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Patient-reported outcomes for studies that report on clinical outcomes after trochleoplasty. Shaded blocks represent statistically significant improvements in outcome. IKDC International Knee Documentation Committee, KOOS Knee Injury and Osteoarthritis Outcome Score, WOMAC Western Ontario and McMaster Universities Arthritis Index, QOL quality of life, NPI Norwich Patella Instability Score, VAS visual analogue scale, ADL activities of daily living
