Abstract: Objective　To analyze the efficacy and prognosis of arthroscopy-assisted minimally invasive percutaneous plate osteosynthesis (MIPPO) technology in the treatment of elderly Schatzker type II-III tibial plateau fractures. Methods　Forty-three patients with Schatzker type II-III tibial plateau fracture in our hospital were divided into an observation group (arthroscopy-assisted MIPPO technique, 19 cases) and a control group (traditional incision and reduction and internal fixation, 24 cases) according to the surgical method. The short-term effects after operation, short-term complications, and long-term quality of life in two groups were compared.　Results　Compared with the control group,  the incision length, length of hospital stay, and bone healing time of the observation group were much shorter, the intraoperative blood loss and postoperative drainage volume significantly reduced (all P<0.05).  The rates of incision infection, skin necrosis, delayed healing, joint stiffness, and traumatic arthritis of the observation group were much lower than those of the control group (all P<0.05). The Rasmussen function and radiological scores of the observation group were much higher than those of the control group (all P<0.05). The scores of the two groups of patients after treatment were significantly higher than those before the treatment (both P<0.05).　Conclusions　Arthroscopy-assisted MIPPO technique for the treatment of elderly Schatzker type II-III tibial plateau fractures effectively reduces trauma and near-term complications, significantly accelerates recovery, and significantly improves quality of life.

Key words: Tibial plateau fracture, 　Minimally invasive percutaneous plate osteosynthesis, 　Arthroscopy, 　MIPPO technique, 　Prognosis