- See:
Biomechanical Role:
- Discussion:
- ACL tears most often occur during football and basketball in younger patients, and
occur most often from skiing injuries in older patients;
- substantial anterior tibial shear forces that stress ACL are produced
from quadriceps contraction, esp in 0-30 deg of extension;
- typically, the ACL is torn in a noncontact deceleration situation that produces
a valgus twisting injury;
- this usually occurs when the athlete lands on the leg and quickly
pivots in the opposite direction.
- mechanisms reported as possibly able to disrupt ACL w/ minimal
injury to other structures are:
- hyperextension
- marked internal rotation of tibia on femur;
- pure deceleration;
