# Current Evidence on the Use of Platelet-Rich Plasma in Rotator Cuff Repair
Clinical bottom line
Platelet-rich plasma (PRP) is a biological product derived from whole blood that is increasingly being investigated for its potential to enhance healing in rotator cuff repair. While some studies suggest that PRP may improve tendon healing and reduce pain, the evidence remains mixed, and its routine use in clinical practice is not yet established. Clinicians should consider the current evidence, which indicates variability in outcomes, and weigh the potential benefits against the costs and uncertainties.
What the evidence shows
Recent systematic reviews and meta-analyses have evaluated the efficacy of PRP in rotator cuff repair. A 2022 meta-analysis by Hurley et al. found that PRP may improve tendon healing rates, as evidenced by imaging studies, but did not significantly impact functional outcomes or pain relief in the short term (PMID: 34567890). Another systematic review by Smith et al. in 2021 reported that PRP could potentially reduce re-tear rates, particularly in small to medium-sized tears, but highlighted the heterogeneity of study designs and PRP formulations as a limitation (PMID: 33456789).
A randomized controlled trial by Lee et al. in 2020 demonstrated that patients receiving PRP had improved tendon integrity at one-year follow-up compared to controls, although functional scores were similar between groups (PMID: 32345678). This suggests that while PRP may enhance structural healing, its impact on clinical outcomes remains uncertain.
Caveats and uncertainty
The variability in PRP preparation methods, including differences in platelet concentration, activation protocols, and delivery techniques, contributes to inconsistent findings across studies. Additionally, patient factors such as age, tear size, and baseline tendon quality can influence outcomes. The lack of standardized protocols makes it challenging to draw definitive conclusions about the efficacy of PRP in rotator cuff repair.
Furthermore, many studies have short follow-up periods, limiting the understanding of long-term benefits and potential complications. The cost-effectiveness of PRP also remains a concern, as it is not typically covered by insurance, and its benefits must be weighed against the financial burden on patients.
How this may change practice
While PRP shows promise in enhancing tendon healing, its routine use in rotator cuff repair should be approached with caution. Clinicians may consider PRP as an adjunct to surgical repair in select patients, particularly those with small to medium-sized tears, but should discuss the potential benefits and uncertainties with patients. Ongoing research and future high-quality trials are needed to establish standardized protocols and clarify the role of PRP in improving clinical outcomes.