The alterations in nerve growth factor concentration in plasma and synovial fluid before and after total knee arthroplasty

Author:

Onodera Tomohiro,Iwasaki Koji,Matsuoka Masatake,Morioka Yasuhide,Matsubara Shinji,Kondo Eiji,Iwasaki Norimasa

Abstract

AbstractTotal knee arthroplasty (TKA) is an effective procedure for pain relief; however, the emergence of postsurgical pain remains a concern. In this study, we investigated the production of nerve growth factor (NGF) and mediators that affect NGF production and their function in the synovial fluid and plasma after TKA. This study included 19 patients (20 knees) who had rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), and knee osteoarthritis (OA) who underwent TKA, categorized into OA and non-OA groups. The levels of NGF, inflammatory cytokines, and lipid mediators were analyzed before and after surgery. The intraoperative synovial fluid NGF concentration was more than seven times higher in the non-OA group than in the OA group. The intra-articular NGF levels increased significantly by more than threefold postoperatively in the OA group but not in the non-OA group. Moreover, the levels of inflammatory cytokines and lipid mediators were increased in the synovial fluid of both groups. The intra-articular cytokines or NGF concentrations positively correlated with postoperative pain. Targeted NGF control has the potential to alleviate postsurgical pain in TKA, especially in patients with OA, emphasizing the importance of understanding NGF dynamics under different knee conditions.

Funder

Japanese Orthopedic Association-Subsidized Science Project Research

Japan Society for the Promotion of Science

Japan Agency for Medical Research and Development

Publisher

Springer Science and Business Media LLC

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