Isokinetic strength testing may predict return to sport after Latarjet surgery
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Key takeaways:
- Isokinetic strength testing may predict return to sport outcomes after Latarjet surgery.
- Strength testing was performed at 4 months postoperatively to predict return to sport at 6 months postoperatively.
According to results published in the American Journal of Sports Medicine, isokinetic strength testing may predict return to sport outcomes for athletes who undergo a Latarjet procedure for glenohumeral instability.
Mohamad K. Moussa, MD, MSc, orthopedic surgeon from the Clinique du Sport in Paris, and colleagues performed a cohort study of 72 athletes (mean age, 27.43 years) who underwent Latarjet stabilization between January 2022 and June 2023. Among the athletes, 31 played a contact-overhead sport, 27 played a contact sport and 14 played a noncontact sport.
All athletes underwent isokinetic strength testing at 4 months postoperatively. Secondary outcomes included the modified Closed Kinetic Chain Upper Extremity Stability Test, Walch-Duplay scores, WOSI scores and the Shoulder Instability – Return to Sports after Injury scale.
Return to sport outcomes were assessed at 6 months. Among all athletes, 17 did not return to sport, 28 returned to sport at a lower level and 27 returned to sport at the same level.
Moussa and colleagues found athletes who did not return to sport had decreased strength in concentric external rotation at 60° per second, concentric external rotation at 240° per second, concentric internal rotation at 240° per second and eccentric internal rotation at 30° per second compared with athletes who did return to sport. Specifically, they noted isokinetic testing in concentric external rotation at 240° per second and eccentric external rotation at 30° per second were significant predictors of return to sport outcomes.
Moussa and colleagues also found a positive correlation between Walch-Duplay scores, WOSI scores and improved strength recovery.
“For patients who do not meet the isokinetic strength thresholds, clinicians are advised to continue targeted rehabilitation,” Moussa and colleagues wrote. “We recommend scheduling repeat isokinetic testing at the 6-month mark to assess the patient’s progress and determine readiness for a safe return to sport.”
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