Handling Phases of Bone Cement
The polymerisation of bone cement takes place in four consecutive phases: mixing phase - sticky phase - application phase - setting phase. The videos in this section show in a very concrete and practical way how the surgical team can recognise when the respective processing phase is finished and what needs to be considered when cementing prostheses.
What Does Homogeneously Mixed Bone Cement Look Like?
Mixing phase: polymerisation starts as soon as liquid and powder meet
Duration: 01:20 min.
When is the Bone Cement Ready for Application?
Sticky phase: bone cement becomes a tack free dough (finger test)
Duration: 01:30 min.
When is the Working Time Over?
Working phase: tack free bone cement can be applied until it no longer adheres to itself (cookie test)
Duration: 01:11 min.
When is the Bone Cement Hardened?
Setting phase: prosthesis must be held in final position until bone cement is fully hardened (sound test and incision test)
Duration: 01:05 min.
