Sword Art Online: How Did Kirito Get His Arm Back in Season 1?

Sword Art Online's first season found Kuradeel attacking Asuna. In defending her, leading man Kirito's hand gets sliced off by Kuradeel's blade during the confrontation. A few moments later in a different setting, Kirito appears to be holding a teacup and saucer with both hands, so what happened?

Source: Gamerant