Introduction The posteromedial corner of the knee (PMC) is a significant anatomic structure that is as important as the posterolateral corner in multiligamentous injuries. Even though it is easily seen on modern high-field magnetic resonance (MR) imaging systems, it is…
Numerous pharmacologic agents may adversely affect the musculoskeletal system. Radiographic manifestations of these pathologic effects may often be apparent in the advance of clinical symptomatology. Therefore, the radiologist may be the first physician to raise the possibility of a drug-related…
Lower Extremity Pelvis/Thigh Piriformis Syndrome Compression of the sciatic nerve by the piriformis muscle is noted in the pelvis. The L4, L5, S1, and S2 nerve roots give contributions to the sciatic nerve. As the nerve exits the greater sciatic…
Upper Extremity Shoulder Suprascapular Nerve Syndrome Impingement of the suprascapular nerve occurs at the scapular notch or spinoglenoid notch. The suprascapular nerve originates from the brachial plexus, and at the scapular notch it branches into the supraspinatus and infraspinatus nerves…
Prevalence, Epidemiology, and Definitions Musculotendinous Injury Traumatic injury to the musculotendinous units of the elbow may result from acute trauma or repetitive micro-trauma. Furthermore, acute trauma is frequently superimposed on tendinopathy or other chronic injuries. MRI can be highly valuable…
Imaging Modalities and Technical Aspects Conventional radiography of the shoulder ( Table 6-1 , Fig. 6-1 ) is recommended for any primary evaluation of suspected pathology, including fractures, dislocations, bone tumors, and infection. It is readily available, inexpensive, and uses…
Imaging Technique Magnetic resonance imaging (MRI) is commonly used to evaluate important structures of the knee not adequately depicted on radiographs or computed tomography (CT). Radiography is the first-line imaging modality performed for most suspected abnormalities of the knee in…