Table 2.

Outline of treatments and clinical outcomes

	Initial curve (°)	Age at syrinx drainage	Age at scoliosis surgery	Curve size at the time of syrinx drainage (°)	Curve size at the time of scoliosis surgery(°)	Curve size at immediate post. correction (°)	Final curve (°)	Treatment of syringomyelia	Treatment of scoliosis
1	26	NP	NP	NP	NP	NP	29	observation	TLSO
2	28	NP	NP	NP	NP	NP	21	observation	TLSO
3	31	3.1	NP	31	NP	NP	33	FMD	TLSO
4	29	4.0/5.2	NP	30	NP	NP	5	SPS + SSS	TLSO
5	49	4.9	NP	49	NP	NP	7	FMD	TLSO
6	33/34	10.3	NP	33/33	NP	NP	42/34	FMD	Observation
7	19	13.9	NP	19	NP	NP	6	FMD	Milwaukee brace
8	28	12.4	NP	31	NP	NP	37	VPS	Observation
9	43	14.3	14.7	43	45	17	17	FMD	Post. ICF
10	50	15.3	16.3	50	52	18	18	FMD	Post. ICF
11	57	12.7/12.9	13.8	57	70	37	47	FMD + SPS	Post. ICF
12	30	12.2	14.4	30	66	18	31	SSS + SOC	Post. ICF
13	28	NP	16.7	NP	40	9	16	Observation	Post. ICF
14	44	NP	14.6	NP	45	17	18	Observation	Ant. ICF
15	86	NP	13.1	NP	88	22	27	Observation	Post. ICF
16	83	NP	13.9	NP	83	28	33	Observation	Post. ICF
17	63/71	NP	23.3	NP	62/72	50/50	45/50	Observation	Post. ICF
18	42/35	NP	15.8	NP	45/39	14/14	16/20	Observation	Post. ICF
19	72/59	NP	17.7	NP	72/59	53/34	47/36	Observation	Post. ICF
20	75	NP	20.8	NP	75	32	36	Observation	AP ICF

NP Operation not performed, FMD foramen magnum decompression, VPS ventriculoperitoneal shunt, SPS syringoperitoneal shunt, SSS syringosubarachnoidal shunt SOC; suboccipital craniectomy, ICF instrumented correction and fusion