Understanding Spinal Manipulation: A Key Component of Chiropractic Care
Spinal manipulation therapy, also known as spinal adjustments, is a technique where the chiropractor uses their hands, or an instrument to apply a controlled, sudden thrust to a joint of the spine where movement has become restricted. These manual techniques aim to restore or improve joint function, which often helps to resolve inflammation and reduce pain.
Chiropractic manipulations rarely cause discomfort, as the chiropractor adapts the procedure to the specific needs of the patients.
The audible "pop" or "crack" sound associated with these adjustments is termed cavitation. Although satisfying, cavitation does not need to occur for joint functions and pain to improve.
Joint Mobilization:
The chiropractor identifies a specific spinal joint that exhibits restricted movement, stiffness, or misalignment.
Using their hands or a specialized tool, they apply a quick, controlled force to the joint. The force is precisely directed to the target area of the spine.
Creation of Negative Pressure:
When the joint is rapidly manipulated, the space within the joint capsule expands. This rapid expansion leads to a reduction in pressure within the synovial fluid that lubricates the joint.
Formation of Gas Bubbles:
As the pressure within the joint decreases, the dissolved gases (such as carbon dioxide, nitrogen, and oxygen) in the synovial fluid form microscopic gas bubbles.
Cavitation – Release of Gas Bubbles:
The sudden decrease in pressure within the joint causes these gas bubbles to collapse or implode rapidly. This collapse creates a popping or cracking sound, commonly referred to as cavitation.
Effect on the Joint:
Joint cavitations release chemicals called endorphins, which help relieve pain, reduce stress and improve your sense of well-being. It is also believed to alter the joint's sensory receptors, reducing pain signals, improving joint function, and increasing the range of motion.
Pain Relief and Improved Mobility:
The release of the gas bubbles, along with the neurological response in the joint, is thought to provide relief from joint discomfort, muscle tension, and restricted movement. Patients often note positive changes in symptoms immediately after the procedure.