2 months.... still early wor
i guess you are saying your friend have a tendon injured
for those cases
usually need a primary repair if possible (likely done in your friend's case)
then is splinting x 6-8 weeks for healing
then is slowly regaining the range of movement
i guess "OSCAR" - the physiotherapist will be more familiar
usually the doctor will also refer to occupational therapist also to assess the hand movement relative to the job requirements