Trigger Wrist Associated with Carpal Tunnel Syndrome Caused by Flexor Digitorum Superficialis Muscle Belly Hypertrophy: A Case Report and Literature Review

Background: Trigger wrist is a rare disease with few reported cases in the literature. This condition presents with painful sensation and a clicking sound during finger or wrist movements. Case Report: In this report, we present a 32-year-old man suffering from trigger wrist along with carpal tunnel syndrome caused by muscle belly hypertrophy and extension to the carpal tunnel. The diagnostic approach and surgical techniques are explained. Conclusion: In cases of trigger wrist associated with carpal tunnel syndrome (CTS), there may be an underlying cause covering both the trigger wrist and CTS at the volar side of the wrist. Therefore, a precise clinical examination is recommended to avoid unnecessary surgery, releasing of A1 pulley, or steroid injection.