To evaluate the efficacy of different ways of cocktail analgesic mixture injection on total knee arthroplasty (TKA).
A total of 50 patients with knee osteoarthritis treated by TKA from July to September 2018 were randomly divided into two groups (
VAS for pain at rest of patients in the Group 1 was significantly less than that in the Group 2 at the 6th, 12th, and 24th h after surgery (all 
The anterior intra-articular cocktail analgesic mixture injection can strongly relieve the pain early after TKA, which can improve knee function and achieve painless rehabilitation in most patients, with safety.