Fig. 24.

Complication related to orthopaedic hardware. Transverse greyscale (a) and colour Doppler (b) sonograms obtained over the dorsal aspect of the distal radius (a) and wrist (b) in a patient with extensor tendon tenosynovitis due to impingement on screws’ tips. In a, two screw tips are well demonstrated (black arrows) to be extruding from the bone’s dorsal cortex of the radius. Note the thickening or the tendon sheath surrounding the ETs. In b, colour Doppler shows intense local hyperaemia. LT lister tubercle