Between January 1981 and March 1985, the author examined and treated 13 skiers who suffered ACL rupture of their knees in a characteristic but previously undescribed fashion. Injury is caused by a combination of passive and active loads applied to the ACL. Ultimate failure of the ACL is produced by violent quadriceps contraction to recover from an out of control sitting- back posture or to gain control after landing a jump. The injury is exclusive to expert skiers and there is no binding release. Combined loading of the ACL in skiing is exceedingly dangerous.
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References
1.
Asang E.: Experimental biomechanics of the human leg: A basis for interpreting typical skiing injury mechanisms. Orthop Clin North Am7. 63-73, 1976
