Items tagged “musculoskeletal”
69 results found
Published 21 Jan 2017
Sliver sign (patella)
The sliver sign refers to a curvilinear intra-articular osteochondral fragment in the knee joint on conventional knee radiographs. In the context of acute knee trauma and in association with joint effusion this sign is highly predictive of a recent transient lateral patellar dislocation 1. Path...
A cyma line refers to the union of two curved lines in architecture. In a radiological context it refers to the smooth joining of the midtarsal joint lines of the talonavicular and calcaneocuboid joints on both AP and lateral views. A disruption of the cyma line can indicate true shortening of ...
Bilateral femoral head avascular necrosis
Diagnosis almost certain
Published 26 Jul 2017
The extrusion index is a radiographic measurement of femoral head bony coverage by the acetabulum. It is useful in assessing for developmental dysplasia as well as femoroacetabular impingement. It is calculated by dividing the horizontal distance of the lateral femoral head that is uncovered by...
Lateral center-edge angle
The lateral center-edge angle is a radiographic measurement of femoral head bony coverage by the acetabulum. It has primarily been described in assessing for acetabular dysplasia but can also be used in femoroacetabular impingement. It is calculated on AP pelvic radiographs by using drawing a b...
Bilateral proximal radioulnar synostosis
Published 15 Oct 2018
Shoulder injury related to vaccine administration
Shoulder injury related to vaccine administration (SIRVA) describes the injury that occurs when there is an unintentional injection of antigenic material in the synovial tissues resulting in an inflammatory reaction. Clinical presentation After a vaccine administration, mostly on the first day...
Published 18 Feb 2019