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Algorithms for the segmental motor innervation of the extremities
The American Surgeon
|May 1, 1987
Summary
This study reveals a clear relationship between joint movement complexity and spinal cord innervation patterns. Algorithms presented simplify understanding of motor innervation for clinical application.
Area of Science:
- Neuroscience
- Kinesiology
- Anatomy
Background:
- The segmental motor innervation of extremities dictates joint kinematics.
- Proximal joints exhibit more complex movements controlled by broader spinal cord levels compared to distal joints.
Purpose of the Study:
- To present algorithms summarizing the relationship between joint location, movement complexity, and spinal cord innervation.
- To provide a clinically applicable method for understanding motor control principles.
Main Methods:
- Development of algorithms based on anatomical and kinematic principles of limb innervation.
- Creation of summary charts and a stick figure to illustrate the innervation patterns.
- Validation of algorithms against established anatomical authorities.
Main Results:
- Algorithms accurately reflect the segmental motor innervation of muscles.
- The proposed method demonstrates good agreement with recognized authorities on spinal cord levels.
- A simplified clinical application method is presented using a specific patient posture.
Conclusions:
- The study establishes a predictable pattern correlating joint kinematics with spinal cord innervation levels.
- The developed algorithms offer a straightforward tool for clinicians to understand and apply motor control principles.
- The 'piano playing' or 'automobile driving' posture facilitates understanding of cranial and caudal spinal cord level contributions to joint motion.
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01:54The Spinal Cord
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