Weight-bearing MR Imaging of Knee, Ankle and Foot

Abstract

Clinical management of several pathologies of the lower extremity joint relies on instrumental imaging evaluation. The assessment of joint changes with physiologic load requires studies using positions with the patient standing. Weight-bearing radiographs are the mainstay for the evaluation of several conditions such as knee osteoarthritis, pes planus, and hallux valgus, in particular to obtain measurements of articular parameters, especially for presurgical studies. In the last few years, dedicated magnetic resonance imaging and computed tomography scanners have also been developed to obtain high-resolution, multiplanar, and sectional images of the lower extremity joints during weight-bearing. These techniques provide detailed information on joint structure modifications under load in both physiologic and pathologic conditions to improve the diagnostic accuracy of weight-bearing studies.

T2-mapping MRI evaluation of patellofemoral cartilage in patients submitted to intra-articular platelet-rich plasma (PRP) injections

“…The lack of early biomarkers elicits the development of valuable imaging methods [4]. Magnetic resonance imaging (MRI) is the modality of choice for diagnosing degenerative changes of knee toward OA, even if it can give limited information to detect early stages of OA and subtle changes in response to therapy [5][6][7][8][9][10][11].…”

Morphological classification and clinical significance of medial malleolus based on computed tomography three-dimensional reconstruction

“…Ankle is the weight-bearing joint closest to the ground and the most important weight-bearing joint in the body [25]. The stability of the ankle joint plays a very important role in daily exercise and life.…”

Musculoskeletal Interventional Radiology in the Pediatric Population: State of the Art

“…Musculoskeletal (MSK) diagnostic imaging and interventional radiology (IR) have improved both in the number of examinations and procedures and in the choice of therapeutic strategies. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] Especially in the study of the pediatric population and when repeat diagnostic examinations are necessary, such as in follow-up studies of tumors, attention must be paid to the choice of the correct diagnostic procedure without ignoring radioprotection. [17][18][19][20] The role of IR in the MSK field has grown significantly in the last few years.…”