Acute: Description for a condition that usually lasts for a short period of time, usually shorter than six months.
Addiction: A compulsive use of a substance even though the substance causes harm. Addiction is not defined by physical dependence or tolerance. Traits of addiction are loss of control, cravings, and adverse consequences resulting from use of a substance.
As with other subjective experiences, such as love, fear, or anger, there's no way to objectively measure pain. We asked Sean Mackey, MD, PhD, chief of the Pain Management Division and associate professor of anesthesia at Stanford University School of Medicine, to explain the unpleasant sensation we all feel in different ways.
Chronic: Description for a condition that lasts for a long time, usually longer than six months.
Facet joint block: Procedure that is performed to determine whether a facet joint is a source of pain, or as a means of pain relief. Facet joints are located on the back of the spine, where one vertebra slightly overlaps another. These joints guide and restrict the spines movement.
Fibromyalgia: Chronic disorder that causes pain and stiffness throughout the tissues that support and move the bones and joints. Pain and localized tender points occur in the muscles, particularly those that support the neck, spine, shoulders, and hips. The disorder includes widespread pain, fatigue, sleep disturbances, and often depression.
Immune system: A complex system that normally protects the body from infections.
Inflammation: A reaction of tissues to injury or disease; inflammation is marked by swelling, redness, heat, and pain. In some cases, inflammation is not evident in chronic pain.
Nerve block: The injection of a nerve-numbing substance into a group of nerves.
Neuropathic: A description for a condition that is nerve-related.
NSAIDs: Non-steroidal anti-inflammatory drugs such as ibuprofen used to treat pain and inflammation.