Table 1.

Preoperative, early postoperative, and 10-year follow-up SPK, AWA, and canal narrowing results.

Patients (n: 45)	Preoperative	Early postoperative	Last control	p
	Mean ± SD	Mean ± SD	Mean ± SD
	Med (Min–Max)	Med (Min–Max)	Med (Min–Max)
aSPK (°)	27.42 ± 9.34	8.20 ± 4.69	16.26 ± 3.04	<0.001
	30 (3–46)	6 (3–20)	16 (7–37)
aAWA (°)	22.04 ± 7.08	8.31 ± 4.39	11.8 ± 2.98	<0.001
	24 (10–33)	7 (2–18)	11 (9–25)
bCanal narrowing (%)	48.64 ± 14.05		8.2 ± 4.61	<0.001
	48 (20–80)		16 (0–16)

^aOne way ANOVA on repeated measures.

^bWilcoxon test.