I have renal caliculi of about 22mm in diameter. is surgery the only solution?

Lithotripsy: 22mm stone is large. For certain large kidney stones your doctor may recommend a procedure called extracorporeal shock wave lithotripsy (sound waves to create strong vibrations)that break the stones into tiny pieces that can be passed in your urine. The procedure lasts about 45 to 60 minutes and can cause moderate pain, so usually have sedation or anesthesia.