Don't go with a shoulder wound too casually; they can be very nasty. If they shatter enough bones or damage enough nerves it may be necessary to amputate the arm, as happened to my uncle during WW2, and if enough of the shoulder is destroyed you can't use a prosthetic arm. Short of that, any really serious bone injury to the shoulder requires surgery and a lengthy period in cast that immobilises the shoulder and a chunk of arm - not quite as bad as a spinal injury, but close.
