Figure 3. Pronator tunnel following decompression.

The pronator teres muscle was retracted radially by the retractor at the bottom of the photograph, while the flexor digitorum superficialis muscle belly was retracted ulnarly by the retractor at the top of the photograph, and the distal edge of the flexor superficialis tendinous arch was retracted distally by the retractor on the right of the photograph. The anterior interosseous nerve was visualized in continuity and fully decompressed in the pronator tunnel between these retractors.