
Meniscus, Pain
Definition
Apley's distraction
Term
patella test
Definition
crepitus (patella)
Term
Patella dislocation test
Definition
apprehension (patella)
Term
grip quad around the patella and ask the pt to contract the quat and if pain positive for chondromalacia
Definition
Clark
Term
Meniscus
stand on one leg and rotate on the fixed leg
Definition
Thessaly's test
Term
most likely area of m to atrophy around the knee and hardest to rehab
Definition
Vastus Medialis Obliques
Term
ACL injury can be accompanied by
Definition
hemorrahage in the knee
Term
function of type A synovial cells
Definition
phagocytosis
Term
function of type B synovial cells
Definition
produce and secrete synovial fluid
Term
function of type C synovial cell
Definition
undifferentiated
Term
increases the viscosity and elasticity of the articular cartilages and lubricates
Definition
Hyaluronan (hyaluronic acid)
Term
key lubricating component of the synovial fluid
Definition
Lubricin
Term
lubricates, nourishes, and phagotizes debris in the joint
Definition
Synovial fluid
Term
fat globules in the knee effusion
Definition
means fx
Term
cloudy appearance in the knee effusion fluid
Definition
think infection
Term
viscus knee effusion fluid
Definition
think infection (string sign)
Term
color of normal synovial cluid
Definition
clear to yellow hue
Term
needle shapped long crystals
Definition
monosodium urate (uric acid)
Term
rhomboid or small rods, pleomorphic shapped crystals
Definition
Calcium pyrophosphate dihydrate (CPPD)
Term
knee aspiration occurs at
Definition
superior lateral pole
Term
snapping, swelling, stiffness, giving out
Definition
mechanical sx
Term
mechanical sx are indicative of
Definition
meniscal tear
Term
twisting injury of knee with foot planted
Definition
acute meniscal tear
Term
tend to displace toward the cruciate ligs middle of the joint
Definition
Bucket handle tears
Term
locking of the knee
Definition
torn meniscus sign
Term
xray view of patella from top down
Definition
sunrise or merchant view
Term
best MRI view for meiscal tear dx
Definition
T2 sagital
Term
procedure of choice for meniscal tear
Definition
Arthroscopy, most get partial menisectomy - want to preserve as much of the meniscus as possible
Term
a meniscus that developmentally covers the entire condyle and is not frisbee shapped not crescent shaped
Definition
Discoid meniscus
Term
dont do anything unless it tears
Definition
Discoid meniscus
Term
internal rotation of a hyperextended knee would injur which ligament
Definition
ACL
Term
fx of the lateral condyle of the tibia
Definition
Segond fx
Term
a Segond fx is indicative of what?
Definition
ACL tear
Term
money shot for ACL
Definition
sagital MRI
Term
acutely the ______ meniscus tends to be torn
Definition
lateral meniscus
Term
chronically the ___________ meniscus tends to be torn
Definition
posterior horn medial meniscus
Term
an ACL is not repaired it is
Definition
reconstructed
Term
______ is a contraindication for ACL reconstruction
Definition
DJD
Term
recontruct ACL from a piece of the hamstring tendon
Definition
Bone Tendon Bone autograft
Term
used to shrink the ACL - DONT EVER DO IT LEADS TO ACL RUPTURE
Definition
Radiofrequency heat
Term
Stops mechanical locking
Definition
Simple debridement
Term
Prevents anterior posterior movement
Definition
Anterior Bundle of ACL
Term
Prevents rotation in relation to the femur
Definition
Posterior Bundle of ACL
Term
Rare
High energy trauma
Dashboard injury
Knee dislocation
Definition
PCL rupture
Term
lift supine legs by the toes and see hyperextension of the knee
Definition
significant sign on of PCL injury
Term
Genu Recurvatum
(+) posterior drawer test
Definition
Dx that PCL is ruptured
Term
intersecting lines from the ASIS and the tibial tuberosity thru the middle of the patella for an anle
Definition
Q angle
Term
A large Q angle predisposes to
Definition
patellar subluxation or dislocation
Term
dislocation of the patella can cause an
Definition
osteochondrallesion
Term
patella normally dislocates
