期刊
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
卷 133, 期 1, 页码 87-93出版社
SPRINGER
DOI: 10.1007/s00402-012-1621-5
关键词
AMIC; Cartilage; Knee; Surgery; Lysholm score
Autologous Matrix-Induced Chondrogenesis (AMIC) is an innovative treatment for localized full-thickness cartilage defects combining the well-known microfracturing with collagen I/III scaffold. The purpose of this analysis was to evaluate the medium-term results of this enhanced microfracture technique for the treatment of chondral lesions of the knee. Patients treated with AMIC (Chondro-Gide(A (R)), Geistlich Pharma, Switzerland) were followed using the AMIC Registry, an internet-based tool to longitudinally track changes in function and symptoms by the Lysholm score and VAS. A series of 57 patients was enrolled. The average age of patients (19 females, 38 males) was 37.3 years (range 17-61 years). The mean defect size of the chondral lesions was 3.4 cm(2) (range 1.0-12.0 cm(2)). All defects were classified as grade III (n = 20) or IV (n = 37) according to the Outerbridge classification. Defects were localized at the medial (n = 32) or lateral (n = 6) condyle, at the trochlea (n = 4) and at the patella (n = 15). The follow-up period was 2 years. The majority of patients were satisfied with the postoperative outcome, reporting a significant decrease of pain (mean VAS preop = 7.0; 1 year postop = 2.7; 2 years postop = 2.0). Significant improvement of the mean Lysholm score was observed as early as 1 year after AMIC and further increased values were noted up to 2 years postoperatively (preop. 50.1, 1 year postop. 79.9, 2 year postop. 85.2). AMIC is an effective and safe method of treating symptomatic chondral defects of the knee. However, further studies with long-term follow-up are needed to determine if the grafted area will maintain structural and functional integrity over time. Prognostic study, Level IV.
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