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. 2016 May 16;5(3):e483–e487. doi: 10.1016/j.eats.2016.01.035

Fig 2.

Fig 2

The superficial palmar arch lies distal to the transverse carpal ligament and in proximity to the distal portal in endoscopic carpal tunnel release. Ultrasound assists in locating the superficial palmar arch and prevents inadvertent damage to the arch during distal portal placement.