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• Concussion and its diagnosis, prevention, and treatment remain a challenge for National Football League (NFL) players
• The NFL has focused on concussions as of late
The elite NFL athlete is unique • 40% of retired NFL players have
signs of CTE based on sensitive MRI scans
• Knowing the short-term effects of concussion are just as important as the long-term effects
INTRODUCTION
• Establish the short-term outcomes among concussed NFL players in terms of:
(1) Franchise release rate (2) Career length (3) Mean salary (4) Performance
OBJECTIVES
METHODS
• Of the total 5,587 NFL players over the 11-year period from 2005-2016, 307 players noted as sustaining publicly reported concussions resulting in DNP injury protocol.
• Annual release rate of the post-concussive versus non-concussive players: 33.6% vs. 21.6%, (p<0.001)
• Mean year-over-year change in contract value for concussed players after DNP protocol activation Reduction of $300,000/year ± $1,300,000/year.
• Likelihood of a concussed player remaining in the NFL after 3yrs: 30.1% vs 54.2% (p<0.001)
• Likelihood of a concussed player remaining in the NFL after 5yrs was 11.6% vs 36.6% (p<0.001)
• Fantasy scoring: pre-concussion average of 7.1± 14.2 FFP/game vs post-concussion 6.4 ± 10.4 FFP/game (p=0.047).
RESULTS
CONCLUSION • Our retrospective study is the largest
evaluating NFL concussions • Concussed NFL players were
released by non-concussed players within the year of sustaining a concussion at a higher rate
• Concussed players had a 70% chance of not remaining in the league 3 years later
• Concussed players had a 88% chance of not remaining in the league at 5 years
• Released players suffered reduction in year-over-year accumulated earnings of $300,000 per year the player remained in the league
• Concussed players performed worse on the field prior to their injury
• Performance decreases were greatest for tight ends, running backs, wide receivers, and quarterbacks after concussion.
DATA REFERENCES 1. Profootballreference.com 2. Nfl.com 3. Spotrac.com 4. Fantasydata.com 5. Prosportstransactions.com
Prem N. Ramkumar MD MBA1 , Sergio M. Navarro BS2 1Cleveland Clinic, Dept of Orthopaedic Surgery , 2Baylor College of Medicine, Dept of Orthopaedic Surgery
Short-Term Outcomes Following Concussion in the NFL: An 11-year Case-Control Study of Player Release Rate and Financial Loss
-2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5
0-1yrs
1-2yrs
2-3yrs
3-4yrs
4-5yrs
5-7yrs
7-10yrs
10yrs+
Salary Change ($mm/yr)
Car
eer L
engt
h
Survival curves comparing career length of concussive vs. non-concussive players Post-concussion salary change
based on career length
Release rate data for all players studied over
11-year period
2002Dr.Omaluautopsyof
MikeWebster
2005Pellmanetalreport50%ofconcussedplayershadsame-game
RTP 2009NFLinsEtutes
policystopping
same-gameRTP
2011NFLinsEtutes
sidelineconcussionassessmentprotocol
2013NFLaddstoconcussionprotocoland
recruitssideline
neurologistsand
establishesbaseline
tesEngwithpreseasoneducaEon
2016NFLinsEtutes
financialpenaltyonfranchises
noncompliantwith
concussionprotocols
2017Rulechangestothegametoincreaseplayersafety
RetrospecEveStudyDesignofNFLPlayers(2005-2016)
Case-control:Concussedvs.Non-
concussed
FranchiseReleaseRate Careerlength
ObservaEonal:Pre-concussionvsPost-Concussion
Salary Performance