Tendons are the tough fibres that connect muscle to bone. Most tendon injuries occur near joints, such as the shoulder, elbow, knee, and ankle. A tendon injury may seem to happen suddenly, but usually, it is the result of many tiny tears to the tendon that have happened over time. Health professionals may use different terms to describe a tendon injury. You may hear:
Tendinitis (or Tendonitis): This actually means “inflammation of the tendon,” but inflammation is rarely the cause of tendon pain.
Tendinosis: This refers to tiny tears in the tissue in and around the tendon caused by overuse.
Tendinopathy: This is an umbrella term that can refer to either tendinitis or tendinosis. As it is common to find areas of both tendinosis and tendinitis in the same tendon, the term tendinopathy is often used.
Tibialis Posterior injuries can include:
Tibialis Posterior tendinitis (an inflamed tendon).
Tibialis Posterior tendinosis (a non-inflamed degenerative tendon).
Tibialis Posterior tenosynovitis (an inflamed tendon sheath).
a ruptured Tibialis Posterior tendon (secondary to degeneration or tear).