Prediksi Skala Indeks Artroplasti Pada Gonartrosis Akhir (Siaga) Untuk Menilai Keberhasilan Penggantian Sendi Lutut

Abstract

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 Gonartrosis Akhir ) prediction score model and SIAGA survival prediction can be used as predictors for outcome result in knee arthroplasty . The ambispective kohort study was performed on 189 KR operation for 161 arthritis patients at Siaga Raya Hospital Jakarta, period 1990-2003, using survival analysis, diagnostic and reliability test. The results were as follow: ratio female:male: 4.1:1. The age between 44-87 years old with an average 66.4 years old. Survival rate as much as 170 cases, loss to follow up 15 cases and death 2 cases. The PSL survival analysis for degenerative gonarthrosis remains at 96.6% but the survival analysis for rheumatoid arthritis decreased from 95% to 85%. The COX regression analysis are significant for all diagnostic variables: gender, age, stage, bone mass index, underlying disease, previous therapy, and body mass index. The reliability values SIAGA A1 prediction, SIAGA A2 prediction, SIAGA B1 prediction and SIAGA B2 prediction were achieved agreement value in 82-91% range, Kappa 0.2–0.5 range and p = 0,000. We conclude the SIAGA predictions can be used as predictor for knee arthroplasty outcome.

Keywords

• Gonarthrosis
• Skala Indeks Artroplasti pada Gonartrosis Akhir (SIAGA) prediction