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Knee Anatomy
Term | Definition |
---|---|
Medial Femoral Condyle | Articulates with medial tibial condyle and is attachment for MCL |
Lateral Femoral Condyle | Articulates with lateral tibial condyle and is attachment for LCL |
Tibial Plateau | Flattened superior surface of the tibia |
Tibial Tuberosity | Distal Attachment of Patellar tendon |
Medial Meniscus | Cartilage which is more firmly attached to the tibia and more commonly torn |
Lateral Meniscus | Cartilage which is freely moving in the middle and less commonly torn |
Anterior Cruciate Ligament | Tissue preventing anterior translation of the tibia; attaches to the anterior border of the tibial plateau |
Posterior Cruciate Ligament | Tissue Preventing posterior translation of the tibia; attaches to the posterior border of the tibial plateau |
Lateral Collateral Ligament | Prevents Varus force to the knee; distal attachment is on the fibular head |
Medial Collateral Ligament | Prevents Valgus force to the knee |
Hamstrings | Semimembranosis, semitendinosis, biceps femoris; flexes knee |
Quadriceps | Vastus lateralis, vastus medialis, vastus intermedius, rectus femoris; extends knee |
Patella | largest sesamoid bone in body |
"Jumper's knee" | Patellar tendonitis |
Largest bursa in body (in knee!) | Suprapatellar bursa |
Chondromalacia | degeneration of articular cartilage of patella; knee cap "snap, crackle & pops" |
Jobs of the Meniscus | shock absorption, stability/support, distributes forces across knee, protects the ends of the femur and tibia |
Osgood-Schlatter's Disease | inflammation of tibial tuberosity due to increased tension created by tight patellar tendon/quad tendon |
Dislocation | bones move out of place and must be manually reduced |
Subluxation | bones shift out of place and return back into place on their own |
Knee injury that is a medical emergency | Knee dislocation |
Angle created by the pull of the quads in the line of the patella; can predispose knee to injury | Q-angle |
IT Band Syndrome | inflammation of the IT band at the lateral knee |