Abstract:Objective To explore the effect of arthroscopic minimally invasive treatment of tibial plateau fracture with anterior cruciate ligament (ACL) tibial avulsion fracture.Methods From July 2016 to July 2019, 18 patients with tibial plateau fracture complicated with ACL avulsion fracture were treated. Fracture reduction and proper internal fixation were performed in all these cases with arthroscopic assistance. Knee function assessment system (hospital for special surgery knee score) was used to assess knee function of the affected limb at 3, 6, and 12 months postoperatively.Results All these patients incisions were healed good after surgery. All these patients were followed up for 3 ~ 12 months, average 6 months. According to the HSS score, the excellent and good rate of the knee function after 12 months is excellent: 6 cases (33.3%), good: 10 cases (55.6%), middle: 2 case (11.1%).Conclusion Arthroscopic minimally invasive treatment of tibial plateau fracture combined with ACL avulsion fracture has a good effect on the recovery of knee joint function.