Jennifer is an 18-year-old girl who comes to the emergency room after a fall during a soccer game. Jennifer explains that she fell on her left side and kept her arm out straight to break her fall. She has been experiencing severe pain and limited range of motion in her left shoulder. The clinician has diagnosed Jennifer with a dislocated shoulder. Which of the following statements are true concerning shoulder dislocation?

a. Posterior dislocations are more common than anterior dislocations.
b. There is a risk of neurovascular and neurosensory trauma, so the clinician should check for distal pulses.
c. Recurrent dislocations are uncommon and would require a greater force to result in injury.
d. Surgery is most commonly the treatment of choice.