Thoracic kyphosis in light of lumbosacral alignment in thoracic adolescent idiopathic scoliosis: recognition of thoracic hypokyphosis and therapeutic implications

Table 3 Comparison with historical data of AIS and healthy subjects

	Population	Sampe size	Age	PI	PT	SS	TK	LL
Current	T-AIS	83	15.9	48.5	8.8	39.5	16.1	53.0
Yong⁸	T-AIS	95	14.2	44.2	9.2	35.1	15.7	48.5
Mac-Thiong⁹	AIS(King3)	42	13.4	57.3	8.4	47.9	20.3	40.8
Upasani¹⁰	AIS (Lenke1)	53	14.5	55.5	11.5	45.8	18.9	60.5
Lonner¹¹	AIS(Black)	115	15.0	56.0	13.9	42.5	24.7	63.6
Lonner¹¹	AIS(White)	421	14.8	52.5	10.8	42.2	22.9	59.1
Yong	Healthy girls	33	13.6	44.6	11.3	33.3	20.8	49.3
Upasani¹⁰	Healthy individuals	50	13.5	45.5	8.4	37.1	27.9	55.1

ISSN: 1471-2474