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Assessment Of Landing Biomechanics And Rehabilitation After Anterior Cruciate Ligament Reconstruction, Sheila S. Gagnon

Electronic Thesis and Dissertation Repository

Aberrant landing biomechanics increase the risk of anterior cruciate ligament (ACL) injury and are a focus of rehabilitation after ACL reconstruction. The purpose of the present thesis was to develop and evaluate methods of assessing landing mechanics and investigate the effects of different rehabilitation strategies after ACL reconstruction. Three studies were conducted. The first study used a Delphi process to develop the content of a Clinician-Rated Drop Vertical Jump Scale to evaluate jump landing mechanics during rehabilitation after ACL reconstruction. Twenty experts participated in four rounds of questioning, resulting in 92% agreement for knee valgus collapse, lateral trunk lean, insufficient …

Drop Vertical Jump Landing Mechanics Following Anterior Cruciate Ligament Reconstruction With And Without Lateral Extra-Articular Tenodesis, Michal Daniluk

Electronic Thesis and Dissertation Repository

The use of combined anterior cruciate ligament (ACL) plus lateral extra-articular tenodesis (LET) reconstruction has shown promising results during clinical testing, however, no studies have examined its effectiveness during a dynamic functional task. We used the drop vertical jump (DVJ) to compare in vivo biomechanics of ACL reconstructed patients with and without LET.

Our primary outcome was peak knee abduction moment during stance phase. Secondary kinetic and kinematic outcomes included peak initial contact and stance values for knee abduction angle, knee flexion moment and angle, knee internal rotation moment and angle, and vertical ground reaction force. We also assessed fear …