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KMID : 1123820090110010075
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Health & sports medicine
2009 Volume.11 No. 1 p.75 ~ p.83
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Posterior cruciate ligament injury mechanism and biomechanics
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Lim Bee-Oh
Choi In-Ae
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Abstract
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The objective of the study was to investigate posterior cru-ciate ligament injury mechanism and biomechanics. The re-ported incidence of PCL damage is between 3 and 44% of acute knee injuries. Motor vehicle accidents (45%) and ath-letic injuries (40%) are reported as the most common causes.Trauma records primarily from motor vehicle accidents in-dicate that 46% of PCL injuries are combined with ACL tears, 41% with posterolateral structure (PLS) damage while only 3% are isolated. In contrast athletic injuries normallyinvolve low loading rates resulting in isolated mid substance tears. Results were inconsistent for rotational stability but deficiency increases joint contact pressure and may result in articular damage. A loss of proprioception occurs but the ef-fect on strength and kinetics is inconclusive. There is a lack of evidence for compensatory muscle activity. Return to ac-tivity is possible for the majority of non-operatively treated grade I and II isolated injuries. Further research is required to establish the compensatory mechanisms stabilizing the posterior cruciate ligament deficient knee and to investigate the outcomes for non-operatively treated patients.
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KEYWORD
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posterior cruciate ligament, injury mechanism, biomechanics
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