Neuromuscular Evaluation With Single-Leg Squat Test at 6 Months After Anterior Cruciate Ligament Reconstruction Michael P. Hall,* MD, Ronald S. Paik,†|| MD, Anthony J. Ware,‡ DPT, Karen J. Mohr,§ PT, and Orr Limpisvasti,§ MD Investigation performed at Kerlan-Jobe Orthopaedic Clinic, Los Angeles, California, USA
Nearly half of patients demonstrated persistent neuromuscular deficits on SLST at 6 months, which is when many patients return to unrestricted activity. Those with poor performance were of a significantly older age, decreased hip abduction strength, decreased single-leg hop distance, and lower IKDC subjective scores.
The SLST can be used to identify neuromuscular risk factors for ACL rupture. Many patients at 6 months have persistent neuromuscular deficits on SLST. Caution should be used when using time alone to determine when patients can return to unrestricted activity.