Abstract
The correction of large inter-maxillary or craniofacial elastics often suggests orthognathic surgery, as a complement to orthodontic preparation. This depends on cephalic extremity, which generates important bone movement, affecting the centre of gravity of the head and muscular and articular activities. Many receptors act on main body balance and lead to distant lesions, when affected, just like better coordination of the jaws can help to reduce associated postural imbalance. Literature is poor in this field. We are therefore presenting some concepts of general posture and means to assess the initial postural context of our patients to optimize the integration and orientation of our ortho-surgical treatment. Overall care of patients and interdisciplinarity are factors of success and treatment stability.
Highlights
The entire organism is organized into body segments that can move relative to each other and that have their own center of gravity
Any displacement of one of the segmental centers of gravity shifts it in relation to the body’s line of gravity
Studies published on the impact of orthodontic–surgical treatments are even rarer and are limited to the cephalic extremity
Summary
The entire organism is organized into body segments that can move relative to each other (head, upper limbs, lower limbs, trunk etc.) and that have their own center of gravity. In the orthostatic position (subject in the balanced, upright standing position), the positioning of the different centers of gravity must project toward the floor of the entire body’s center of gravity to stay within the support shape corresponding to the plantar surface[6] Any displacement of one of the segmental centers of gravity shifts it in relation to the body’s line of gravity (which passes through the vertex in front of the cervical spine, intersects L3, follows the femoral axis, and passes in front of the knee and tibiotarsal joint).
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