BACKGROUNDInternal derangement of knee means loss of normal knee function due to ligament or meniscal injuries. MRI is a routinely utilised noninvasive modality for evaluation of various knee disorders including internal derangement. MRI provides excellent soft tissue contrast and multiplanar images when compared to other musculoskeletal imaging modalities.The aim of the study is to study the demographic profile of patients presenting with internal derangement of knee, identify the various ligament and meniscal injuries causing internal derangement of knee and describe the MRI features of the ligament and meniscal injuries.

BACKGROUND Rotator cuff unit plays an important role in the normal functioning of the shoulder joint and any injury to these muscles will lead to potential clinical consequences. Hence, it is necessary to understand its anatomy, functioning and to identify any deviation from its normal pattern in imaging. For this, MRI of shoulder joint gives us the required information in detail without actually subjecting the patients to ionizing radiation.