The spine has about 24 vertebrae with most having three joints. One joint is a disc and the other two are joints just like your finger joints that are synovial type but called facet joints. When we imbricate our facet joints of the spine as suggested by Horrigan in a condition called facet Arthrosis, pain can be generated just the same as when one stubs their finger or a toe. We all know that stubbing produces more than one type of pain because we have probably experienced it. The spine has 6 different pain mediators. Pain killers affect 2 or sometimes 3 different types of pain mediator. Meaning that pain killers have no effect on some back pain.
Imagine stubbing your finger against a wall over and over 24/7 for about two weeks. This behaviour would cause you to have a reasonably sore finger. You can stop stubbing your finger; probably because someone can point it out to you and unlike the spine you do not have to use it to move around. You have to use your spine when you move. Thus you will have a certain amount of stubbing that continues with regard to the spinal joints.
The spinal joints are surrounded by other tissues that can be pain sensitive and also be part of mixed up motor sensory signals within your nervous system. essentially a healthy joint is moving well in it’s full range of motion with synovial fluid providing nutrients in and waste product removal. A healthy joint is only part of the movement that you perform when you move. Having joint manipulation may be only part of a strategy to get you well, once again.
If you do nothing (called natural history) back pain will likely resolve in about 6 weeks. Pain killers can help to take the edge off of your symptoms during that time and you can get through it without body manipulation. Unfortunately the route of natural history can mean that your nervous system adapts to a new normal (learns to have back pain). This new normal is like updating your operating system on your computer; it is changed from the original. Once installed a new normal could return back pain as back pain is now part of your normal when you get up in the morning (load up your operating system).
Getting bodywork for a back episode helps prevent the accumulation of injuries that can occur when left to natural history. A psychological impact of (natural history) having pain in the body for over three weeks means that you become more sensitive to pain in the same area in the future. Over time you can accumulate many odd patterns of movement in a lifetime that lead you to abnormally load your tissues and send to the brain conflicting sensory motor signals. Conflicting sensory motor signals (subluxation, dysafferentation) can be the problem behind surprising bouts of back pain. The type of episodes that are really severe for a day or two and then symptomatically resolve like there was never a symptom. These conflicting messages are an indication that your sensory system could do with some help. A bodyworker provides sensory information to your brain about your body through the medium of touch (amongst other interventions). Once the right touch ‘language’ is used then your conflicting sensory motor signals conflict no more.