Normal anatomy and magnetic resonance appearance of the knee.

This article discusses the normal magnetic resonance (MR) appearance, functional anatomy, and biomechanics of the knee joint. Technical considerations of MR imaging of the knee are covered first: coil selection, positioning, and pulse sequences. Useful sequences for both routine examinations and specific clinical situations are suggested. This is followed by a discussion of the biomechanics and functional anatomy of the knee. The typical MR appearance of various key structures in the knee is discussed. The final section of the article is an atlas of normal MR anatomy of the knee, covering the sagittal, coronal, and axial planes.