Document Type

Biomechanics and bioengineering paper

Publication details

Setunge, R, Perraton, L, Pivonka, P, Bryant, A, Mokhtarzadeh, H 2014, 'A biomechanical assessment of ACL injury reconstructions to examine internal tibial rotation', in ST Smith (ed.), 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), vol. II, Byron Bay, NSW, 9-12 December, Southern Cross University, Lismore, NSW, pp. 869-874. ISBN: 9780994152008.

Peer Reviewed



The Anterior Cruciate Ligament injury in the human knee joint has long been a debilitating injury, particularly amongst professional athletes, often requiring a reconstruction and an extensive rehabilitation period. Surgeons commonly use the single bundle reconstructions to replicate the biomechanical restraint and stability the ligament structure provides to the knee joint against anterior translation and excessive internal rotation of the tibia with respect to the femur. However after follow up of these patients during high demanding tasks, such as single legged landing there is still presentation of increased internal rotation at the knee and osteoarthritis 5-10 years following surgery. This suggests this surgical technique may not restore all the biomechanical support the natural ACL provides to the knee joint. The work presented here covers musculoskeletal computational modeling utilizing inverse kinematics predictions of knee rotation to calculate the internal rotation of the tibia. Using the model, gait analysis of ACL reconstructed subjects is compared with control healthy subjects to understand whether Internal Tibial Rotation (ITR) is fully restored in ACL single bundle reconstructions during a dynamic hop movement.