Ulnar nerve dysfunction at the elbow after platelet-rich plasma treatment for partial ulnar collateral ligament injuries

Robert G Thompson; Kendall Bradley; Gary M Lourie

doi:10.1016/j.xrrt.2020.11.006

Ulnar nerve dysfunction at the elbow after platelet-rich plasma treatment for partial ulnar collateral ligament injuries

JSES Rev Rep Tech. 2020 Dec 15;1(1):41-44. doi: 10.1016/j.xrrt.2020.11.006. eCollection 2021 Feb.

Authors

Robert G Thompson¹, Kendall Bradley², Gary M Lourie^{1

3}

Affiliations

¹ Wellstar Atlanta Medical Center, Department of Orthopedic Surgery, Atlanta, GA, USA.
² Duke University, Department of Orthopedic Surgery, Durham, NC, USA.
³ The Hand & Upper Extremity Center of Georgia, Atlanta, GA, USA.

Abstract

Background: Platelet-rich plasma (PRP) has been used for the treatment of partial ulnar collateral ligament (UCL) tears of the elbow in throwing athletes. Very few studies have focused on the complication profile of PRP in this application.The purpose of this study was to discuss the complication of ulnar nerve fibrosis and resulting cubital tunnel syndrome after a PRP injection for a partial UCL injury.

Methods: A retrospective review of 3 high-level baseball players who underwent a PRP injection for treatment of their partial UCL injury was completed. All 3 were noted to have an asymptomatic subluxing ulnar nerve at time of presentation. Their postinjection course is discussed, and the complication of cubital tunnel syndrome highlighted.

Results: All 3 players developed cubital tunnel syndrome with significant fibrosis surrounding their ulnar nerve.

Conclusion: PRP injections for the treatment of partial UCL injuries of the elbow may place some patients at risk of developing postinjection cubital tunnel syndrome from increased fibrosis around the ulnar nerve. This complication may be more likely to develop in patients who present with a subluxing ulnar nerve.

Keywords: Baseball; Cubital tunnel; Platelet-rich plasma; Ulnar collateral ligament.