What Cobb angle requires bracing?

AIS bracing indicated for Cobb 20-45 degrees in skeletally immature patients (Risser 0-2) with documented progression. Bracing reduces curve progression to >50 degrees requiring surgery from 50% to 5-10% (BRAIST trial with nighttime bracing, Weinstein 2013).

What Cobb angle requires surgical fusion?

Cobb >45-50 degrees in skeletally immature or >50 degrees in mature patients (progressive or symptomatic) warrants posterior spinal fusion. Curves 5-7 degrees/year) also warrant surgery consideration.

How is Cobb angle measured?

Cobb angle: (1) Identify most tilted superior end vertebra and most tilted inferior end vertebra. (2) Draw line along superior end plate of upper vertebra. (3) Draw line along inferior end plate of lower vertebra. (4) Angle between perpendiculars to these lines = Cobb angle.

Cobb Angle Measurement and Scoliosis Severity Classification

Calculate Cobb angle for scoliosis measurement and classify severity: mild <20 degrees, moderate 20-40 degrees, severe >40 degrees. Risser stage and growth potential determine bracing vs surgical thresholds. Adolescent idiopathic scoliosis (AIS) Cobb >45-50 degrees warrants fusion.

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Frequently Asked Questions

What Cobb angle requires bracing?

What Cobb angle requires surgical fusion?

How is Cobb angle measured?