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. Author manuscript; available in PMC: 2013 Apr 28.
Published in final edited form as: Clin Rheumatol. 2011 Jan 15;30(6):805–813. doi: 10.1007/s10067-010-1653-6

Figure 5. Sonographic Visualization of Hydrodissection.

Figure 5

In this transverse image, using the transverse (short-axis) injection approach, after manipulation and rotation of the bevel, the carpal tunnel space is dilated under the flexor retinaculum, avoiding direct injection into the tendon fibers, and specifically avoiding any proximity to the median nerve or ulnar artery.