Knee and Leg Anatomy Flashcards
Inferior to this groove in the lateral condyle is its weight bearing portion
Sulcus terminale
Largest sesamoid bone in the body
patella
Failure of superolateral portion to fuse, often confused with a fracture
bipartite patella
Bone with the thickest articular cartilage (up to 5 mm)
Patella
Traction apophysitis at open tibial tubercle apophysis
Osgood-Schlatter
Insertion site of the band of iliotibial tract
Gerdy’s tubercle
Nerve that can be injured in fibular fractures
Peroneal nerve
Compartment pressure diagnostic of compartment pressures
Absolute: >30-40 mmHg
Fracture characterized by complete disruption of tibiofibular syndesmosis with diastasis caused by external rotation of the talus and transmission of force to proximal fibula, resulting in high fracture of fibula
Maisonneuve fracture
3 articulations in the knee
Medial and lateral femorotibial joints, patellofemoral joint
What type of joint is femorotibial joint
Condyloid (hinge) joint
What type of joint is patellofemoral joint
Sellar (gliding) joint
Three compartments of the knee
Medial
Lateral
Patellofemoral
Static stabilizers of the medial knee
Superficial and deep medial collateral ligaments
Posterior oblique ligament
Dynamic stabilizers of the lateral knee
Semimebranosus, vastus medials, medial gastrocnemius, PES tendons
Static stabilizers of the lateral knee
Lateral collateral ligament, iliotibial band, arcuate ligament
Dynamic stabilizers of the lateral knee
popliteus, biceps femoris, lateral gastrocnemius
Primary movements of the knee
Extension and flexion
Structure that can become fibrotic or impinged on, causing knee pain in Hoffa syndrome
Infrapatellar fat pad
Anterior structures of femorotibial joint
Anterior cruciate ligament
Transverse meniscal segment
Ligamentum mucosum
Infrapatellar fat pad
Posterior structures of the femorotibial joint
Posterior cruciate ligament
Meniscofemoral ligament
Oblique popliteal ligament
Lateral and posterolateral structures of the femorotibial joint
Layer I (Superficial) - iliotibial band, biceps femoris Layer II (Middle) - lateral patellofemoral ligament, lateral patellar retinaculum Layer III (Deep) - lateral collateral ligament, fabellofibular ligament, popliteus muscle and tendon, popliteofibular ligament, capsule, arcuate ligament
Ligament of the knee that serves as the primary restraint to varus stress
Lateral collateral ligament