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The Injury Report

with Sports Surgeon, Dr. Catherine Logan

September 7, 2020

Research Update…

Return to Sport Testing After MPFL Reconstruction in Adolescent Athletes
Source
AJSM, first published March 1, 2019

Clinical Question: What should we pay attention to particularly in RTS testing following MPFL reconstruction?

Bottom Line: For knee extension, there was a statistically significant difference between isometric peak torque measured in the surgical vs. nonsurgical limb (P=.001). There was NO significant difference in isometric strength testing, hop tests or YBT-LQ based on graft type or concomitant procedure (ex. a tibial tubercle osteotomy/TTO). 
Points to Consider: Mean age of patients was 14.9 years. Recon was performed with HS auto (60.7%) and concomitant TTO was performed in 35.7%. Testing occured at mean 7.4 mos post op. 

Takeaway: Adolescent athletes undergoing MPFL recon may need prolonged rehab > 8 mos to allow adequate recovery of muscle strength for safe RTS. There is a significant deficit in isometric quad strength in the surgical limb.

About the Author:
Catherine A. Logan, MD, MBA, MSPT is a sports medicine Orthopaedic Surgeon and writer. Based in Denver, CO, she is an attending at Colorado Sports Medicine & Orthopaedics at Rose Medical Center. Dr. Logan is the Head League Physician for Premier Lacrosse League (PLL) member of the team physician pool for the US Ski & Snowboard teams each year. Dr. Logan completed her Orthopaedic Surgery residency at the Harvard Combined Orthopaedic Residency Program and her Sports Medicine Fellowship training at the prestigious Steadman Philippon Research Institute/The Steadman Clinic in Vail, CO. Logan is also on the board of The Chill Foundation.

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