Definition
Laterally
Term
cut the lateral retinaculum around the patella and suture the torn medial retinaculum by pication
Definition
Lateral release
Term
tuber osity is osteotomized with attached patellar ligament and the tuberosity is shifted to more medial position and fixed with screw which reduces the Q angle
Definition
Tibial tuberosity transfer
Term
what procedure reduces the Q angle
Definition
Tibial tuberosity transfer
Term
pain around the knee cap
pain with stairs
crepitance
Definition
Chondromalacia or Patellofemoral syndrome
Term
Softening of the patella
Definition
Grade I Chondromalacia
Term
Fisurring of the patella
Definition
Grade II Chondromalacia
Term
Exposed patella bone
Definition
Grade III Chondromalacia
Term
Eburnated patella bone
Definition
Grade IV Chondromalacia
Term
lateral movement of the patella in extension above the trochlear groove
Definition
Lateral J sign
Term
shave patellay bak to stable margins
Definition
chondroplasty
Term
last line procedure, remove patella, no moreterminal quadriceps function
Definition
Patellectormy
Term
openly (not arthroscopically) realign patella
Definition
open realignment
Term
pain and swelling on the anterior knee where the prepatellar bursa is, cleaning on knees sliding into a base for baseball
Definition
prepatella bursitis
Term
Irritation of the patellar tendon at the tibial tuberosity
may be accompanied by tibial tuberosity fx
Definition
Osgood Schlatters Disease
Term
-ages 10-15
-pain and tenderness at the inferior pole of the patella
-calcification and abnormal formation of inferior pole of the patella
Definition
Sindig Larsen Johansen Disease or Jumper's Knee
Term
Cho-Pat brace
Definition
brace ofr osgood Schlatters disease
Term
-associated with posterior horn meniscal tears
-resolve if you take care of intrarticular problems
-caused by OA or meniscal tear or somthing that is causing problems with synovial sack making a one way valve
-commonly the common fibular nerve can be pinched with this pathology and the nerve can be injured when attempting to excise
Definition
Popliteal or Bakers Cyst
Term
exits bw semimembanosus and medial head of gastroc
Definition
Bakers cyst
Term
normally self resolving in children
Definition
Bakers cyst
Term
key part of ddx for Bakers cyst
Definition
synovial cell sarcoma
Term
ACL, MCL, Medial meniscus
Definition
Chronic Triad of O'Donoghue
Term
ACL, MCL, Lateral meniscus
Definition
Acute Triad of O'Donoghue
Term
isolated joint pain and tenderness MCL
Definition
1st degree isolated MCL
Term
laxity of the MCL
Definition
2nd degree isolated MCL
Term
rupture of MCL with joint instability
Definition
3rd degree isolated MCL
Term
ossification of the medial collateral ligament at its femoral insertion usually due to trauma with subsequent hemorrhage (no eponym for ossification of the lateral collateral ligament!)
Definition
Pellegrini Stieda Disease
Term
boney avulsion, chonric MCL lesion at the origin of the MCL
Definition
Pellegrini Stieda Disease
Term
locking and popping of the knee
Definition
OCD
Term
lateral aspect of the medial femoral condyle is a classic site for
Definition
OCD lesion
Term
Xray tunnel view is the standard view for an
Definition
OCD
Term
arthroscopic mosaicplasty
Definition
OATES
Term
bone plugs from other sites in body and transplant into the lesion
Definition
OATES
Term
tx for OCD
Definition
mosaicplasty and osteoarticular transfer system (OATS) procedures
Term
replacement of only the medial/lateral compartment of the knee
Definition
hemiarthroplasty
Term
pain in the knee can be caused by a
Definition
hip pathology
Term
hip pathology radiates pain to the knee via the
Definition
Obturator nerve
Term
knee replacement that allows the joint to rotate a little bit when you extend the knee to lock it out
Definition
mobile bearing tibia
Term
medial compartment hemireplacement that has polyethylene middle piece that is free floating but will possibly dislocate
Definition
Oxford procedure
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