Table 3.

Preoperative and postoperative clinical assessment

Clinical assessment	Preoperative	Postoperative	P value
Serum uric acid, μmol/L (mean, SD)	540.5 ± 132.4	442.0 ± 109.2	0.000
VAS (mean, SD)	3.8 ± 1.9	1.4 ± 1.7	0.000
AOFAS (mean, SD)	70.3 ± 15.9	85.6 ± 13.0	0.000
RR, n/year	1.5 (1, 3.75)	0 (0, 0.75)	0.000
Range of motion, degrees (mean, SD)	45.8 ± 19.5
Dorsiflexion, degrees	10 (5, 20)
Plantarflexion, degrees	30 (20, 45)

Data were present as mean ± standard deviation for normal variables and median (interquartile range) for nonnormal variables

VAS, visual analog pain scale; AOFAS, American Orthopaedic Foot & Ankle Society ankle-hindfoot score; RR, recurrence rate