Entrapment neuropathies of the upper extremity are common, debilitating 
conditions. Most patients with these neuropathies are readily diagnosed on 
purely clinical grounds and may be effectively managed with nonoperative 
measures. However, the broad differential diagnosis often necessitates 
electrodiagnostic testing and radiographic imaging to clarify the situation. 
This review focuses on three of the most common entrapment neuropathies in the 
upper limbs: carpal tunnel syndrome (median nerve entrapment at the wrist), 
cubital tunnel syndrome (ulnar nerve entrapment at the elbow), and radial tunnel 
syndrome (posterior interosseous nerve entrapment). Anatomical considerations, 
patient evaluation, indications for surgical intervention, options for surgical 
approaches, outcomes, and complications are discussed.