ACL Tear Risk…Is it Predictable?
The vertical drop jump (VDJ) test is widely used for clinical assessment of ACL injury risk.
Based on landing mechanics and control of the trunk and lower limb, it is proposed risk of ACL rupture can be identified.
However, whether such assessments are valid is unclear.
Mørtvedt et al (2019), examined if various sports medicine professionals and coaches were able to identify ACL injury risk in players, by visually assessing a VDJ test.
102 video clips of elite female handball and football players performing a VDJ test were randomly selected from 738 recorded VDJ tests.
20 out of 102 went on to suffer an ACL injury. .
Sports medicine professionals and coaches were invited to rate each clip with a risk-level of ACL tear between 1 and 10
237 assessors completed the survey. .
Accuracy ranged from 36-60%
Average was 47%, which is similar to random guessing. .
No signifiant differences in classification between professionals:
Certified Athletic Trainers
There was poor predictive ability (no better than chance).
Visual assessment of a VDJ test, alone, is a poor test for assessing ACL injury risk in elite female handball and football players.
Is there a battery of tests which could have better predicted ACL Injury?
Thoughts? Questions? Comments?
Write them below. .
Mørtvedt, et al. 2019. BJSM. 2019 Oct 14. doi: 10.1136/bjsports-2019-100602