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.

2023年7月5日 · 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 …

2023年12月14日 · What is carpometacarpal arthritis? The carpometacarpal (CMC) joint is found at the base of your thumb. You may also see it referred to as the basal joint of the thumb. The CMC joint...

2022年6月16日 · Thumb arthritis is common with aging and occurs when cartilage wears away from the ends of the bones that form the joint at the base of your thumb — also known as the carpometacarpal (CMC) joint.

The base of the thumb where it meets the hand is called the carpometacarpal (CMC) joint. This joint lets the thumb move freely in many directions. It provides strength so the hand can grasp and grip. A smooth tissue called cartilage lines and cushions the bones of the CMC joint.

2025年1月17日 · The thumb’s carpometacarpal joint, also known as the trapeziometacarpal joint, is the most specialized and adaptable of the five CMC joints. Metacarpals 2, 3, 4, and 5 on the medial side and the distal row of carpal bones (trapezium, trapezoid, capitate, and hamate) on the distal side are connected by the four functional plane synovial joints ...

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 icing, splinting, and...

3 天之前 · Carpometacarpal (CMC) joint arthroplasty is a surgery used to treat thumb arthritis when other treatments fail. The procedure involves removing the trapezium, a small wrist bone that supports the thumb joint, and replacing it with a graft or implant. This helps relieve pain and restore hand function for gripping, pinching, and grasping.

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.

The carpometacarpal joint is a synovial, saddle-shaped joint that serves as the articulation between the trapezium and the base of the first metacarpal (Fig. 85.4). The joint’s primary function is to optimize the pinch function of the hand.