Idiopathic Scoliosis Progression: Presenting Rib and Segmental Rib Index as Predictors-A Literature Review

Area of Science:

• Orthopedics
• Radiology
• Pediatric Spine Deformity

Background:

• Idiopathic Scoliosis (IS) is a complex spinal deformity requiring accurate prognostic factors for effective management.
• Early identification of progression is crucial for timely intervention in Infantile (IIS), Juvenile (JIS), and Adolescent (AIS) Idiopathic Scoliosis.

Purpose of the Study:

• To provide a comprehensive overview of established and emerging predictor factors for Idiopathic Scoliosis progression.
• To highlight key methods for assessing skeletal maturity and curve severity in IS.
• To introduce the Rib and Segmental Rib Index as a novel predictor of scoliosis progression.

Main Methods:

• Review of established methods for assessing skeletal maturity including iliac apophysis, Sanders staging, and Distal Radius Ulna (DRU) classification.
• Analysis of imaging techniques like Cobb angle and rib hump deformity assessment.
• Exploration of prognostic factors related to age at onset and treatment status (braced vs. untreated).

Main Results:

• Patient age at diagnosis and skeletal maturity are critical for predicting IS progression.
• Various imaging and staging systems (e.g., Sanders, DRU) aid in forecasting curve deterioration.
• The Apical Convex Rib-Vertebra Angle and the Rib and Segmental Rib Index show potential as progression indicators.

Conclusions:

• Accurate prediction of IS progression relies on a combination of skeletal maturity assessment, curve characteristics, and patient age.
• The Rib and Segmental Rib Index presents a promising new parameter for evaluating rib cage deformity and predicting scoliosis progression.