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Efficacy and safety of single injection of cross-linked sodium hyaluronate vs. three injections of high molecular weight sodium hyaluronate for osteoarthritis of the knee: a double-blind, randomized, multi-center, non-inferiority study

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Authors
Ha, Chul-Won; Park, Yong-Beom; Choi, Chong-Hyuk; Kyung, Hee-Soo; Lee, Ju-Hong; Yoo, Jae Doo; Yoo, Ju-Hyung; Choi, Choong-Hyeok; Kim, Chang-Wan; Kim, Hee-Chun; Oh, Kwang-Jun; Bin, Seong-Il; Lee, Myung Chul
Issue Date
2017-05-26
Publisher
BioMed Central
Citation
BMC Musculoskeletal Disorders, 18(1):223
Keywords
Knee osteoarthritisInflammationTreatmentHyaluronic acid
Abstract
Background
This randomized, double-blind, multi-center, non-inferiority trial was conducted to assess the efficacy and safety of a cross-linked hyaluronate (XLHA, single injection form) compared with a linear high molecular hyaluronate (HMWHA, thrice injection form) in patients with symptomatic knee osteoarthritis.

Methods
Two hundred eighty seven patients with osteoarthritis (Kellgren-Lawrence grade I to III) were randomized to each group. Three weekly injections were given in both groups but two times of saline injections preceded XLHA injection to maintain double-blindness. Primary endpoint was the change of weight-bearing pain (WBP) at 12 weeks after the last injection. Secondary endpoints included Western Ontario and McMaster Universities Osteoarthritis index; patient’s and investigator’s global assessment; pain at rest, at night, or in motion; OMERACT-OARSI responder rate; proportion of patients achieving at least 20 mm or 40% decrease in WBP; and rate of rescue medicine use and its total consumption.

Results
Mean changes of WBP at 12 weeks after the last injection were −33.3 mm with XLHA and −29.2 mm with HMWHA, proving non-inferiority of XLHA to HMWHA as the lower bound of 95% CI (−1.9 mm, 10.1 mm) was well above the predefined margin (−10 mm). There were no significant between-group differences in all secondary endpoints. Injection site pain was the most common adverse event and no remarkable safety issue was identified.

Conclusions
This study demonstrated that a single injection of XLHA was non-inferior to three weekly injections of HMWHA in terms of WBP reduction, and supports XLHA as an effective and safe treatment for knee osteoarthritis.
Language
English
URI
https://doi.org/10.1186/s12891-017-1591-4

http://hdl.handle.net/10371/117655
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College of Medicine/School of Medicine (의과대학/대학원)Orthopedic Surgery (정형외과학전공)Journal Papers (저널논문_정형외과학전공)
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