Application of computer assisted surgery in revision total knee arthroplasty

Computer assisted surgery (CAS) is used to improve accuracy of neutral mechanical axis and ligament balancing in primary TKA. However, its efficiency in revision TKA is not clear. The application of CAS in revision TKA provide a significant improvement of prosthesis alignment, balanced flexion and extension gaps, data about joint line position throughout the surgery. However, it requires further investigations about long-term clinical results and survival rate.