Achilles Tendon Rupture How Do I Know I Have Got One?
The Achilles tendon is the largest and strongest tendon in the body. It functions to help control the foot when walking and running. Ruptures of the Achilles tendon commonly occur in individuals in their 30s and 40s. This age group is affected because these patients are still quite active, but over time their tendons tend to become stiffer and gradually weaken. These ruptures usually occur when an athlete loads the Achilles in preparation to pushing off. This can occur when suddenly changing directions, starting to run, or preparing to jump. These ruptures occur because the calf muscle generates tremendous force through the Achilles tendon in the process of propelling the body. Patients will feel a sharp intense pain in the back of their heel. Patients often initially think that they were ?struck in the back of the heel? and then realize that there was no one around them. After the injury, patients will have some swelling. If they can walk at all, it will be with a marked limp. It is very rare that a rupture of the Achilles is partial. However, a painful Achilles tendonitis or a partial rupture of the calf muscle (gastrocnemius) as it inserts into the Achilles can also cause pain in this area. The pain of an Achilles rupture can subside quickly and this injury may be misdiagnosed in the Emergency Department as a sprain. Important clues to the diagnosis are an inability to push off with the foot and a visible or palpable defect just above the heel bone in the back of the leg.
People who commonly fall victim to Achilles rupture or tear include recreational athletes, people of old age, individuals with previous Achilles tendon tears or ruptures, previous tendon injections or quinolone use, extreme changes in training intensity or activity level, and participation in a new activity. Most cases of Achilles tendon rupture are traumatic sports injuries. The average age of patients is 29-40 years with a male-to-female ratio of nearly 20:1. Fluoroquinolone antibiotics, such as ciprofloxacin, and glucocorticoids have been linked with an increased risk of Achilles tendon rupture. Direct steroid injections into the tendon have also been linked to rupture. Quinolone has been associated with Achilles tendinitis and Achilles tendon ruptures for some time. Quinolones are antibacterial agents that act at the level of DNA by inhibiting DNA Gyrase. DNA Gyrase is an enzyme used to unwind double stranded DNA which is essential to DNA Replication. Quinolone is specialized in the fact that it can attack bacterial DNA and prevent them from replicating by this process, and are frequently prescribed to the elderly. Approximately 2% to 6% of all elderly people over the age of 60 who have had Achilles ruptures can be attributed to the use of quinolones.
Tendon strain or tendon inflammation (tendonitis) can occur from tendon injury or overuse and can lead to a rupture. Call your doctor if you have signs of minor tendon problems. Minor tenderness and possible swelling increases with activity. There is usually no specific event causing sudden pain and no obvious gap in the tendon. You can still walk or stand on your toes. Acute calf pain and swelling can indicate a tear or partial tear of the Achilles tendon where it meets the calf muscle. You may still be able to use that foot to walk, but you will need to see a specialist such as an orthopedic surgeon. Surgery is not usually done for partial tears. Sometimes special heel pads or orthotics in your shoes may help. Follow up with your doctor to check for tendonitis or strain before resuming activity, because both can increase the risk of tendon rupture. Any acute injury causing pain, swelling, and difficulty with weight-bearing activities such as standing and walking may indicate you have a tear in your Achilles tendon. Seek prompt medical attention from your doctor or emergency department. Do not delay! Early treatment results in better outcome. If you have any question or uncertainty, get it checked.
It is usually possible to detect a complete rupture of the Achilles tendon on the history and examination. A gap may be felt in the tendon, usually 4-5cm above the heel bone. This is the normal site of injury and is called an intra-substance tear. The tear can occur higher up about 10cm above the insertion into the heel at the site where the muscles join the tendon, this is known as a musculo-tendinous tear. A special test will be performed which involves squeezing the calf. Normally if the Achilles tendon is intact this causes the foot to point downwards but if it is ruptured it causes no movement. To confirm the diagnosis and the exact site of the rupture it may be necessary to perform an Ultra-sound or MRI scan.
Non Surgical Treatment
Nonsurgical treatment involves extended casting, special braces, orthotics, and physical therapy. Avoids the normal complications and expenses of surgery. Some studies show the outcome is similar to surgery in regard to strength and function. There is risk of an over-lengthened tendon with inadequate tension. Extended immobilization can lead to more muscle weakness. Nonsurgical treatment has a higher incidence of re-rupture than surgical repair. Nonsurgical treatment is often used for nonathletes or for those with a general low level of physical activity who would not benefit from surgery. The elderly and those with complicating medical conditions should also consider conservative nonsurgical treatment.
Surgical techniques for rupture repair are varied but usually involve reapproximation of the torn ends of the Achilles tendon, sometimes reinforced by the gastrocsoleus aponeurosis or plantaris tendon. Open reconstruction is undertaken using a medial longitudinal approach. Studies indicate that patients who undergo percutaneous, rather than an open, Achilles tendon rupture repair have a minimal rate of infection but a high rate of sural nerve entrapment (16.7% of treated cases).