Table 2.

Outcomes of all rods (n=28)

Failure	Outcome	Time to failure (yr, mo)	Age at failure (yr, mo)
N	Continue to lengthen	NA	NA
N	Continue to lengthen	NA	NA
N	Continue to lengthen	NA	NA
N	Continue to lengthen	NA	NA
N	Continue to lengthen	NA	NA
N	Continue to lengthen	NA	NA
N	Continue to lengthen	NA	NA
N	Continue to lengthen	NA	NA
N	Continue to lengthen	NA	NA
N	Continue to lengthen	NA	NA
N: fail to lengthen in clinic	Lengthened successfully under GA	NA	NA
N: fail to lengthen in clinic	Lengthened successfully under GA	NA	NA
Y: fail to lengthen under GA	Final fusion	1, 3	6, 10
Y: fail to lengthen under GA	Plan for final fusion	2, 0	13, 1
Y: fail to lengthen under GA	Final fusion	2, 3	11, 7
Y: fail to lengthen under GA	Plan to exchange for further MCGR	3, 1	7, 6
Y: fail to lengthen under GA	Converted to traditional rod	1, 3	12, 0
Y: fail to lengthen under GA	Rods explanted and braceda)	1, 3	7, 3
Y: fail to lengthen under GA	Final fusion	1/6	12, 11
Y: broken rod	Revised to further MCGRb)	1/6	7, 1
Y: ran out of rod length	Rods exchanged	2, 3	6, 8
Y: broken actuator pin	Plan to explant	3, 8	7, 8
Y: broken actuator pin	Final fusion	5, 4	14, 5
Y: broken actuator pin	Final fusionc)	1, 8	8, 0
Y: broken actuator pin	Plan for final fusion	1, 3	12, 2
Y: screws pulling out	Final fusion	2, 7	10, 0
?: fail to lengthen in clinic	Plan for lengthening under GA	2, 3	6, 8
?: fail to lengthen in clinic	Plan for lengthening under GA	4, 0	9, 1

NA, not applicable; GA, general anesthesia; MCGR, magnetically controlled growth rod.

^a)Patient under investigation for metal allergy.

^b)Single rod revised to two-rod construct.

^c)Syndromic child underwent final fusion in accordance with family’s wishes.