Surgical upper computer for total knee arthroplasty, and total knee arthroplasty system

A surgical upper computer for controlling a knee-joint soft tissue balance measurement apparatus and performing data acquisition in a total knee arthroplasty, the measurement apparatus comprising a master machine and an accessory, the master machine comprising a butting member respectively acting on distal medial and lateral condyles of a femur and a push plate supporting a tibia, the surgical upper computer comprising:

• a processor;
• and
• a memory, storing a computer program which, when executed by the processor, enables the processor to execute a first operating mode of the surgical upper computer, the first operating mode comprising:
• exhibiting, by an interactive interface, to a user, first information to be input, the first information to be input comprising a magnitude range and change interval of a pushing force applied between a femur and a tibia;
• in response to information input by the user, controlling the butting member and the push plate to apply different pushing forces between the distal medial and lateral condyles of the femur and the tibia at a first preset joint flexion angle to produce a first set of multiple medial and lateral pushing force combinations, acquiring a first set of multiple medial and lateral gap combinations correspondingly, and acquiring a first corresponding relationship data between the pushing force and a gap between the femur and the tibia;
• controlling the butting member and the push plate to apply different pushing forces between the distal medial and lateral condyles of the femur and the tibia at a second preset joint flexion angle to produce a second set of multiple medial and lateral pushing force combinations, acquiring a second set of multiple medial and lateral gap combinations correspondingly, and acquiring a second corresponding relationship data between the pushing force and a gap between the femur and the tibia;
• and
• visually exhibiting the corresponding relationship data.