A Positive Quadriceps Active Test, without the Quadriceps Being Active
Keyword(s):
Grade 3
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Case. A 55-year-old male with a chronic isolated grade 3 PCL injury who demonstrates a positive quadriceps active test without activating his quadriceps musculature. Conclusion. Gravity and hamstring contraction posteriorly translate the tibia into a subluxed position. Subsequent gastrocnemius contraction with the knee flexed causes an anterior tibial translation by virtue of the mass enlargement of the gastrocnemius muscular bulk, the string of a bow effect, and the anterior origin of the gastrocnemius in relation to the posterior border of the subluxed tibia aided by the normal posterior tibial slope.
2017 ◽
Vol 9
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pp. 39-40
2014 ◽
Vol 42
(4)
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pp. 927-933
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2021 ◽
Vol 49
(4)
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pp. 928-934
2019 ◽
Vol 47
(2)
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pp. 312-317
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Keyword(s):
2001 ◽
Vol 29
(6)
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pp. 771-776
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2019 ◽
Vol 47
(2)
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pp. 285-295
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2019 ◽
Vol 28
(6)
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pp. 1901-1908
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Keyword(s):
2010 ◽
Vol 39
(1)
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pp. 110-121
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Keyword(s):
2007 ◽
Vol 35
(9)
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pp. 1443-1449
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