Prothèse ya sima ni uburyo bwagaragaye bwo gukosora mu kubaga gusimburana hamwe, ukoresheje sima yo mu magufa kugirango ugere ku buryo bwihuse hagati yimiterere n'amagufwa. Iyi ngingo isobanura amahame yayo yo gukosora, ibimenyetso byerekana amavuriro, ibyiza, aho bigarukira, nuburyo prostate ya sima igereranya na sisitemu idafite sima mubikorwa bya orthopedic bigezweho.