RESUMENPropósito: evaluar los resultados clínicos y por imagen (mapeo T2) del implante artroscópico de condrocitos autólogos en matriz encapsulada (ICAME) en lesiones condrales en patela a un seguimiento de 4 años. Métodos: se incluyeron 16 pacientes de 18 a 55 años de edad (promedio 34,37 ± 2,59) con lesión(es) condral(es) focalizadas en patela. Se les realizó el ICAME mediante artroscopia y en algunos casos se adicionó alguna de las técnicas de realineación o descompresión patelofemoral. El seguimiento clínico se evaluó mediante escalas de rodilla y la calidad del tejido de reparación se cuantificó por mapeo T2 comparándose con una zona de cartílago sano adyacente. Resultados: el tiempo de relajación del tejido de reparación (ROI-6, 54,81 ± 7,07) fue significativamente mayor al del cartílago control (ROI-3, 35,44 ± 5,51) a los 3 meses de postoperados (p < 0,001). A los 18 meses dichos valores disminuyeron sin observarse diferencia significativa entre el control (34,42 ± 3,66) y la zona de reparación (38,80 ± 6,71) (p = 0,0863) manteniéndose estable hasta ABSTRACT A new arthroscopic technique of matrix-encapsulated autologous chondrocyte implantation (MEACI) in patella: clinical and T2 mapping evaluation at 4 years of follow-up Purpose: to evaluate clinical and imaging (T2 mapping) outcomes of the arthroscopic technique of matrix-encapsulated autologous chondrocytes implantation (MEACI) in chondral lesions in patella at a follow-up of 4 years. Methods: we included 16 patients aged 18 to 55 years old (average 34.37 ± 2.59) with chondral lesion(s) localized in the patella. They underwent the arthroscopic technique of MEACI and in some cases techniques of patellofemoral realignment or decompression. Clinical follow-up was assessed using knee scores and repair tissue quality was quantified by T2-Mapping and comparing to an adjacent zone of native cartilage. Results: repair tissue relaxation time (ROI-6, 54.81 ± 7.07) was significantly higher than that of the control cartilage (ROI-3, 35.44 ± 5.51) at 3 months postoperatively (p < 0.001). At 18 months, these values decreased without a significant dif- OriginalesUna nueva técnica artroscópica de implante de condrocitos autólogos en matriz encapsulada (ICAME) en patela: evaluación clínica y por mapeo T2 a 4 años de seguimiento
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