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This area may be tender, meaning it is painful when pressed. There may also be hyperextension of the metacarpophalangeal joint. The thumb metacarpal deviates towards the middle of the hand (adduction). [12] Also a grinding sound, known as crepitus, can be heard when the TMC joint is moved, more so when axial pressure is applied. [13]
Osteosclerosis is a disorder characterized by abnormal hardening of bone and an elevation in bone density. It may predominantly affect the medullary portion and/or cortex of bone.
Osteoarthritis commonly affects the hands, feet, spine, and the large weight-bearing joints, such as the hips and knees, although in theory, any joint in the body can be affected. As osteoarthritis progresses, movement patterns (such as gait), are typically affected. [1] Osteoarthritis is the most common cause of a joint effusion of the knee. [15]
Osteoarthritis of the hand causes stiffness of the base of the thumb, alongside enlargement of DIP and PIP joints, leading to the formation of Heberden's nodes and Bouchard's nodes respectively. [6] Such firm and bony swellings at the finger joints are caused by the growth of osteophytes .
The cause is unknown. In this condition, cartilaginous metaplasia takes place within the synovial membrane of the joint. Metaplastic synovium organizes into nodules. With minor trauma, nodules are shed as small bodies into the joint space. In some patients, the disease process may involve tendon sheaths and bursal sacs.
Osteochondritis dissecans (OCD or OD) is a joint disorder primarily of the subchondral bone in which cracks form in the articular cartilage and the underlying subchondral bone. [1] OCD usually causes pain during and after sports. In later stages of the disorder there will be swelling of the affected joint that catches and locks during movement.
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 separately.
Osteochondritis is a painful type of osteochondrosis where the cartilage or bone in a joint is inflamed. [1]It often refers to osteochondritis dissecans (OCD). The term dissecans refers to the "creation of a flap of cartilage that further dissects away from its underlying subchondral attachments (dissecans)".