Spinal Mechanics

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What are the Forces that Lock-in an Osteopathic Lesion  

Misdirected forces placed on the pelvis

The forces that lock-in Osteopathic lesions come from the misdirected gravitational and side-shift forces imposed on the pelvis. With a lesioned pelvis every time weight is exerted on the pelvis the forces that create an osteopathic lesion are reinforced.  This means that every time a person stands or walks they reinforce the osteopathic lesions in the sacroiliac and spinal joints.


This is why it it essential to correct the pelvic lesion before attempting to correct the sacroiliac and spinal joint lesions. If the pelvic lesion is not corrected any corrections above will be transitory.


Implementing classical iliosacral side-role manipulative techniques it is hard to near impossible to correct sacroiliac and pelvic lesions. PPT’s remove the iliosacral, sacroiliac and pelvic lesion.


Examples of pelvic lesions

Look at the photographs to the left ‘A’ and ‘B’.


A’, shows a typical forward bending  posture where L3 is lesioned with rotation and side-bending to the right.


B’, shows a typical backward bending posture where L3 is lesioned with side-bending to the left and rotation to the right.


These are two most common posture types.  


In posture ‘A’ reactive ground force travels up the left leg and swivels it upwards towards the right. In doing this it rotates the whole pelvis to the right. It is this twisting force that locks in the sacroiliac and spinal lesions.


In posture ‘B’ reactive ground force travels up the right leg and swivels the whole pelvis towards the left and superiorly on the left. It is this twisting force that locks in the sacroiliac and spinal lesions.


L3-Right-Right

L3-Left -Right

A

B

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