This is one of the most common ankle tendon injuries. It occurs frequently in sports-related injuries with it being common in basketball. This type of injury is predominant amongst adult males between the ages of 30-50. Tears most often occur around two inches from where it connects to the heel bone. Blood flow is limited to this area and affects the area’s healing ability.
If an Achilles tendon tear occurs, there may be a popping sound that occurs when the foot is flexed backwards at the time of the injury. This will be accompanied by severe pain in the back of the ankle and up the lower legs. This pain will occur immediately upon injury. Swelling may also occur. Depending on the severity of the rupture, movement may be limited when trying to extend the foot downward.
Even though many individuals experiencing this injury have not suffered from previous pain stemming from the Achilles tendon, there are predisposing factors that may lead to a tear. A tendon rupture may occur due to these factors other than an injury:
These factors may increase the probability of tearing along with leading to a tear apart from injury.
Tearing can range from minor to severe, depending on how much tearing has taken place. In other words, the tear can either be partial or complete. Minor tears can occur over time, which may lead to more severe damage. An acute tear, a singular instance of injury, may also occur. The tear may be interstitial, which means that it is limited to the same fibers of tendon. The severity of the tear is determined by the limitation of movement when trying to flex the foot. A complete tear will be felt and will limit mobility.
There are several methods for determining if a tear has occurred. Plain radiography may be used to view swelling and damage to fat pad, but more intense radiography will be needed to view the Achilles tendon. More often, an MRI is ordered to determine the extent of the rupture. A tear usually presents in an MRI as a gap in the tendon. Retraction of the tendon ends may be visible in a severe rupture. In addition to an MRI, ultrasound may be used as it will detail the change in the topography of the tendon that may include shadowing within the area of the tear.
Treatment methods for a tear in the Achilles tendon vary depending upon the extent of the injury. A partial tear may only require non-surgical methods for treatment. More severe ruptures may require surgery to repair the damage. The application of cast to immobilize the injured tendon may also be prescribed. This alternative is usually reserved for those individuals for which surgery is ill-advised.
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