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Scoliosis and trunk muscles
Journal of Pediatric Orthopedics
|March 1, 1984
Summary
Muscular deficiencies from polio trigger paralytic scoliosis but do not determine its severity or progression. This study found paralysis is not correlated with curve patterns, evolution rate, or gravity
Area of Science:
- Orthopedics
- Neurology
- Pediatrics
Background:
- Paralytic scoliosis is a complex spinal deformity.
- Muscular deficiencies are implicated in its development.
- Poliomyelitis is a common cause of paralytic scoliosis.
Purpose of the Study:
- To investigate the role of muscular deficiencies in paralytic scoliosis.
- To determine the relationship between muscle strength and scoliosis characteristics.
- To outline general principles of scoliosis evolution.
Main Methods:
- Analysis of spine films from 108 children with poliomyelitic scoliosis.
- Muscle testing during the growth phase, assessed 2 years post-polio.
- Correlation of muscle test values with curve convexity, evolution rate, gravity effects, and reducibility.
Main Results:
- Paralysis triggers scoliosis but does not dictate thoracic or lumbar curve patterns.
- Muscle deficiencies have minimal impact on thoracolumbar curve convexity.
- No correlation found between muscle strength and scoliosis evolution rate, reducibility, or gravitational collapse.
Conclusions:
- While polio initiates scoliosis, intrinsic spinal factors likely govern its progression.
- General laws of scoliosis evolution apply regardless of the etiology.
- Further research into multifactorial pathogenic factors is warranted.