Figure 10a. Peroneus brevis tendon loop (Lee procedure) in a 47-year-old man. (a) Oblique radiograph of the ankle shows a distal fibular tunnel (arrows). (b) Axial computed tomographic scan of the ankle obtained after air-contrast arthrography shows one segment of the peroneus brevis tendon loop lateral to the fibula (arrow) and another segment coursing through the fibular tunnel (arrowhead) (cf Fig 9). (c) Longitudinal US image shows a segment of the distal peroneus brevis tendon (arrows) entering the fibular tunnel. F = fibula, PL = adjacent normal peroneus longus tendon. (Left side of image is proximal.) (d, e) Transverse US images show one segment of the peroneus brevis tendon loop (arrow in d) lateral to the fibula (F), another segment entering the fibular tunnel (arrowhead), and a distal tendon anastomosis with echogenic suture material (arrow in e).