Table 2

Overview of outcome measures per study

Study typeIntervention/comparisonOMERACT III set of outcome measures
PainFunctionGlobal assessmentJoint imaging
VAS/NRSWOMAC painWOMAC physical functionWOMAC totalLequesne indexPatient satisfactionScoring radiographs or demonstrably superior imaging techniques
PRP-HA√2, 3√2, 3√2, 3, 4, 5√2, 3, 5√6*
CCTsPRP-HA√7, 8√8√7,*9
  • 1, Patel et al;37 2, Sánchez et al;40 3, Vaquerizo et al;36 4, Cerza et al;39 5, Li et al;43 6, Filardo et al;38 ,44 8, Spaková et al;42 9, Kon et al;16 ,45 10, Filardo et al.23

  • *Outcome measure not applicable or not reported in the included study.

  • −, No primary or secondary outcome measure in included study; √, study on outcome measure; CCT, non-randomised controlled trial; HA, hyaluronic acid; NRS, numeric rating scale; PRGF, plasma rich in growth factors; PRP, platelet-rich plasma; RCT, randomised controlled trial; VAS, visual analogue scale; WOMAC, Western Ontario and McMaster Universities Osteoarthritis Index.