The purpose of this study is to Prove that injection of 15 to 20 mL of lidocaine 1% into the fracture site (Hematoma block) is more effective in terms of pain relieving then injection of 10 mL of lidocaine 2%, and equally safe in terms of complications, for closed reduction of distal radius fractures.

Inclusion Criteria:

• Patients with Fractures of the distal radius, with or without ulna fracture

Exclusion Criteria:

• Children,
• pregnant women,
• patients with infection or suspected infection on the site for injection.
• Patients whose condition requires general anesthesia (patients with more fractures other than the distal radius and ulna, patients with many damage...)