What does the pisiform articulate with?

Articulations. The pisiform does not form part of the wrist joint movement, unlike all other carpal bones. It is situated where the ulna and the wrist meet but articulates with the triquetrum only. It lies in a plane anterior and superficially to all other carpal bones.

Why does my pisiform bone hurt?

Causes of wrist pain Chronic pain in the pisiform area (or wrist pain) may be caused by tendonitis of the flexor carpi ulnaris, bony fractures or osteoarthritis of the pisotriquetral joint. Osteoarthritis of the pisotriquetral joint is most often caused by acute and chronic trauma and instability.

Where is the Triquetral bone?

wrist
It is a pyramidal shaped bone that can be found in the medial side of the wrist. The name triquetrum is derived from the Latin word triquetrus which means “three-cornered”. Sometimes it is also called triquetral bone, triangular bone or cuneiform bone.

Can you dislocate your pisiform?

INTRODUCTION. The pisiform is a sesamoid bone located in the flexor carpi ulnaris tendon. Acute isolated dislocation of the pisiform bone is a rare and usually missed diagnosis in the emergency department [1]. They are often misdiagnosed as a sprain or soft tissue injury of the wrist by emergency physicians.

Is the pisiform anterior or posterior?

It is situated where the ulna joins the wrist, within the tendon of the flexor carpi ulnaris muscle. It only has one side that acts as a joint, articulating with the triquetral bone. It is on a plane anterior to the other carpal bones and is spheroidal in form.

What is the knob on your wrist called?

The carpus is rounded on its proximal end, where it articulates with the ulna and radius at the wrist. The carpus is slightly concave on the palmar side, forming a canal known as the carpal tunnel through which tendons, ligaments, and nerves extend into the palm.

What does the pisiform do?

Function. The pisiform bone is most recognizable as an unassuming palmar projection forming the heel of your hand. The pisiform bone, along with the hamulus of the hamate, defines the medial boundary of the carpal tunnel because the pisiform body acts as one of the four attachments points of the flexor retinaculum.

How long does it take for a pisiform fracture to heal?

Most patients with a pisiform fracture can be treated with cast immobilization for 4 to 6 weeks. Conservative management for non-displaced triquetrum body fractures or dorsal chip fractures involves a short arm cast for 4 to 6 weeks.

What is a triquetral?

The triquetral is one of the eight carpal bones of the hand. It is a three-faced bone found within the proximal row of carpal bones. Situated beneath the pisiform, it is one of the carpal bones that form the carpal arch, within which lies the carpal tunnel.

What is a triquetral bone fracture?

A triquetral fracture happens when you break or crack the triquetrum, one of the 8 small carpal bones that form a part of your wrist.

What is a hamate bone?

The hamate bone is one of eight carpal bones that forms part of the wrist joint. The word hamate is derived from the Latin word hamulus which means “a little hook”. It is a wedge-shaped bone with a hook-like process that can be found in the medial side of the wrist.

Where is the Pisotriquetral joint?

The pisotriquetral joint is the smallest of the four joints of the wrist. Although separate, it is often connected to the radiocarpal joint through a fenestration. The gross anatomy and kinematics of the pisotriquetral joint have been well described.