 After careful asepsis, local anesthesia was given subcutaneously and a 0.25-gauge hypodermic needle was inserted into the costochondral cartilage junction, taking care not to stray from the rib. 
After careful asepsis , local anesthesia was given subcutaneously and a 0.25 - gauge hypodermic needle was inserted into the costochondral cartilage junction , taking care not to stray from the rib .