Overview The Achilles tendon connects the muscles in the back of your calf to your heel bone. There are two basic variations of Achilles injuries. Achilles tendonitis, and a complete tear. It?s important to know whether the Achilles is torn or not, because the treatment is very different, a torn Achilles may require surgery. Achilles tendonitis probably means rehab and rest. While tendonitis is a gradual onset of pain that tends to get worse with more activity, an Achilles tear is a sudden injury, and it feels as if you were hit or kicked in the back of the ankle. A tear usually affects your ability to walk properly. Because an Achilles tendon rupture can impair your ability to walk, it?s common to seek immediate treatment. You may also need to consult with doctors specializing in sports medicine or orthopaedic surgery. Causes The Achilles tendon is most commonly injured by sudden plantarflexion or dorsiflexion of the ankle, or by forced dorsiflexion of the ankle outside its normal range of motion. Other mechanisms by which the Achilles can be torn involve sudden direct trauma to the tendon, or sudden activation of the Achilles after atrophy from prolonged periods of inactivity. Some other common tears can occur from overuse while participating in intense sports. Twisting or jerking motions can also contribute to injury. Fluoroquinolone antibiotics, famously ciprofloxacin, are known to increase the risk of tendon rupture, particularly achilles. Symptoms Ankle pain and swelling or feeling like the ankle has ?given out? after falling or stumbling. A loud audible pop when the ankle is injured. Patients may have a history of prior ankle pain or Achilles tendonitis, and may be active in sports. Swelling, tenderness and possible discoloration or ecchymosis in the Achilles tendon region. Indentation above the injured tendon where the torn tendon may be present. Difficulty moving around or walking. Individual has difficulty or is unable to move their ankle with full range of motion. MRI can confirm disruption or tear in the tendon. Inability to lift the toes. Diagnosis Diagnosis is made by clinical history; typically people say it feels like being kicked or shot behind the ankle. Upon examination a gap may be felt just above the heel unless swelling has filled the gap and the Simmonds' test (aka Thompson test) will be positive; squeezing the calf muscles of the affected side while the patient lies prone, face down, with his feet hanging loose results in no movement (no passive plantarflexion) of the foot, while movement is expected with an intact Achilles tendon and should be observable upon manipulation of the uninvolved calf. Walking will usually be severely impaired, as the patient will be unable to step off the ground using the injured leg. The patient will also be unable to stand up on the toes of that leg, and pointing the foot downward (plantarflexion) will be impaired. Pain may be severe, and swelling is common. Sometimes an ultrasound scan may be required to clarify or confirm the diagnosis. MRI can also be used to confirm the diagnosis. Non Surgical Treatment Non-surgical treatment of Achilles tendon rupture is usually reserved for patients who are relatively sedentary or may be at higher risk for complications with surgical intervention (due to other associated medical problems). This involves a period of immobilization, followed by range of motion and strengthening exercises; unfortunately, it is associated with a higher risk of re-rupture of the tendon, and possibly a less optimal functional outcome. Surgical Treatment There are two different types of surgeries; open surgery and percutaneous surgery. During an open surgery an incision is made in the back of the leg and the Achilles tendon is stitched together. In a complete or serious rupture the tendon of plantaris or another vestigial muscle is harvested and wrapped around the Achilles tendon, increasing the strength of the repaired tendon. If the tissue quality is poor, e.g. the injury has been neglected, the surgeon might use a reinforcement mesh (collagen, Artelon or other degradable material). In percutaneous surgery, the surgeon makes several small incisions, rather than one large incision, and sews the tendon back together through the incision(s). Surgery may be delayed for about a week after the rupture to let the swelling go down. For sedentary patients and those who have vasculopathy or risks for poor healing, percutaneous surgical repair may be a better treatment choice than open surgical repair.