Knee replacement (KR) is an expensive operation, in order to have cost effective benefit, a predictor for the operative outcome is required. SIAGA (Skala Indeks Artroplasti pada Gonarfrosis Akhir) prediktor score model and SIAGA zurvival prediction can be used as predictor for outcome result in knee arthroplasty. The ambispective kohort study was performed on 189 KR operation for 181 artrits pa…