Fig. 10From: A practical guide for performing arthrography under fluoroscopic or ultrasound guidanceUltrasound-guided aspiration of the first metatarsophalangeal joint. a Longitudinal view demonstrating distension of the dorsal recess by joint effusion. Note that the dorsal recess extends proximally on the dorsum of the first metacarpal. b Transverse view demonstrating the insertion of the needle in the dorsal recess and fluid aspirationBack to article page