What is IMS?
Intramuscular Stimulation (IMS) is an effective treatment for chronic pain of neuropathic origin. IMS was developed by Dr. Chan Gunn while he was a clinic physician at the Worker’s Compensation Board of British Columbia in the 70’s. He is presently President of iSTOP and clinical professor at the University of Washington’s Multi Disciplinary Pain Center in Seattle and has been awarded the highest honor for his contributions towards solving chronic pain.
IMS is effective and has few side-effects; the technique is also unequaled for finding and diagnosing muscle shortening in deep muscles.
Although IMS uses implements adapted from traditional acupuncture, it is based on scientific, neurophysiological principles. The acupuncture needles used are very thin (much thinner than the hollow needle used to inject medicine or take blood samples). You may not even feel it penetrating the skin, and if your muscle is normal, the needle is painless. However, if your muscle is supersensitive and shortened, you’ll feel a peculiar sensation – like a muscle cramp or Charlie Horse. This is a distinctive type of discomfort caused by the muscle grasping the needle. Patients soon learn to recognize and welcome this sensation. They call it a “good” or positive pain because it soon disappears and is followed by a wonderful feeling of relief and relaxation. The needles may still be in you, but because the muscle is no longer tight, you no longer feel it. What has happened is that the needling has caused your abnormal muscle shortening to intensity and then release. It is important that you experience this sensation in order to gain lasting relief.
“Neuropathy” – or – what happens when nerves start to go wrong…
Doctors usually have no difficulty in treating pain caused by injury (a fracture, for example) or inflammation (such as rheumatoid arthritis). But they are perplexed by pain that shows no sign of tissue damage or inflammation, such as headaches, “whiplash”, backache, tennis elbow or frozen shoulder.
Dr. Gunn had introduced “neuropathic pain”, to describe this type of pain. Typically this occurs when nerves malfunction following minor irritation. Nerves and nerve-endings become extremely sensitive and cause innocent, harmless signals to be exaggerated and misperceived as painful ones. (This characteristic is known medically as supersensitivity). The result is pain, even when extensive medical tests show there is “nothing wrong”. Until recently, supersensitivity has received little attention in medical circles.
The Effects of IMS
The effects of IMS are cumulative – needling stimulates a certain amount of healing, until eventually, the condition is healed and the pain disappears. Some patients treated with IMS have remained pain-free for over 20 years.
Frequency of Treatments
Treatments are usually once a week (but can be spread out to two weeks) to allow time between treatments for h body to heal itself. The number of treatments you require will depend on several factors such as the duration and extent of your condition, how much scar tissue there is (usually increased after previous surgery) and how quickly your body can heal, the rate of healing depends on the condition of your nerves (young people usually heal more quickly, although older is not necessarily slower). If the pain is of recent origin, one treatment may be all that is necessary. In published studies of patients with low back pain, the average number of IMS treatments required was 8.2.
For more information on IMS, please feel free to drop by the clinic and pick up one of our detailed brochures.
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