Stifle and crus Flashcards
How do you tell the medial from lateral surface of the tibia? The cranial from caudal?
The medial malleolus is on the medial side.
The cranial view has the tibial tuberosity.
Stifle image
Tibia and fibula
Identify bones without looking.
What type of joint is the stifle? The patellar joint? The tibia/fibia joint?
Condylar
Sledge
Plane
What are the four sesamoids of the stifle?
Patella, two fabellae, one sesmoid bone of the popliteal muscle
Which stifle joint is this and how can you tell?
left
-you can tell because the origin of the long digital extensor is always lateral
- moves the tibial tuberosity cranially which changes the angle of the patellar ligament
- counterbalances shear forces when the joint is weight bearing
What is it?
TTA (tibial tuberosity advancement)
changes the angle of the proximal tibial condyles to remove reliance on the cranial cruciate ligament
What is it?
TPLO (tibial plateau leveling osteotomy)
What is the crus?
The tibia and fibula
What is the stifle? What joints make it up?
The knee :
Femorotibial jt.
Femoropatellar jt.
Proximal tibiofibular jt.
Figure 1. Diagram showing rolling motion of the femoral condyle over the tibial plateau during stifle flexion and the relative positions of the cranial (orange) and caudal (blue) cruciate ligaments
Figure 5. (A) Stifle in full extension showing an overall cranial draw force (orange arrow) when the angle of the patella tendon (white arrow) to the tibial plateau (blue) is more than 90°. (B) Stifle in mid flexion showing no draw force when the patella tendon is perpendicular to the tibial plateau. (C) Stifle in flexion showing an overall caudal draw force (orange arrow) when the patella tendon is at an angle less than 90° to the tibial plateau.
What test is this?
Cranial draw test.
What test is this?
Tibial compression test.
