Clinical outcome and T2 assessment following autologous matrix-induced chondrogenesis in osteochondral lesions of the talus

International Orthopaedics
Eva Johanna KuboschPhilipp Niemeyer

Abstract

Scientific evidence for the treatment of osteochondral lesions (OCLs) of the talus is limited. The aim of this study was an evaluation of the clinical outcome after a one-step autologous subchondral cancellous bone graft and autologous matrix-induced chondrogenesis (AMIC) in medial OCLs of the talus and the assessment of the repair tissue (RT). Seventeen patients (eight women, nine men; mean age, 38.8 ± 15.7 years) with an OCL of the medial talus underwent surgery. Clinical and radiological assessment was performed after a mean follow-up of 39.5 ± 18.4 months, including established scoring systems (American Orthopaedic Foot and Ankle Society [AOFAS] Score, Foot Function Index [FFI], visual analogue scale [VAS]), evaluation of Magnetic Resonance Observation of Cartilage Repair Tissue scoring system (MOCART Score) and T2 mapping. Preoperative pain (7.8 ± 2.1) significantly improved to an average of 3.2 ± 2.4 postoperatively. AOFAS Score averaged 82.6 ± 13.4, MOCART Score 52.7 ± 15.9. Mean T2 relaxation time of the RT was 41.6 ± 6.3 ms and showed no significant differences to the surrounding cartilage (mean, 38.8 ± 8.5; p = 0.58). MOCART Score significantly correlated with the AOFAS Score (rho = 0.574, p = 0.040). T2 relaxation ti...Continue Reading

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