Dynamic Postural Control Two Years Following Anterior Cruciate Ligament Reconstruction in a Female Collegiate Soccer Player

in International Journal of Athletic Therapy and Training
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Context:

ACL injury may cause a lack of knee joint proprioception and motor control due to knee joint instability. ACL reconstruction restores knee joint stability, yet dynamic postural control may still be affected while performing dynamic tasks.

Objective:

To examine the effects of ACL injury and reconstruction on dynamic postural control using the Star Excursion Balance Test (SEBT) and single leg hop (SLH).

Participant:

One Division I female athlete.

Main Outcome Measure:

The athlete’s dynamic postural control, both pre- and postreconstruction, was compared with preinjury data using the method of minimal detectable change using reach distances obtained from the SEBT and hop distances from the SLH.

Results:

ACL injury and reconstruction affected the anterior, posteromedial, and posterolateral reach distances of the SEBT. Despite restoration of joint stability, anterior reach distance in the SEBT did not return to preinjury levels 27 months after ACL reconstruction. SLH distances decreased following injury but returned to preinjury levels 27 months after ACL reconstruction.

Conclusion:

Dynamic postural control and performance during the SEBT and SLH were affected by ACL injury and for extended periods of time after ACL reconstruction. Quadriceps inhibition and muscle strength of the involved limb may affect dynamic postural control both after ACL injury and reconstruction while performing the SEBT. Compensatory mechanisms at the hip and ankle may aid in performance of the SLH after reconstruction. Using baseline measurements, where possible, may help researchers better understand the effects of ACL injury and reconstruction on dynamic postural control.

Michael A. Samaan completed his PhD research in the Department of Mechanical and Aerospace Engineering at Old Dominion University, Norfolk, VA, and is currently a postdoctoral scholar in the Musculoskeletal and Quantitative Imaging Group, Department of Radiology and Biomedical Imaging at the University of California-San Francisco, San Francisco, CA.

Eric K. Greska is an assistant professor in the Department of Health, Leisure and Exercise Science at the University of West Florida, Pensacola, FL.

Matthew C. Hoch is an assistant professor in the School of Physical Therapy and Athletic Training at Old Dominion University, Norfolk, VA.

Joshua T. Weinhandl is an assistant professor in the Department of Human Movement Sciences at Old Dominion University, Norfolk, VA.

Sebastian Y. Bawab is a professor in the Department of Mechanical and Aerospace Engineering at Old Dominion University, Norfolk, VA.

Stacie I. Ringleb is an associate professor in the Department of Mechanical and Aerospace Engineering at Old Dominion University, Norfolk, VA.