Normal Anatomy The menisci are C-shaped disks of fibrocartilage located between the articular surfaces of the femoral condyles and the tibia. The peripheral margin of each meniscus is thick and convex and tapers to a thin margin at the free…
Prevalence, Epidemiology, and Definitions The imager's role in diagnosis and treatment of knee trauma is not only to accurately identify specific injuries, but also to recognize patterns of imaging findings that suggest that further investigation is warranted. It may be…
Imaging Techniques Technical Aspects Standard radiographs of the knee are performed as the first-line examination in knee disorders. Radiographs include anteroposterior and lateral views of the entire knee, as well as axial views of the patellofemoral joint ( eFig. 24-1…
Anatomy of the Hip Joint The hip is a ball-and-socket joint allowing a wide range of motion in all directions. Active movements (flexion, extension, adduction, abduction, circumduction, and medial and lateral rotations) are possible. The femoral head is nearly completely…
Radiologic Anatomy of the Proximal Femur A thorough knowledge of radiologic anatomy and anatomic variations of the proximal femur is required for interpreting hip studies. Although excellent descriptions of femoral anatomy are readily available in classic textbooks, volume-rendered multidetector computed…
Pelvic Anatomy in Relation to Pubalgia The pubic symphysis is a nonsynovial, amphiarthrodial joint formed by the confluence of the two pubic bodies with an intervening articular disk ( Fig. 21-1 ). The medial surface of the body forms the…
Fractures of the pelvic ring and acetabulum are a common consequence of high-speed collisions, usually related to motor vehicle accidents. They may also be caused by minor falls and occupational accidents. These injuries are associated with significant morbidity and mortality,…
Technical Aspects Techniques and Relevant Aspects Conventional Radiography Rationale and Indications For visualization of osseous anatomy and pathology, bone contours, and joint alignment. Recommended for any primary evaluation of suspected hip pathology, including fractures, dislocations, bone tumors, and infection. Gluteal,…
Hand and wrist pain and restricted movement are common disabling complaints that may be caused by a broad spectrum of soft tissue disorders. These injuries may be the result of a single incident, such as falling on an outstretched hand,…
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…