Can obstetrical brachial plexus palsy be caused by a cervical rib

Background The incidence of obstetric brachial plexus palsy (OBPP) is between 0.38 to 2.6 per 1000 live births. However, incidence of OBPP caused by cervical rib is unknown. Cervical ribs prevalence is 0.74–12 % and is higher in females. We describe such a case of OBPP successfully treated with early operative intervention.