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Asphyxiating thoracic dysplasia (often called Jeune syndrome) is a rare genetic bone growth problem. It mainly affects the chest, ribs, spine, and the long bones of...
Asthenia is a symptom of a number of different conditions. The causes are many and can be divided into conditions that have true or perceived muscle weakness. True muscle...
An asymmetric bulged cervical intervertebral disc is when one of the fibrocartilaginous cushions between the bones of your neck sticks out more on one side than...
Asymmetric cervical annular tears are focal separations or fissures in the tough outer ring (annulus fibrosus) of the intervertebral discs in the neck (cervical spine). Unlike...
An asymmetric herniated cervical disc is a condition in which disc material bulges or protrudes on one side of the spinal canal rather than evenly around...
Asymmetric thecal sac indentation refers to a condition seen on spinal imaging—most often magnetic resonance imaging (MRI)—where the normally smooth, oval-shaped sac surrounding the spinal cord...
The atlanto-axial joint lies between the first cervical vertebra (atlas) and the second cervical vertebra (axis). An atlanto-axial dislocation occurs when the atlas shifts abnormally relative...
Atlanto-axial instability (AAI) refers to excessive movement between the first cervical vertebra (the atlas, C1) and the second cervical vertebra (the axis, C2). Under normal circumstances,...
An anterior dislocation of the atlanto-axial (C1–C2) joint occurs when the atlas (C1) shifts forward relative to the axis (C2), disrupting the normal alignment and risking...
The atlanto-axial joint is the articulation between the first cervical vertebra (atlas) and the second cervical vertebra (axis). In a lateral dislocation, the atlas shifts sideways...
Atlanto-axial rotatory dislocation (AARD) is a condition in which the first cervical vertebra (C1, also called the atlas) rotates abnormally against the second cervical vertebra (C2,...
Atlanto-axial vertical dislocation (also called atlanto-axial distraction injury) occurs when the first cervical vertebra (C1, the “atlas”) moves abnormally upward relative to the second cervical vertebra...
