title: Knee osteochondral autologous transplantation: long-term MR findings and clinical correlations.
abstract: We evaluated long-term magnetic resonance imaging (MRI) features of Knee Osteochondral Autologous Transplantation (OAT)-Mosaicplasty and correlated MRI findings and clinical outcome. Twenty-four patients (mean age 29.9±8.7, 70.8% male) undergoing arthroscopic OAT between 1997 and 2000 were prospectively enrolled. The International Cartilage Repair Society (ICRS)/International Knee Documentation Committee (IKDC) scores and Tegner scores were employed for clinical evaluation. The magnetic resonance observation of cartilage repair tissue (MOCART) was utilized for description and assessment of the repair tissue. Median follow up was 113 months (interquartile range [IQR] 106-122). MRI showed good survival of grafted cartilage in 62.5% of patients. The integration of the graft was complete in 75% of cases, while the repaired tissue was intact in 62.5% and had an homogeneous structure in 70.8%. The MOCART score significantly correlated with objective and subjective scores (p=0.003 and p=0.002). Contrastingly, overall MOCART showed no correlation with the Tegner score. MRI revealed to be a powerful tool for non-invasive long-term assessment of OAT.
authors.affiliation: Radiology, Rizzoli Orthopedic Institute, Bologna, Italy. cecilia.tetta@ior.it
authors.forename: Cecilia
authors.initials: C
authors.lastname: Tetta
authors.forename: Maurizio
authors.initials: M
authors.lastname: Busacca
authors.forename: Antonio
authors.initials: A
authors.lastname: Moio
authors.forename: Raffaella
authors.initials: R
authors.lastname: Rinaldi
authors.forename: Marco
authors.initials: M
authors.lastname: Delcogliano
authors.forename: Elizaveta
authors.initials: E
authors.lastname: Kon
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Filardo
authors.forename: Maurilio
authors.initials: M
authors.lastname: Marcacci
authors.forename: Ugo
authors.initials: U
authors.lastname: Albisinni
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001182:Arthroscopy; D002356:Cartilage / Q000637:transplantation*; D002358:Cartilage, Articular / Q000293:injuries*; D016009:Chi-Square Distribution; D005260:Female; D006085:Graft Survival; D006801:Humans; D007718:Knee Injuries / Q000601:surgery*; D007719:Knee Joint / Q000601:surgery*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D018709:Statistics, Nonparametric; D014182:Transplantation, Autologous