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Can combined use of low-level lasers and hyaluronic acid injections prolong the longevity of degenerative knee joints?

Authors Ip D, Fu NY

Received 19 April 2015

Accepted for publication 2 June 2015

Published 5 August 2015 Volume 2015:10 Pages 1255—1258

DOI https://doi.org/10.2147/CIA.S86907

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Professor Zhi-Ying Wu

David Ip, Nga Yue Fu

Asia Medical Pain Centre, Grand Plaza, Mong Kok, Hong Kong

Background: This study evaluated whether half-yearly hyaluronic acid injection together with low-level laser therapy in addition to standard conventional physical therapy can successfully postpone the need for joint replacement surgery in elderly patients with bilateral symptomatic tricompartmental knee arthritis.
Methods: In this prospective, double-blind, placebo-controlled study, 70 consecutive unselected elderly patients with bilateral tricompartmental knee arthritis were assigned at random to either one of two conservative treatment protocols to either one of the painful knees. Protocol A consisted of conventional physical therapy plus a sham light source plus saline injection, and protocol B consisted of protocol A with addition of half-yearly hyaluronic acid injection as well as low-level laser treatment instead of using saline and a sham light source. Treatment failure was defined as breakthrough pain necessitating joint replacement.
Results: Among the 140 painful knees treated with either protocol A or protocol B, only one of the 70 painful knees treated by protocol B required joint replacement, whereas 15 of the 70 painful knees treated by protocol A needed joint replacement surgery (P<0.05).
Conclusion: We conclude that half-yearly hyaluronic acid injections together with low-level laser therapy should be incorporated into the standard conservative treatment protocol for symptomatic knee arthritis, because it may prolong the longevity of the knee joint without the need for joint replacement.

Keywords: knee osteoarthritis, hyaluronic acid injection, low-level laser, outcome

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