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The extent of damage to the LCL can be assessed by comparison of the test results
with those of the normal, opposite LCL or pre-injury, same LCL. Because of the
absence of bulky soft tissue on the medial aspect of the knee, the force-strain
relationship is determined, in the first place, by the integrity of the LCL and only
secondarily by the elastic compression of the soft tissues nearest the counterbearings
and their rubber coverings. The initial slope, therefore, represents the tensile properties
of the LCL. This slope is reduced for partial tears proportional to the percentage tear.
For complete tears, the line no longer goes through the origin, but is displaced to the far
right of the screen. Slack in the LCL can be quantified from the point of intersection of
the line with the x-axis, but considerable slack may be difficult to distinguish from
complete tear.
LigMaster™ User’s Manual - Sport Tech Inc.
Page 37