Background:The effect of microfracture (MF) or surgical debridement of concomitant
full-thickness cartilage lesions in anterior cruciate ligament–reconstructed
knees on patient-reported outcomes remains to be determined.Purpose:To evaluate the effect of debridement or MF compared with no surgical
treatment of concomitant full-thickness cartilage lesions on
patient-reported outcomes 5 years after anterior cruciate ligament
reconstruction (ACLR).Study Design:Cohort study; Level of evidence, 2.Methods:Included in this study were 644 patients who were registered in the Norwegian
and the Swedish National Knee Ligament Registries from 2005 to 2008 as
having undergone unilateral primary ACLR and having a concomitant
full-thickness cartilage lesion (International Cartilage Repair Society
[ICRS] grades 3-4). Of these patients, 129 were treated with debridement,
164 were treated with MF, and 351 received no surgical treatment
simultaneously with ACLR. At 5-year follow-up, 368 (57%) patients completed
results on the Knee injury and Osteoarthritis Outcome Score (KOOS).
Multivariable linear regression was used to estimate the effect of surgical
debridement or MF of concomitant full-thickness cartilage lesions on
patient-reported outcomes 5 years after ACLR.Results:Compared with no surgical treatment, there were no unadjusted or adjusted
effects of debridement or MF of concomitant full-thickness cartilage lesions
on KOOS scores at 5-year follow-up.Conclusion:Compared with leaving concomitant full-thickness cartilage lesions untreated
at the time of ACLR, debridement and MF showed no effect on patient-reported
outcomes 5 years after surgery.