What is the STT joint of the hand?
What is the STT joint of the hand?
The most common symptom of osteoarthritis of the carpometacarpal (CMC) joint or scapho-trapezium/trapezoid (STT) joint, is pain at the bottom of the thumb. The pain can be worse with activities that require pinching, such as opening jars, turning door knobs or keys, and writing.
What is the Scaphotrapezial joint?
Purpose: Arthroscopy of the scaphotrapezial trapezoid (STT) joint is performed traditionally through a dorsal radial midcarpal portal. This portal allows visualization of the dorsal rim of the STT joint but is difficult to approach owing to lack of surface landmarks and it passes close to the radial artery and nerve.
What is STT OA?
STT arthritis. This is arthritis occurring between three bones in the wrist; the Scaphoid, the Trapezium and the Trapezoid. It can lead to pain and stiffness in the thumb and wrist. CONDITION.
What is a trapezium bone?
The trapezium bone is one of eight carpal bones that forms part of the wrist joint. The word trapezium is derived from the Greek word trapezion which means “a little table”. It is an irregular-shaped carpal bone and part of the radial side of the wrist. It is also called the greater multangular bone.
What does basal joint arthritis feel like?
The common symptoms of basal joint arthritis include swelling, stiffness and decreased strength when gripping or holding objects with the affecting hand. Pain in the thumb area is, of course, the most common symptom, and sometimes the base of your thumb may appear to be out-of-joint or swollen.
What is Pantrapezial osteoarthritis?
When both the TM and STT joint are involved, this is termed pantrapezial osteoarthritis. Arthroscopic techniques can still provide some relief but an open trapeziectomy is usually necessary. Symptoms. Symptoms include an aching pain in the ball of the thumb which may radiate up the forearm.
Why does my trapezium bone hurt?
Basal joint arthritis is one injury that is common to the trapezium/first metacarpal joint. It causes pain at the base of the thumb,particularly during pinching or gripping. It also results in weakness when pinching. This joint appears to be particularly prone to wear and tear from normal use of the hand.
What is the function of the trapezium bone?
Due to the location of the trapezium below the thumb joint, the trapezium plays a role in both the stability and the movement of the thumb. The trapezium also touches two other bones in the wrist joint, the scaphoid and trapezoid bones.
What does Basal thumb arthritis look like?
Appearance. The thumb may appear swollen, especially at its base, and you may develop a bony bump. Overall, the base of the thumb can take on an enlarged appearance. One alarming sign of thumb arthritis is improper alignment of the joint as it shifts from its normal positioning.
How long does CMC joint pain last?
It can take up to six months for the thumb to feel normal, and strength may take up to several years to improve.