1. Comparative Effectiveness of Platelet-Rich Plasma Injections for Treating Knee Joint Cartilage Degenerative Pathology: A Systematic Review and Meta-Analysis 
Ke-Vin Chang, MD, Chen-Yu Hung, MD, Fanny Aliwarga, MD, Tyng-Guey Wang, MD, Der-Sheng Han, MD, PhD, Wen-Shiang Chen, MD, PhD 
Archives of Physical Medicine and Rehabilitation 
Volume 95, Issue 3, Pages (March 2014)
DOI: /j.apmr
Copyright © 2014 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1
Flow diagram of the evaluation process for the inclusion or exclusion of studies.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2014 American Congress of Rehabilitation Medicine Terms and Conditions

3. Fig 2
Forest plot of the ES of functional changes from baseline at (A) 2 months, (B) 6 months, and (C) 12 months after PRP injections. Abbreviation: ES, effect sizes.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2014 American Congress of Rehabilitation Medicine Terms and Conditions

4. Fig 3
Forest plot of the ES of functional changes from baseline after HA injections. Abbreviation: ES, effect sizes.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2014 American Congress of Rehabilitation Medicine Terms and Conditions

5. Fig 4
Temporal relationships of effect sizes of functional changes after PRP, HA, and placebo injections. We also analyzed the treatment arm only comprising RCT of PRP interventions. Abbreviation: RCT, randomized controlled trials.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2014 American Congress of Rehabilitation Medicine Terms and Conditions

6. Fig 5
Funnel plots of the effective size of functional changes from baseline at (A) 2 months, (B) 6 months, and (C) 12 months after PRP injections.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2014 American Congress of Rehabilitation Medicine Terms and Conditions