Brachial Plexus Injury


Temporary or permanent weakened or paralyzed muscles in the arm, shoulder, and hand caused by birth injury to the brachial plexus. The nerves can be stretched, ruptured (torn), or avulsed (pulled out of the spinal column) when excessive traction is applied by the doctor or midwife delivering the baby. Abbreviations used are OBPI (obstetrical brachial plexus injuries) and TBPI (traumatic brachial plexus injuries).