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. The CMC joint of the thumb or the first CMC joint, also known as the trapeziometacarpal (TMC) joint , differs significantly from the other four CMC joints and is therefore described ...

2023年12月14日 · The CMC joint is a saddle-shaped joint that connects the bones of your thumb to your wrist. It’s also the joint that allows your thumb to twist, pinch, and rotate. The mobility of the CMC...

2023年7月5日 · These aspects make the medial four CMC joints extremely stable to establish a strong connection between the wrist and hand, yet sufficiently flexible to permit palm cupping or object grasping during opposition movements with the thumb. This article will discuss the anatomy and functions of the carpometacarpal joints.

But dexterity comes at a price – an increased risk of osteoarthritis (OA) in the first carpometacarpal (CMC) joint, where the thumb meets the trapezium bone in the wrist. Sometimes the joint becomes so damaged that surgery is necessary.

Carpometacarpal (CMC) joint arthritis affects the thumb and hand, causing pain, discomfort, and difficulty with routine tasks. Understanding joint arthritis can help you identify signs and symptoms of this condition in yourself and others you may care for.

2024年1月21日 · Osteoarthritis of the TMC, the most important joint connecting the wrist to the metacarpus, is a severely disabling condition that is up to twenty times more common in elderly women than in the general population. The first metacarpal’s pronation-supination is especially important for opposition action.

2019年7月18日 · One of the joints within the thumb is known as the carpometacarpal joint. Located at the juncture of the thumb and wrist, this small but mighty joint allows movement of the hand and wrist. Without the proper function of this joint, numerous everyday tasks would be difficult – but carpometacarpal joint injuries are often overlooked.

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 …

2021年2月16日 · Gross anatomy Articulations. The carpometacarpal joints are made up of a number of bony articulations 1.. first carpometacarpal: distinct synovial curved saddle joint situated between the trapezium proximally and the first metacarpal (of the thumb) distally The second to fifth carpometacarpal joints are synovial joints which commonly communicate with the intercarpal joints and the ...

2023年5月23日 · Carpometacarpal osteoarthritis is also known as osteoarthritis of the thumb or CMC joint arthritis. Symptoms can include pain and swelling. Treatment typically includes...