Evidence map›Paper›PMID 29140128›Full record

Observational studyJournal of athletic training2017

Lower Extremity Musculoskeletal Injury Risk After Concussion Recovery in High School Athletes.

Robert C Lynall, Timothy C Mauntel, Ryan T Pohlig, Zachary Y Kerr, Thomas P Dompier, Eric E Hall, Thomas A Buckley

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Journal of athletic training, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

47 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Robert C LynallDepartment of Kinesiology, The University of Georgia, Athens.
Timothy C MauntelDepartment of Orthopaedics, Walter Reed National Military Medical Center, Bethesda, MD.
Ryan T PohligBiostatistics Core Facility, University of Delaware, Newark.
Zachary Y KerrDepartment of Exercise and Sport Science, University of North Carolina at Chapel Hill.
Thomas P DompierDatalys Center for Sports Injury Research and Prevention, Inc, Indianapolis, IN.
Eric E HallDepartment of Exercise Science, Elon University, NC.
Thomas A BuckleyDepartment of Kinesiology and Applied Physiology and Interdisciplinary Program in Biomechanics and Movement Science, University of Delaware, Newark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextAlthough an association between concussion and musculoskeletal injury has been described in collegiate and professional athletes, no researchers have investigated an association in younger athletes.

objectiveTo determine if concussion in high school athletes increased the risk for lower extremity musculoskeletal injury after return to activity.

designObservational cohort study.

settingOne hundred ninety-six high schools across 26 states. PATIENTS OR OTHER

participantsWe used data from the National Athletic Treatment, Injury and Outcomes Network surveillance system. Athletic trainers provided information about sport-related concussions and musculoskeletal injuries in athletes in 27 sports, along with missed activity time due to these injuries. MAIN OUTCOME MEASURE(S): Three general estimating equations were modeled to predict the odds of sustaining (1) any lower extremity injury, (2) a time-loss lower extremity injury, or (3) a non-time-loss lower extremity injury after concussion. Predictors were the total number of previous injuries, number of previous concussions, number of previous lower extremity injuries, number of previous upper extremity injuries, and sport contact classification.

resultsThe initial dataset contained data from 18 216 athletes (females = 39%, n = 6887) and 46 217 injuries. Lower extremity injuries accounted for most injuries (56.3%), and concussions for 4.3% of total injuries. For every previous concussion, the odds of sustaining a subsequent time-loss lower extremity injury increased 34% (odds ratio [OR] = 1.34; 95% confidence interval [CI] = 1.13, 1.60). The number of previous concussions had no effect on the odds of sustaining any subsequent lower extremity injury (OR = 0.97; 95% CI = 0.89, 1.05) or a non-time-loss injury (OR = 1.01; 95% CI = 0.92, 1.10).

conclusionsAmong high school athletes, concussion increased the odds of sustaining subsequent time-loss lower extremity injuries but not non-time-loss injuries. By definition, time-loss injuries may be considered more severe than non-time-loss injuries. The exact mechanism underlying the increased risk of lower extremity injury after concussion remains elusive and should be further explored in future research.

Indexed as

AthletesAdolescentAthletic InjuriesBrain ConcussionCohort StudiesFemaleFootballHumansLeg InjuriesMaleRisk FactorsSchoolsUnited Statesadolescentsdynamic balancefunctional movementmild traumatic brain injuries

Identifiers

PMID29140128
PMCPMC5737038

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.