1. Operation object: Thumb modification of thumb stump is mainly aimed at the situation that thumb is missing or stump exists. Trimming can be used to trim, reshape or adjust various tissues, including but not limited to hand tissues.

2. Purpose and effect: Thumb stump Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb Thumb.