Kev txhim kho ntawm kev kho mob pob txha femoral tuaj yeem rov qab mus rau xyoo 1940s thaum Kuntscher tau qhia txog cov txheej txheem kaw intramedullary nailing. Kev siv cov ntsia hlau intramedullary (IMNs) hauv femoral fractures tau dhau los ua tus qauv ntawm kev saib xyuas nyob rau ob peb lub xyoo dhau los, thiab tam sim no kev txhim kho hauv intramedullary nailing thiab kev nce qib hauv cov txheej txheem phais tau tso cai rau kev siv cov intramedullary nailing ntawm lub femur.