Two men, aged 65 and 27 years, had persistent dysesthesia of digits IV and V 18 and 8 months, respectively, after conservative treatment of dislocated comminuted clavicular fractures. In both patients, the fracture was found to have healed poorly. There was pseudoarthrosis, shortening and malrotation. Following surgical decompression of the neurogenic structures by elongation and internal fixation of the clavicle, motor and sensory functions recovered completely. The incidence of clavicular fractures is high, but complications are rare. Symptom recognition and timely treatment can prevent irreversible nerve damage.