Carpal tunnel syndrome has an incidence of 99 per 100,000 people and a
prevalence ranging from 1% to 10%. Both open and endoscopic methods o
f decompression remain popular, and 80% to 90% of patients obtain good
or excellent results from either method. For patients with severe wea
kness of the thenar muscles, the Camitz palmaris longus transfer has b
een effective.