The lateral and medial approach in total arthroplasty for valgus knee: a meta-analysis of current literature.

Aim: To compare the lateral and medial approaches of total knee arthroplasty (TKA) in the valgus knee. Materials & methods: An electronic search from the PubMed, Embase, Web of Science and Cochrane library was performed according to 'TKA', 'valgus', 'knee' and 'approach'. Subsequently, manual search was conducted from the reference lists in the identified studies. Results: Four randomized controlled trials and five cohorts were included. Better knee society score and function was noticed in patients after lateral approach. Similar postoperative valgus deformity, operative time, blood loss, Western Ontario and McMaster Universities Osteoarthritis Index, range of motion, pain and total complications in both groups. Conclusion: Compared with the medial approach for TKA in valgus knee, current data shows superior results after TKA by the lateral approach.