Overuse from running or jumping on hard surfaces [...]

Sports trauma with sudden twists or falls Overstretching [...]

Repetitive overuse from sports or work Improper posture [...]

Prolonged standing on hard surfaces Overuse from running [...]

Fracture from trauma or fall Avascular necrosis from [...]

Repetitive joint use or overstrain Direct trauma or [...]

Prolonged sitting or poor posture Overuse injuries from [...]

Repetitive overhead activities straining the shoulder Sudden trauma [...]

Underlying knee arthritis or cartilage injury Meniscus tear [...]

Sudden twisting or sports injuries Degenerative changes with [...]