Final answer:
Chronic Monteggia fracture treatment typically involves surgical correction of the ulna malunion and radial head dislocation, followed by rehabilitation.
Step-by-step explanation:
The treatment of chronic Monteggia fractures includes addressing both the radial head dislocation and the ulna malunion that characterize this injury. It is essential to correct the alignment through surgical intervention which often involves open reduction and internal fixation (ORIF) of the ulna. Sometimes, additional procedures such as radial head reduction or reconstruction may be necessary, depending on the severity and chronicity of the fracture.
Postoperatively, rehabilitation is crucial for regaining range of motion and strength. Each case needs to be evaluated individually, and treatment should be conducted by an orthopedic surgeon specialized in fracture management and the complexities associated with Monteggia fractures.