Knee

The knee is the largest joint in the body. It is built for weight bearing, stability, and mobility. The knee complex is composed of four bones and three osseous bone-to-bone joints. These are the patella-femoral joint, tibiofemoral joint, and the tibiofibular joint.

Bone and Joint

Common conditions of these joints include:

• Knee osteoarthritis
• Rheumatoid arthritis
• Tibial plateau fractures
• Patellofemoral syndrome
• Degenerative joint disease
• Chondromalacia

Muscles

Common conditions of the muscles and tendon of the knee include:

• Patella tendinitis
• Ruptured quadriceps tendon
• Quadriceps strain
• hamstring strain
• torn hamstring
• Muscle strain
• Gastrocnemius tear
• Gastrocnemius strain

Ligaments and Meniscus

Common conditions for this aspect of the knee include:

• ACL tear
• ACL insufficiency
• PCL tear
• Medial meniscus tear
• Lateral meniscus tear
• Meniscus tear
• Unhappy triad
• Meniscectomy
• ACL reconstruction
• PCL reconstruction

Bursa

Common conditions of the bursa include:

• Prepatellar bursitis
• Pes anserinus bursitis
• “Fluid on the knee”