Interpreting the Meta-analysis of Platelet-Rich Plasma Injections for the Treatment of Knee Osteoarthritis With Caution: Further Research Is Needed: Letter to the Editor. - Domenech, Julio; Peiró, Salvador; Catalá-López, Ferrán; Climent-Peris, Vicente; Llombart-Blanco, Rafael (American Journal of Sports Medicine, 2026)