Percentage of patients in the denominator who obtained at least a 10% improvement in knee pain and/or function as measured by validated patient-reported outcome measures (PROMs) at 6 months post-op. Eligible validated knee patient reported outcome measures include: : International Knee Documental Committee (IKDC) Subjective Knee Form (Pedi-IKDC), Knee Injury and Osteoarthritis Outcome Score (KOOS), Single Assessment Numeric Evaluation (SANE) [1]