• Jorge Chahla, Nicholas I Kennedy, Mark E Cinque, George Sanchez, Catherine Logan, Bryan G Vopat, Brendin Beaulieu-Jones, Mark Price, Jim Whalen, Robert F LaPrade, and Matthew T Provencher.
• Steadman Philippon Research Institute, Vail, Colorado, U.S.A.
• Arthroscopy. 2018 Mar 1; 34 (3): 687-692.

Purpose(1) To determine the epidemiology, examination findings, imaging findings, and associated injuries of posterolateral corner (PLC) injuries in players participating in the National Football League (NFL) Combine and (2) to evaluate the impact of PLC injuries on performance compared with matched controls.MethodsAll PLC injuries identified at the NFL Combine between 2009 and 2015 were reviewed. The inclusion criteria were any player who had clinical findings or a previous surgical procedure consistent with a PLC injury and who participated in medical and performance testing at the NFL Combine. PLC injuries were identified by evaluating the side-to-side difference in lateral-compartment laxity with varus stress and reviewing magnetic resonance imaging studies. NFL performance outcomes (draft position and number of games played or started within the first 2 years) were compared with matched controls.ResultsOf the 2,285 players assessed at the NFL Combine, 16 (0.7%) were identified with a history of a grade II or III PLC tear and surgical management whereas 7 additional players (0.3%) had a PLC injury diagnosed on clinical examination, for 23 total PLC injuries (1%). On examination, 13 of 22 knees (59%) were shown to be stable; however, most of those managed surgically had significantly improved stability (13 of 15 stable) versus none of those managed nonsurgically (0 of 7 stable). Surgically managed PLC-injured athletes started significantly fewer games than controls (5.3 vs 10.5, P = .03); the mean draft position for players with surgically treated PLC injuries was 139.7 versus controls' mean draft position of 111.3. Of the 16 athletes treated operatively, 2 reported a PLC injury recurrence; both were managed nonoperatively.ConclusionsA small percentage of players at the NFL Combine had evidence of a previous PLC injury (1%), with 0.4% having residual varus asymmetry on clinical examination. A worse overall mean draft position for isolated PLC-injured athletes versus controls was found: 132.8 versus 111.3 (P = .02). It is recommended that the use of varus stress radiographs be considered for NFL Combine athletes to objectively determine their grade of injury. LEVEL OF EVIDENCE: Level IV, retrospective case series.Copyright © 2017 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved.

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