Table 1.

Summary of patient data

Case	Age (years)/gender	Diagnosis	Neurological status pre-/post-op	Initial surgery	Revision surgery	Follow-up (months)
1	6/male	Hurler’s disease	Lower extremity weakness, sleep apnea, myelopathy/improvement	Laminectomy posterior in situ fusion occiput-C4 ICBG, halo-jacket	Repeat posterior ICBG C0–C4, rhBMP-2, halo-jacket	18
2	2/male	Congenital cervical kyphosis	Lower extremity weakness/improvement, able to ambulate	Posterior in situ fusion C3–T4, ICBG, halo-jacket	Repeat posterior ICBG C3–T4, rhBMP-2, Minerva	11
3	10/male	Thoraco-lumbar kyphosis HSAN 4	Normal	Posterior instrumentation T11–L4, ICBG anterior decompression + cage T12–L3,	Repeat posterior ICBG, rhBMP-2, TLSO brace	13

ICBG Iliac crest bone graft, HSAN hereditary sensory autonomic neuropathy