Arthroscopic autologous chondrocyte implantation in the knee with an in situ crosslinking matrix: minimum 4-year clinical results of 15 cases and 1 histological evaluation
Abstract
To clinically evaluate an arthroscopic autologous chondrocyte implantation (ACI) technique with an in situ crosslinking matrix for the treatment of full thickness cartilage defects of the knee and to present histological results of a graft cartilage biopsy obtained after 1.5 years. Fifteen cases of arthroscopic autologous chondrocyte implantation in the knee performed between November 2011 and October 2012 were included in the study. Medical charts and operational reports were screened and the patients were contacted after 0.8 ± 0.3 years (0.4-1.3) and 4.3 ± 0.3 years (4.0-4.8) to asses subjective IKDC and re-operation. The Tegner activity scale was collected at the second follow-up time point. Subjective IKDC response rates were assessed at both follow-up time points. The first and second follow-up was completed by all 15 patients (100%). The subjective IKDC scores showed a significant improvement (pre-operative 44.5 ± 15.9, first follow-up 71.1 ± 15.9, p < 0.001, second follow-up 72.6 ± 17.3, p < 0.001). The overall response rate was 66.7% (n = 10) at follow-up one and two. There were no significant differences in pre-injury (4, range 1-9) and follow-up two (4, range 2-7) Tegner activity scales (p = n.s.). Two patients requir...Continue Reading
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Arthroscopic implantation of a three dimensional scaffold for autologous chondrocyte transplantation
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