Table 3.

Classifications of idiopathic scoliosis

Chronological (SoE: V)		Angular (SoE: VI)		Topographic (SoE: V)
Age at diagnosis (years.months)		Cobb degrees			Apex
					from	to
Infantile	0–2.	Low	Up to 20	Cervical	–	Disc C6–7
Juvenile	3–9.	Moderate	21–35	Cervico-thoracic	C7	T1
Adolescent	10–17.	Moderate to severe	36–40	Thoracic	Disc T1–2	Disc T11–12
Adult	18+	Severe	41–50	Thoraco-lumbar	T12	L1
		Severe to very severe	51–55	Lumbar		Disc L1–2
		Very severe	56 or more