The Achilles tendon connects the calf muscles in the lower leg to the heel bone. It is the largest yet most exposed tendon in the body. Achilles tendonitis is where the Achilles tendon, and sometimes the protective sheath through which it moves, becomes inflamed, causing pain and swelling symptoms. Achilles tendonitis (also known as Achilles tendinopathy or tendonosis) is classified as an overuse injury. If left untreated it can become chronic (long-term), requiring more intensive treatment. Achilles tendonitis can also increase the risk of sustaining an Achilles tendon rupture (tear).
The cause of paratenonitis is not well understood although there is a correlation with a recent increase in the intensity of running or jumping workouts. It can be associated with repetitive activities which overload the tendon structure, postural problems such as flatfoot or high-arched foot, or footwear and training issues such as running on uneven or excessively hard ground or running on slanted surfaces. Tendinosis is also associated with the aging process.
The main complaint associated with Achilles tendonitis is pain behind the heel. The pain is often most prominent in an area about 2-4 centimeters above where the tendon attaches to the heel. In this location, called the watershed zone of the tendon, the blood supply to the tendon makes this area particularly susceptible. Patients with Achilles tendonitis usually experience the most significant pain after periods of inactivity. Therefore patients tend to experience pain after first walking in the morning and when getting up after sitting for long periods of time. Patients will also experience pain while participating in activities, such as when running or jumping. Achilles tendonitis pain associated with exercise is most significant when pushing off or jumping.
Confirming Achilles tendonitis may involve imaging tests. X-rays provide images of the bones of the foot and leg. Magnetic resonance imaging (MRI) is useful for detecting ruptures and degeneration of tissue. Ultrasound shows tendon movement, related damage, and inflammation.
Self-care strategies include the following steps, often known by the acronym R.I.C.E, Rest. You may need to avoid exercise for several days or switch to an activity that doesn't strain the Achilles tendon, such as swimming. In severe cases, you may need to wear a walking boot and use crutches. Ice. To decrease pain or swelling, apply an ice pack to the tendon for about 15 minutes after exercising or when you experience pain. Compression. Wraps or compressive elastic bandages can help reduce swelling and reduce movement of the tendon. Elevation. Raise the affected foot above the level of your heart to reduce swelling. Sleep with your affected foot elevated at night.
Mini-Open Achilles Tendon Repair. During a mini-open Achilles tendon repair surgery, 2 to 8 small stab incisions are made to pull the edges of the tendon tear together and suture the torn edges to repair the damage. During this procedure the surgeon will make one 3 to 4 cm long incision on the back of your ankle and 2 to 4 smaller vertical incisions around the long incision. These smaller veritical incisions are made with a pair of surgical scissors and are commonly referred to as "stab incisions". Once the incisions are opened up, the surgeon will place precise sutures with non-absorbable stitches to strengthen the damaged Achilles tendon tissue. This suturing technique reduces the amount of scar tissue on the tendon after surgery and provides better surface healing of the skin. Unlike the traditional method of an open surgery, this procedure has less risks and complications involved. To learn about all risks you may face be sure to speak to your doctor.
Regardless of whether the Achilles injury is insertional or non-insertional, a great method for lessening stress on the Achilles tendon is flexor digitorum longus exercises. This muscle, which originates along the back of the leg and attaches to the tips of the toes, lies deep to the Achilles. It works synergistically with the soleus muscle to decelerate the forward motion of the leg before the heel leaves the ground during propulsion. This significantly lessens strain on the Achilles tendon as it decelerates elongation of the tendon. Many foot surgeons are aware of the connection between flexor digitorum longus and the Achilles tendon-surgical lengthening of the Achilles (which is done to treat certain congenital problems) almost always results in developing hammer toes as flexor digitorum longus attempts to do the job of the recently lengthened tendon. Finally, avoid having cortisone injected into either the bursa or tendon-doing so weakens the tendon as it shifts production of collagen from type one to type three. In a recent study published in the Journal of Bone Joint Surgery(9), cortisone was shown to lower the stress necessary to rupture the Achilles tendon, and was particularly dangerous when done on both sides, as it produced a systemic effect that further weakened the tendon.