Piriformis Syndrome

Piriformis syndrome is a condition in which the piriformis muscle becomes tight or spasms, and irritates the sciatic nerve. This causes pain in the buttocks region and may even result in referred pain in the lower back and thigh. Patients often complain of pain deep within the hip and buttocks, and for this reason, piriformis syndrome has also been referred to as "Deep Buttock" syndrome.

What is the Piriformis?
The piriformis is a small muscle located deep within the hip and buttocks region. It connects the sacrum (lower region of the spine) to the top of the femur (thigh bone) and aids in external rotation (turning out) of the hip joint.

As you can see from the diagram to the right, there are many muscles and tendons that make up the hip and buttocks region. The diagram shows the posterior (rear) view of the buttock. The piriformis is the horizontal muscle in the center of the picture running over the top of the sciatic nerve.

What Causes Piriformis Syndrome?
Piriformis syndrome is predominantly caused by a shortening or tightening of the piriformis muscle, and while many things can be attributed to this, they can all be categorized into two main groups: Overload (or training errors); and Biomechanical Inefficiencies.

Overload (or training errors): Piriformis syndrome is commonly associated with sports that require a lot of running, change of direction or weight bearing activity. However, piriformis syndrome is not only found in athletes. In fact, a large proportion of reported cases occur in people who lead a sedentary lifestyle. Other overload causes include:

• Exercising on hard surfaces, like concrete;
• Exercising on uneven ground;
• Beginning an exercise program after a long lay-off period;
• Increasing exercise intensity or duration too quickly;
• Exercising in worn out or ill fitting shoes; and
• Sitting for long periods of time.

Biomechanical Inefficiencies: The major biomechanical inefficiencies contributing to piriformis syndrome are faulty foot and body mechanics, gait disturbances and poor posture or sitting habits. Other causes can include spinal problems like herniated discs and spinal stenosis. Other biomechanical causes include:

• Poor running or walking mechanics;
• Tight, stiff muscles in the lower back, hips and buttocks;
• Running or walking with your toes pointed out.

Symptoms
Pain (or a dull ache) is the most common and obvious symptom associated with piriformis syndrome. This is most often experienced deep within the hip and buttocks region, but can also be experienced anywhere from the lower back to the lower leg.

Weakness, stiffness and a general restriction of movement are also quite common in sufferers of piriformis syndrome. Even tingling and numbness in the legs can be experienced.

Treatment
Piriformis syndrome is a soft tissue injury of the piriformis muscle and therefore should be treated like any other soft tissue injury. Immediately following an injury, or at the onset of pain, the R.I.C.E.R. regime should be employed. This involves Rest, Ice, Compression, Elevation, and Referral to an appropriate professional for an accurate diagnosis.

It is critical that the R.I.C.E.R. regime be implemented for at least the first 48 to 72 hours. Doing this will give you the best possible chance of a complete and full recovery.

Prevention
Prevention is the key when it comes to piriformis syndrome. The more you can do to prevent it, the better off you'll be. There are a number of preventative techniques that will help to prevent piriformis syndrome, including modifying equipment or sitting positions, taking extended rests and even learning new routines for repetitive activities. Here are four preventative measures that are also important and effective.

First, Before any activity be sure to thoroughly warm up all the muscles and tendons that will be used during your sport or activity.

Second, rest and recovery are extremely important; especially for athletes or individuals whose lifestyle involves strenuous physical activity. Be sure to let your muscles rest and recover after heavy physical activity.

Third, strengthening and conditioning the muscles of the hips, buttocks and lower back will also help to prevent piriformis syndrome.

Stretching is one of the most under-utilized techniques for improving athletic performance, preventing sports injury and properly rehabilitating sprain and strain injury. Don't make the mistake of thinking that something as simple as stretching won't be effective.