Does it matter which platelet-rich plasma we use?

P>Several commercial devices are available to the equine practitioner for preparation of platelet-rich plasma (PRP). PRP is a 'catch all' term for a multitude of platelet concentrates (PC) with different biological components and properties. Case reports often fail to cite the exact type of PC used. A critical analysis of the available evidence on the clinical significance of differences between platelet concentrates is presented in an attempt to determine if one commercially available product is superior to the others.