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Published on: November 9, 2018
The relationship between grading and instrumented measurements of anterior knee joint laxity
Wendy L Hurley1, Craig Denegar, William E Buckley
1Kinesiology Department, SUNY, Cortland, USA. hurleyw@em.cortland.edu
Context:
The relationship between clinical judgments of anterior knee laxity and instrumented measurement of anterior tibial translation is unclear.
Objective:
To examine the relationship between certified athletic trainers'grading of anterior knee laxity and instrumented measurements of anterior tibial translation.
Design:
Randomized, blinded, clinical assessment.
Setting:
Laboratory.
Participants:
Model patients receiving evaluation of anterior knee laxity.
Intervention:
Twelve model patients were evaluated using a MEDmetric KT1000 knee ligament Arthrometer to establish instrumented measurements of anterior translation values at the tibio-femoral joint. Twenty-two certified athletic trainers were provided with operational definitions of potential laxity grades and examined the model patients to make judgments of anterior knee laxity.
Main Outcome Measures:
Correlation between clinical judgments and instrumented measurements of anterior tibial translation.
Results:
Clinical judgments and instrumented measurements were mutually independent.
Conclusions:
Anterior tibial translation grading by certified athletic trainers should be interpreted with caution during clinical decision-making.
