Psychometric Measurement Properties of the Michigan Hand Questionnaire in Patients After Flexor Tendon Repair

Inclusion Criteria: * Informed consent as documented by signature * ≥ 18 years old * Understanding of the German language (written and oral) * Single and multiple finger injuries * Primary flexor tendon injuries in Zone I-V for the fingers and/ or thumb * Treated by the hand surgery department at the Inselspital Bern * Treated with at least a 4-strand core suture Exclusion Criteria: * \< 18 years old * Inability to follow the procedures of the study, e.g. due to language problems, diagnosed psychological disorders or dementia of the patients * Replantation of the injured finger * Fracture of the injured finger * Primary tendon reconstructions