[A prospective randomized controlled trial on the short-term effectiveness of domestic robot-assisted total knee arthroplasty].

OBJECTIVE: To explore the short-term effectiveness of domestic robot-assisted total knee arthroplasty (RATKA) conducted by a prospective randomized controlled trial. METHODS: >0.05). The operation time and intraoperative blood loss of the two groups were recorded. Knee joint VAS resting and motion scores, ROM, KSS scores, and WOMAC pain, stiffness, and function scores were used to evaluate the knee joint function and pain. Gait analysis (flexion and extension angle) was conducted at 3 months after operation. The full length X-ray films of lower limbs and anteroposterior and lateral X-ray films of knee joint were taken. The HKA deviation, lateral tibia component (LTC), frontal femoral component (FFC), frontal tibia component (FTC), and lateral femoral component (LFC) measured on the X-ray films were used to evaluat the lower limb alignment and prosthesis position. RESULTS: =0.000), which was closer to the ideal value. CONCLUSION: YUANHUA-TKA system can improve the accuracy of osteotomy and the prosthesis placement as well as the lower limb alignment. Its short-term effectiveness can be promised, but long-term effectiveness needs to be further studied.