SHinjection,PSHinjectionandPCinjectionwerese‐made .Filteredwith0.22 μ mfiltermembraneunderasepticcondi)wasinjectedinto articularcavitiesofrightkneesofa After3d,theinjectionwasperformedagain .Onthe seventhdayaftermodel‐building,allgroupswereinjectedwiththe ......