Knee 1 Flashcards
What is the thickness of the quad tendon?
4.1-5.1
What do sesamoids act like?
pulleys
What is the blood supply to the sesamoid bone?
geniculate system
What is the retro patellar cartilage thickness range?
2-5.5 mm
How many facets
3
How often are bipartite patella seen
1% of population
What is the normal sulcus angle and deeper means what and flatter means what
130 deg deeper or less than 130 deg early life and flatter more than 130 deg later life
What is a fat pad
fibrous, sponge like scaffold, fat-filled, and semi-liquid, so structured to be able to deform slowly when pressure is applied, regaining form quickly when pressure is removed. It is densely packed with nerves. It mechanical function is to be a space filler and hydraulic shocik absorber. It has other functions including faciliting gliding and lubrication, protection of articular surfaces and endocrine role and a neurosensory and proprioceptive role
What is the suggested normal for supra patellar bursa length and thickness
22.5 mm length and 2.5 mm thickness
What is the attachment of medial and lateral patellar retinacula?
medial origin is sartoius and lateral origin is ITB and VL-stabilize the patella
What is a crucial medial stabilizer of the knee with a relationship to the patella?
Medial Patello femoral ligament
Image of the MPFL
Remember that the MPFL is embeded in the retinaculum need to stress test and look at contra lateral side
What is the infr patellar ttendon diagnositic visual criteria
3-3.4 mm
What is a jumpers knee
pic
What is Hoffa disease?
Irritation of Infra patellar fat pad. What are some of the symptoms?
What 3 muscles form the Pes Anserine tendon
sartorius, gracilis and semitdinosis
Name the layers of the medial compartment interfaces superficial to deep
I. Pes Anserine IISuperficial MCL III. Deep MCL
image MCL
you see the posterior horn of the medial meniscus
Where is the site of origin for a Bakers cyst
Semimembranosus and Medial gastroc bursa and interface between the two mucscles
T or F
T Ultrasound only visalizes periphery of any fibro cartilage
Measurement for proximal MCL thickness and distal MCL thickness and pes anserine bura
proximal 3.5 mm distal 2.0 mm pes anserine 2mm
How many bursa is in the infrapatellar subcutaneous area
Image of deep infra patellar bursa
Image of fat pads
