Randomized Trialmoderate evidence
Comparative Efficacy of Leukocyte-Rich and Leukocyte-Poor PRP for Lateral Epicondylitis on Isokinetic and Isometric Upper Limb Strength under an Identical Rehabilitation Protocol: A Randomized Controlled Trial.
Journal of shoulder and elbow surgery·October 3, 2026·PMID 42829102
Why it mattersPRP is widely used for tendinopathy despite limited comparative evidence on formulation. This trial suggests that neither leukocyte-poor nor leukocyte-rich PRP offers clinically meaningful strength gains over saline when combined with structured rehabilitation, informing treatment selection and patient counseling.
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