Fig 1.
Constructing a flowchart for the included studies according to PRISMA Steps.
Table 1.
Basic Characteristics of Included Studies.
Fig 2.
Risk of bias assessment.
Fig 3.
Risk of bias summary.
Fig 4.
Forest plot comparing VAS scores between PRP+HA and PRP groups at 1, 3, 6, and 12 months.
Fig 5.
Forest plot comparing WOMAC total scores between PRP+HA and PRP groups at 3, 6, and 12 months.
Fig 6.
Forest plot of subgroup analysis comparing WOMAC total scores between different injection methods at three months.
Fig 7.
Forest plot of subgroup analysis comparing WOMAC total scores between different injection methods at six months.
Fig 8.
Forest plot comparing Lequesne scores between PRP+HA and PRP groups.
Fig 9.
Forest plot of subgroup analysis comparing Lequesne scores between different injection methods at three months.
Fig 10.
Forest plot comparing Adverse Events between PRP+HA and PRP groups.
Fig 11.
A: VAS scores B: WOMAC total scores C: Lequesne scores D: Adverse Events.