Complications in growth-friendly spinal surgeries for early-onset scoliosis: Literature review

Table 4 The number of planned and unplanned surgical procedures in the magnetically controlled growing rods group

Ref.	Subject	Surgical procedures (n)	Planned surgical procedures (n)	Unplanned surgical procedure		% unplanned surgeries to all surgeries	% unplanned surgery to patients with at least one complication	Ratio of planned to unplanned surgery
				n	%
Subramanian et al[38], 2018	31	53	31	22	712	41.52	104.8	1.41
Urbański et al[39], 2020	47	60	47	13	27.72	21.72	81.3	3.62
Akbarnia et al[10], 2014	12	16	12	4	33.3	25.0	100.0	3
Studer et al[40], 2019	30	43	30	13	43.3	30.2	118.2	2.31
Kwan et al[41], 2017	30	44	30	14	46.7	31.8	100.0	2.14
Obid et al[42], 2020	22	46	19	5	22.72	10.92	41.72	3.8
Lampe et al[43], 2019	24	43	24	19	79.22	44.22	172.72	1.26

²The values of the % of unplanned surgeries in which all four complications were analyzed in the paper.