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Worse KOOS scores in patients with ACL tears, full-thickness cartilage lesions
In a recent study of 8,476 patients Norwegian researchers found worse Knee Injury and Osteoarthritis Outcome Scores 2 years after ACL reconstruction in patients with full-thickness cartilage lesions at the time of surgery.
They assessed all patients who underwent primary unilateral ACL reconstruction in the Norwegian and the Swedish National Knee Ligament Registry from 2005 to 2008 who completed the Knee Injury and Osteoarthritis Outcome Score (KOOS) knee-related quality of life subscale at 2 postoperative years. The investigators then analyzed and assessed correlations between each KOOS subscale, which included pain, other symptoms, activities of daily living, sports and recreation function, and knee-related quality of life. Among those studied 3,674 patients had meniscal lesions, 1,671 patients had partial-thickness cartilage lesions and 551 patients had full-thickness cartilage lesions based on International Cartilage Repair Society grades.
Those with meniscal or partial-thickness lesions showed no association between their lesions or tears and the KOOS subscale scores at the 2-year follow-up, but patients with full-thickness tears were positively associated with decreased KOOS scores.
Disclosure: Røtterud received funding for the research through a PhD grant from Akershus University Hospital and South-Eastern Norway Regional Health Authority.