Characteristics analysis of segmental and regional lumbar spontaneous compensation post thoracic fusion in Lenke 1 and 2 adolescent idiopathic scoliosis

Table 3 Comparison of segmental and regional compensation at immediate erect and final follow-up

	compensation					P value
	L1/2	L2/3	L3/4	L4/5	L5/S1	Overall P value	P1	P2	P3	P4
Disc parameters
Immediate erect minus preoperative	2.70 ± 4.68	2.82 ± 4.19	2.21 ± 4.38	−0.21 ± 4.31	−0.59 ± 2.71	< 0.001	0.889	0.461	0.003	0.643
Final follow-up minus preoperative	3.84 ± 5.96	3.09 ± 4.54	2.30 ± 4.53	−0.12 ± 3.89	−1.36 ± 2.80	< 0.001	0.396	0.372	0.007	0.162
P value	0.286	0.753	0.718	0.924	0.159	–
Lumbar curve	compensation					paired t test
Lumbar curve	Upper coronal lumbar curve			Lower coronal lumbar curve		P value
Immediate erect minus preoperative	7.73 ± 8.85			−0.80 ± 5.13		< 0.001
Final follow-up minus preoperative	9.22 ± 10.39			−1.49 ± 5.14		< 0.001

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