Halo gravity traction for pediatric scoliosis and kyphoscoliosis: A review of current evidence and best practices

Table 3 Coronal and sagittal Cobb angle corrections, after application of halo gravity traction and after definitive fusion

Ref.	Year	Sample size	Mean follow-up	Mean age at surgery (years)	Mean traction time	Maximum weight applied (% body weight)	Coronal Cobb correction				Sagittal Cobb correction
							Pre-traction coronal Cobb (degrees)	Post traction coronal Cobb (% correction)	Coronal Cobb after surgery (% correction)	Cobb at final follow-up	Pre-traction sagittal Cobb	Post traction sagittal Cobb (% correction)	Sagittal Cobb at final surgery (% correction)	Sagittal Cobb at final follow-up
Grabala et al[38]	2024	20	3.8 years	16.5	36 days	50	124	76.4 (38.4)	45 (63.7)	44.09	96.5	68.5 (29)	45.8 (52.5)	44
Hwang et al[26]	2020	59	NA	15.2	3.1 weeks	44	96.98	63.38 (34.4)	32.58 (65.9)	39.4	26.5	NA	22.2 (16)	23.5
LaMont et al[19]	2019	107	2 years	11.3	82.1 days	49.50	92.6	65.8 (29)	47 (50)	48.4	74	56.8 (23.2)	47.7 (35.5)	50.9
Garabekyan et al[16]	2014	21	2.4 years	13	77 days	50	Major curve-101; compensatory minor curve-63	Major curve-69 (31.6); compensatory minor curve-41 (34.9)	Major curve-58 (43); compensatory minor curve-39 (38)	Major curve-62; compensatory minor curve-44	67	50 (25.4)	47 (29.8)	50
Koller et al[6]	2012	45	33 months	24	30 days	33	106	94 (11.3)	76 (28.3)	84	90.7	76 (16.2)	70 (22.8)	76
Sink et al[5]	2001	21	NA	7.4	13 weeks	25 to 50	83	55 (33.7)	51 (38.5)	61	97	72 (25.8)	NA	82

NA: Not available.