Jul 5, 2023 · The carpometacarpal (CMC) joints are articulations between the carpal bones (carpo-) and metacarpal bones (-metacarpal) of the hand. There are five CMC joints in total, out of which the carpometacarpal joint of thumb (trapeziometacarpal …

The carpometacarpal (CMC) joints are five joints in the wrist that articulate the distal row of carpal bones and the proximal bases of the five metacarpal bones.

To better understand the physiology of the thumb CMC joint and treat pathology, it is helpful to examine the biomechanics, hormonal influences, and available surgical treatment options, along with the evolutionary roots of the thumb; its form and function, its functional demands; and the role of supporting ligaments based on their location, stab...

The most important joint of the thumb is the CMC joint and its unique anatomy facilitates a broad range of motion and makes possible prehension, which consists of grasping, pinching and manipulation of objects. Isolated dislocation of this joint is …

Jan 17, 2025 · The carpometacarpal (CMC) joints are the articulations that connect the hand’s carpal (carpals) and metacarpal (metacarpals) bones. Five carpometacarpal joints are known to exist, with the thumb’s carpometacarpal joint—also referred to as the trapeziometacarpal joint—being the most specialized and flexible.

The carpometacarpal (CMC) of the thumb is a saddle joint that permits a wide range of motion and is largely responsible for the characteristic dexterity of human prehension. This joint, located at the very base of the thumb, is subject to large physical stresses throughout life.

Sep 2, 2010 · The CMC joint of the thumb is located at the junction point of the thumb and the wrist. Break down the words in the name, carpometacarpal, and you get carpo- (wrist) and metacarpal (hand bone). This joint is commonly affected by arthritis .

The Carpometacarpal Joint: Normal Anatomy. The CMC joints of the fingers consist of a complex row of articulations formed by numerous uneven facets on the distal aspect of the distal carpal row connecting with the articular surfaces of the base of the metacarpals. 13 The index metacarpal base articulates mainly through its V-shaped facet with ...

Mar 1, 2018 · This article describes the anatomy and biomechanics of the thumb CMC joint, which is also often referred as the thumb trapeziometacarpal joint. The complexity of its anatomy, function, kinesiology, and stability allows humans to obtain the unique prehensile ability of thumb opposition with stable pinch.

The carpometacarpal joints (CMC) are five joints in the wrist that articulate the distal row of carpal bones and the proximal bases of the fivemetacarpal bones. The CMC of the thumb or the first CMC, also known as the trapeziometacarpal joint (TMC), differs significantly from …