Table 1.

Study demographics

Age, gender, initial	AO class	# Level	Method fixation	Levels of fixation	EMG levels	US levels (R & L)
18, F	A3.2	L4	MISS/kyphoplasty	L3–L5	LL2, LL3, RL5	L2–S1
69, F	A3.2	L1	MISS/kyphoplasty	T12–L2	LT12, RL2, LL3	T11–L4
55, F	A3.1	L1	MISS/kyphoplasty	T12–L2	LT12, LL2, LL3	T11–L3
51, M	A3.1	L1	MISS/kyphoplasty	T12–L2	LT12, RL2, RL3	T11–L4
45, M	A3.2	L4	MISS/kyphoplasty	L2–S1	RT12, RL5, RS1	T12–S1
43, M	A3.2	L5	MISS	L4–S1	LL2, LL4, RL4	L2–S1
44, M	A3.1	L1	OSS	T12–L2	RT12, RL2, RL3	T11–L3
60, M	A3.1	L1	OSS	T11–L3	LT12, RL2, RL4	T11–L4
48, M	A3.1	L2	OSS	T12–L4	RT12, RL2, RL3	T11–L4
62, M	A3.1	L1	OSS	T11–L3	LT12, LL2, RL4	T11–L4
49, F	A3.2	L1	OSS	T12–L2	LT11, RT12, LL2	T11–L3
60, F	A3.2	L3	OSS	L2–L4		L1–L5