Intratendon delivery of leukocyte-rich platelet-rich plasma at early stage promotes tendon repair in a rabbit Achilles tendinopathy model.

Tendinopathy is a great obstacle in clinical practice due to its poor regenerative capacity. The influence of different stages of tendinopathy on effects of leukocyte-rich platelet-rich plasma (Lr-PRP) has not been elucidated. The aim of this study is to investigate the optimal time point for delivery of Lr-PRP on tendinopathy.