WEBVTT 00:00:00.000 --> 00:00:03.179 (English captions by Jade Cheng from the University of Michigan) 00:00:03.179 --> 00:00:06.160 Evaluate the injured finger for flexion. 00:00:06.160 --> 00:00:10.940 Inability to flex the isolated finger at the metacarpophalangeal joint may indicate a partial 00:00:10.940 --> 00:00:13.900 or complete tear of the flexor digitorum superficialis.