Cartilage repair surgery prevents progression of knee degeneration.

Journal and index pages often block iframe embedding. This reader keeps the evidence details in Orthonotes and leaves the source page one click away.

Abstract

[Indexed for MEDLINE] 18. Eur J Radiol. 2009 Apr;70(1):155-64. doi: 10.1016/j.ejrad.2008.01.008. Epub 2008 Mar 4. Indirect MR-arthrography in osteochondral autograft and crushed bone graft with a collagen membrane--correlation with histology. Streitparth F(1), Schöttle P, Schell H, Lehmkuhl L, Madej T, Wieners G, Duda GN, Schröder RJ. Author information: (1)Klinik für Strahlenheilkunde, Charité, Campus Virchow-Klinikum, Humboldt-University, Berlin, Germany. florian.streitparth@charite.de OBJECTIVE: To analyze the spectrum of findings in indirect MR-arthrography following osteochondral autograft transfer system (OATS) and crushed bone graft using a magnetic resonance imaging (MRI) scoring and grading system in relation to histology as the standard of reference. MATERIALS AND METHODS: Iatrogenic lesions were set at ovine condylar facets (n=6/group), treated with OATS or crushed bone graft. 1.5 T MRI was performed 6 months after surgery using PD-weighted (w fat saturated (fs) fast spin echo (FSE), T1-w 2D, and 3D fs gradient echo (GE) sequences 30 min. after i.v. Gd-DTPA administration and passive joint exercise. The repair tissue was evaluated by two independent radiologists. The MR findings were compared to histology. RESULTS: In all cases, MRI and histologic grading correlated well and showed significant superior repair in OATS at 6 months (p