Medical

carpometacarpal joint of thumb

car·po·met·a·car·pal joint of thumb

[TA]
the saddle-shaped synovial articulation between the trapezium and the base of the first metacarpal bone.
Synonym(s): articulatio carpometacarpalis pollicis [TA]
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References in periodicals archive
Multisequence MRI study was conducted after 3plane axial localizer, coronal T1 weighted image, tSE revealed splitting of the pre-insertional portion of Extensor pollicis longus tendon which was seen just distal to the carpometacarpal joint of thumb. Each tendon has its own sheeth.
An Accessory Extensor Pollicis Longus Tendon: A Case Report of Rare Anatomical Variant/ Tendon Accesorio del Musculo Extensor Largo del Pulgar: Reporte de Caso de una Rara Variacion Anatomica
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