Fig. 12.1
US-guided intra-articular ankle injection. (a) Probe and patient position to perform long-axis US-guided intra-articular ankle injection. (b) Anatomical scheme and (c) US scan of long-axis intra-articular ankle injection, T tibia, Ta talus, asterisk articular fluid, arrow needle. (d) US scan of intra-articular ankle injection with coaxial approach