Return to Play After Platelet-Rich Plasma Injection for Elbow UCL Injury: Outcomes Based on Injury Severity.

Background: Ulnar collateral ligament (UCL) injuries of the elbow are uncommon in the general population but prevalent in the athletic community, particularly among baseball players. Platelet-rich plasma (PRP) injection therapy has become a popular nonoperative adjuvant treatment for such injuries to help reduce recovery time and avoid surgery.

Purpose/hypothesis: To analyze patient outcomes by injury severity and identify injury types that responded most favorably and unfavorably to PRP treatment.

Epidemiology and aetiology of marathon running injuries.

Over the last 10-15 years, there has been a dramatic increase in popularity of running marathons. Numerous articles have reported on injuries to runners of all experience, with yearly incidence rates for injury reported to be as high as 90% in those training for marathons. To date, most of these studies have been cohort studies and retrospective surveys with remarkably few prospective studies.