• Yuanjun Teng, Jin Jiang, Shaolong Chen, Lianggong Zhao, Zhaohui Cui, Md Shahidur Khan, Wenjia Du, Xuren Gao, Jing Wang, and Yayi Xia.
• Orthopaedics Key Laboratory of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou University, No. 82 Cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, People's Republic of China, tengyj06@126.com.
• Knee Surg Sports Traumatol Arthrosc. 2014 Aug 1;22(8):1949-57.

PurposeA systematic review and meta-analysis based on randomized controlled trials (RCTs) were conducted to evaluate the efficiency and safety of periarticular multimodal drug injection in total knee arthroplasty (TKA).MethodsPeriarticular injection with the use of multimodal drugs is an efficient alternative for postoperative analgesia in TKA. A systematical electronic search was performed to identify the eligible RCTs in the databases of PubMed, Embase, Cochrane Central Register of Controlled Trials, Web of Science and the Chinese Biomedical Literature Database. Two independent reviewers completed data collection and assessment of methodological quality. The quality of evidence of outcomes was judged using GRADE criteria. Meta-analysis was performed for the outcomes of pain, straight leg raise, operating time, hospital stay and complications.ResultsTen RCTs including eight studies with 1,216 TKAs in 835 patients met the inclusion criteria. Periarticular injection with multimodal drugs in TKA was associated with short-term benefits in terms of pain relief, straight leg raise, narcotic consumption, and the rates of nausea, vomiting, rash and pruritus. There were no statistically significant differences in operating time, hospital stay, wound complications and deep vein thrombosis between both groups.ConclusionsThe current evidence suggests that periarticular multimodal drug injection in TKA provides short-term advantages in pain relief, straight leg raise and postoperative complications.

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