sentence: There are many different wound classification systems , including the Meggitt – Wagner classification system , the China Air Force General Hospital classification method , the Texas classification system , the S ( AD ) SAD scoring system , the PEDIS system , the DUSS system , the Kobe classification method , the SINBAD classification and the WIFI classification , as well as the SIANM classification method , which was developed by a local provincial foot and ankle center [ 46 ] .