Comparison of distraction arthroplasty alone versus combined with arthroscopic microfracture in treatment of post-traumatic ankle arthritis

Table 2 Comparison of clinical outcomes between the distraction group and the combined group

Outcomes	Distraction group (n = 46)	Combined group (n = 50)	P value*
Operative time (min)	47.4 ± 7.1	60.6 ± 12.1	<0.001
AOFAS
Preoperative	59.0 ± 4.7	58.0 ± 4.9	n.s.
Final follow-up	85.0 ± 4.9	88.9 ± 5.4	<0.001
AAS
Preoperative	3.6 ± 1.1	3.3 ± 1.0	n.s.
Final follow-up	6.5 ± 1.1	7.1 ± 1.3	0.009
VAS
Preoperative	6.4 ± 0.9	6.7 ± 0.9	n.s.
Final follow-up	2.3 ± 0.8	2.0 ± 0.7	0.04

Unless otherwise stated, the data are presented as mean ± SD
AAS ankle activity score, AOFAS American Orthopaedic Foot and Ankle Society ankle-hindfoot score, VAS visual analog scale
*Independent t test. The P values shown are for intergroup comparisons. Significance was accepted for P values of <0.05

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