A 26-Year-Old Male with F...

A 26-year-old male patient presents to the emergency department following a forearm injury sustained from a fall on the outstretched hand. He complains of immediate pain and swelling in his right forearm, accompanied by difficulty in moving his wrist and fingers. Upon examination, tenderness and crepitus are noted along the forearm, and he demonstrates the inability to fully flex or extend his wrist and fingers. Suggest an appropriate treatment and diagnosis