How Can Tight Muscles of the Hip Joint Cause a Scoliosis?
Effective clinical orthopedic manual therapy must address the cause of the client’s condition. This means that we need to understand the mechanism that creates the problem. When a client presents with a scoliosis, we certainly should work in the region of the scoliosis because the scoliosis itself is a postural distortion pattern that creates bony and soft tissue stress factors. The musculature in the concavity of the scoliotic curve is locked short and the musculature on the convex side is locked long. Further, the concave side to which the spine is laterally flexing has compression forces on the joints and tension pulling forces occur on the convex side. For these reasons, manual therapy can and should be oriented to the soft tissues affected by the scoliotic curve.
However, if the root cause of the scoliosis is not determined and addressed, then long term improvement is not possible. Therefore, it is necessary for the therapist to determine the mechanism that is causing the scoliosis.
- Some scolioses are described as “idiopathic.” The term idiopathic means that the cause is unknown (“idio” as in the word “idiot” refers to not knowing; “pathic” refers to the pathologic condition).
- Other scolioses are direct causes of local muscular imbalances. For example, a tight quadratus lumborum (QL) can cause a scoliosis of the lumbar spine; the concavity of the scoliotic curve present on the side of the tight QL.
- Other scolioses are also caused by asymmetric postural distortion patterns elsewhere in the body, usually in the lower extremity.
Frontal Plane Posture of the Pelvis
Any pathomechanics that results in an unlevel posture of the pelvis in the frontal (coronal) plane can result in a scoliosis as a compensation. If the pelvis drops in the frontal plane on one side, then if the spine were straight, it would lean over to that side, like the Leaning Tower of Pisa. This would result in the head being unlevel. An unlevel head results in the eyes and inner ears being unlevel, which makes it very hard for the nervous system to determine our posture in space, in other words, proprioception becomes compromised.
What Can Drop the Pelvis?
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