Introduction
The Achilles tendon is the strongest in the human body, connecting muscles to bones. Located at the back of the lower leg, it works alongside the calf muscles to facilitate powerful foot movements. Achilles tendon ruptures frequently occur during sports activities like basketball, football, or tennis, but can also be caused by a condition known as Achilles tendonitis, where the tendon becomes weakened and inflamed, making it more prone to injury.
Anatomy
The Achilles tendon is a thick, fibrous band connecting the calf muscles to the heel bone (calcaneus). It plays a critical role in movements like pointing the foot downward and lifting the heel. This function is essential for actions such as walking, jumping, standing on tiptoes, and climbing stairs. When the Achilles tendon is ruptured, performing these movements becomes extremely difficult or impossible.
Causes
Achilles tendon ruptures are most common in men aged 30 to 50 who engage in sports like basketball, football, or tennis. These activities often involve sudden, forceful movements that place excessive stress on the leg and foot. The tendon may tear if the foot is suddenly forced into a flexed position while the calf muscles contract powerfully. Additionally, Achilles tendon ruptures can occur in individuals with Achilles tendonitis, where chronic inflammation weakens the tendon over time.
Symptoms
A loud "pop" is often heard when the Achilles tendon ruptures, followed by a sharp, intense pain in the back of the calf or lower leg. Swelling and bruising typically develop due to internal bleeding. Those affected will struggle to point their foot downward or raise their heel, making activities like walking, jumping, or standing on tiptoes very challenging.
Diagnosis
To diagnose an Achilles tendon rupture, a doctor will perform a physical examination and review the patient’s medical history. The most reliable test is the Thompson Test, where the doctor squeezes the calf muscles while the patient lies face down. If the foot does not move, it indicates a potential Achilles tendon tear. Imaging tests such as ultrasound or MRI may be used to further assess the tear’s severity. In some cases, x-rays are ordered to rule out bone injuries.
Treatment
Each case of Achilles tendon rupture is unique, and treatment decisions are made based on the individual’s activity level and preferences. Both surgical and non-surgical options are available.
For individuals who are less active or have health risks that complicate surgery, a non-surgical approach is recommended. This usually involves immobilization in a cast for about six weeks, followed by physical therapy to restore muscle strength, flexibility, and balance. While effective, non-surgical treatment carries a higher risk of re-rupture compared to surgery.
Surgery
Surgery is typically recommended for more active individuals who wish to resume high-impact activities. The procedure, performed under anesthesia, involves making an incision behind the ankle and reattaching the torn tendon. After surgery, the foot is immobilized in a splint or cast for four to six weeks, and physical therapy begins once healing has progressed. Surgery offers a lower risk of re-rupture and better outcomes for regaining leg strength.
Recovery
With proper treatment and rehabilitation, most people can return to their regular activities, whether they opt for surgery or non-surgical treatment. The healing process can vary, but individuals who undergo surgery generally return to walking and swimming within six weeks and may resume sports after several months. Those opting for non-surgical repair typically require a longer rehabilitation period and face a higher risk of re-injury or loss of strength.