CT scan of the knee: correlation with clinical and arthroscopic findings

CT was performed in a series of 150 consecutive clinically diagnosed meniscal lesions of the knee. Six to 12 contiguous slices, each 1 mm thick, were obtained starting from the tibial plateau and proceeding cranially to the intercondylar fossa. The medical imaging team was not informed of the medical history of the patients nor of the relevant clinical diagnosis. Arthroscopic findings were subsequently correlated with the CT findings. With the arthroscopic diagnosis defined as correct, a CT sensitivity rate of 80% was obtained. The specificity of the test was 93%. This study of 75 consecutive meniscal tears was designed to evaluate arthroscopic meniscal suturing using an inside-out technique.