Extensor Mechanism Flashcards
Increased “Q-Angle” for is a predisposing factor for
Patellar Dislocation
Damage to cartilage (furrowing, softening, and roughening) on posterior surface of patella
Chondromalacia Patella
Stages
I: swelling and softening of the cartilage
II: fissuring w/in the softened areas
III: fasciclations of articular cartilage almost to level of subchondral bone
IV: destruction of cartilage w/ subchondral bone exposed, histologically, stage IV is virtually indistinguishable from DJD;
There is no unequivical progression from stage I to IV;
Chondromalacia Patella
a condition that is the result of a remnant of fetal tissue in the knee becoming inflamed due to overuse or injury
Plica Syndrome
m/c symptomatic type of synovial plicae
Mediopatellar Plica
synovial plica symptoms are aggravated by
activity or prolonged standing, squatting, sitting, and stair climbing
most consistently painful region of the patella from synovial plica?
Inferomedial quadrant
synovial plica syndrome painful arc
30-60
conclusively establishes a diagnosis of plica syndrome
A palpably tender plica in the absence of an intra-articular effusion
TARP stands for:
T - Taut
A - Articular band
R - Reproduces
P - Pain
standard for Dx synovial plica synd?
arthroscopy
Apophysitis of the inferior pole of the patella with inflammation of the superior aspect of the tendon.
Sinding-Larson Johansson’s Disease
phase I: pain only after activity;
phase II: - pain/discomfort during activity, but does not interfere w/ participation
phase III: - pain both during & after participation, which interferes w/ competition
phase IV: complete tendon disruption
Patellar Tendonitis (Jumper’s Knee) classification:
Unlike the achilles tendon rupture, the quadriceps disruption is usually associated with
intense pain
