Table 2.

Procedure and follow-up (mean ± SD)

Parameter	Value
Accurate injections, n (%)	21 (88%)
Accuracy by indication
Kellgren-Lawrence Grade I [n accurate (% of subset)]	NA
Kellgren-Lawrence Grade II [n accurate (% of subset)]	2 (100%)
Kellgren-Lawrence Grade III [n accurate (% of subset)]	10 (100%)
Kellgren-Lawrence Grade IV [n accurate (% of subset)]	5 (62.5%)
(Osteo)chondral defect [n accurate (% of subset)]	4 (100%)
Accuracy by prior ankle surgery
None [n accurate (% of subset)]	9 (90.0%)
Any [n accurate (% of subset)]	12 (85.7%)
Multiple [n accurate (% of subset)]	10 (90.1%)
Procedure time (min)	17 ± 5
Completed follow-up, n (%)	24 (100%)
Follow-up time (median days, IQR)	14 (IQR, 14–16)
Complications, n (%)	0 (0%)

NA: Not applicable; IQR: Interquartile ranges.