The Scientific World Journal / 2012 / Article / Tab 3

Clinical Study

Oral Administration of Polymer Hyaluronic Acid Alleviates Symptoms of Knee Osteoarthritis: A Double-Blind, Placebo-Controlled Study over a 12-Month Period

Table 3

Kellgren and Lawrence grade before and 12 months after administration.

Time (month)

HAGrade 298
Grade 3910
PlaceboGrade 299
Grade 31111

Numbers of subjects being Kellgren and Lawrence grade are shown.

We are committed to sharing findings related to COVID-19 as quickly and safely as possible. Any author submitting a COVID-19 paper should notify us at to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVID-19. Sign up here as a reviewer to help fast-track new submissions.