Abstract
Autologous chondrocyte implantation (ACI) is associated with excellent long-term outcomes for isolated patellar chondral defects. A 24-year-old male with a history of road traffic accident 1 month back presented with locking of the knee. An MRI was done which revealed a full-thickness patellar cartilage defect measuring 1.5 × 2 cm with a loose body measuring the same size. Pre-operative planning and evaluation were done and the patient was posted for a two-stage ACI procedure. Staged post-operative rehabilitation protocol was followed. Annual outcome scale included the short form-36, modified Cincinnati activity score, and Knee Society Score and the patient reported excellent scores in all three outcomes scales at 2 years. Magnetic resonance imaging was done at 2 years for detailed analysis of the cartilage repair using Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) score. The patient’s MOCART score demonstrated complete fill of the defect, integration to the border, no hypertrophy, and no effusion.
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