Lister’s tubercle or dorsal tubercle of radius is a bony prominence located at the distal end of the radius. It is palpable on the dorsum of the wrist.
What does Lister's tubercle separate?
Lister’s tubercle or the dorsal tubercle of the radius is a bony protuberance on the dorsal surface of the distal radius. It separates the 2nd (ECRB and ECRL) and 3rd (EPL) extensor compartments. It acts as a pulley for the EPL tendon, changing its mechanical direction of action.
What is the volar tubercle?
A volar tubercle is present on the volar side and two lateral tubercles [one on radial and one on the ulnar side. The volar tubercle provides attachemnt to flexor digitorum [flexor pollicis longus in thumb] and lateral tubercles provide attachment to lateral collateral ligaments.
Who is Lister's tubercle named after?
Joseph (Lord Lister), English surgeon, 1827-1912. Listeria – a genus of aerobic to microaerophilic, motile, peritrichous bacteria.
Where is the radial styloid?
The radial styloid process is found on the lateral surface of the distal radius bone. It extends obliquely downward into a strong, conical projection.
What is function of dorsal tubercle?
Lister’s tubercle or the dorsal tubercle of the radius is a bony protuberance on the dorsal surface of the distal radius. It separates the 2nd (ECRB and ECRL) and 3rd (EPL) extensor compartments. It acts as a pulley for the EPL tendon, changing its mechanical direction of action.
Why is Lister's tubercle important?
Function. Lister’s tubercle serves as a pulley for the tendon of extensor pollicis longus, which wraps around the medial side and takes a 45° turn.
What is the tubercle of a bone?
A tubercle is a small rounded point of a bone. It also refers to a nodule attached to bone, mucous membrane (moist layer lining parts of the body), or skin.
Who is father of antiseptic surgery?
[Joseph Lister, the “father” of antiseptic surgery]
What is the tubercle of scaphoid bone?
The scaphoid tubercle is a blunt, nonarticular projection adjacent to the hollowed capitate facet on the lateral edge of the bone. The tubercle is one of four attachment points for the flexor retinaculum, a fibrous band across the wrist.
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What is the radial tubercle?
Medical Definition of radial tuberosity : an oval eminence on the medial side of the radius distal to the neck where the tendon of the biceps brachii muscle inserts.
What is the fastest way to heal a broken scaphoid?
- Advance therapy with gentle AROM of the wrist and gentle opposition and flexion/extension exercises to the thumb.
- Continue elbow and shoulder exercises.
- Remove the short-arm cast at 6 weeks if the fracture appears to be radiographically healed.
- Use a wrist splint for protection.
What does radial styloid mean?
The radial styloid process is a projection of bone on the lateral surface of the distal radius bone. It extends obliquely downward into a strong, conical projection. The tendon of the brachioradialis attaches at its base, and the radial collateral ligament of the wrist attaches at its apex.
Where is the Triquetrum?
The triquetrum is one of eight carpal bones that forms part of the wrist joint. 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”.
Where is Pisiform bone?
The pisiform can be found on the anteromedial side of the wrist in the proximal row of carpal bones. It is a small sesamoid bone, enveloped in the flexor carpi ulnaris tendon and can be easily palpated from the exterior.
How do you treat intersection syndrome?
This condition is generally treated conservatively by avoiding activities that are painful, and by immobilizing the thumb and wrist in a splint. Ice and non-steroidal anti-inflammatory medications like ibuprofen can also help with pain and swelling. Corticosteroid injections into the area are sometimes recommended.
What causes intersection syndrome?
Intersection syndrome can be caused by direct trauma to the second extensor compartment. It is more commonly brought on by activities that require repetitive wrist flexion and extension. Weightlifters, rowers, and other athletes are particularly prone to this condition.
What is distal intersection syndrome?
Distal intersection syndrome also referred to as tenosynovitis of the radial wrist extensors is characterized by the radial wrist and forearm pain. Distal intersection syndrome is tenosynovitis of the third extensor compartment (extensor pollicis longus) where it crosses the second extensor compartment.
What is EPL tendon?
The long extensor tendon to the thumb is called the Extensor Pollicis Longus (EPL). This tendon straightens the end joint of the thumb and also helps pull the thumb in towards the index finger. The tendon runs around a bony prominence on the back of the wrist called Lister’s tubercle.
Where is the extensor pollicis longus?
Extensor pollicis longus (EPL) is a long muscle located at the deep layer with extensor pollicis brevis, abductor pollicis longus, extensor indicis, and supinator muscle in the posterior compartment of the forearm.
Why is Radius called radius?
The radius is named so because the radius (bone) acts like the radius (of a circle). It rotates around the ulna and the far end (where it joins to the bones of the hand), known as the styloid process of the radius, is the distance from the ulna (center of the circle) to the edge of the radius (the circle).
When was Joseph Lister born?
Joseph Lister was born in Upton, Essex, England, on April 5, 1827, into a prosperous Quaker family [2].
Where did Joseph Lister do his work?
The Right Honourable Baron Lister of Lyme Regis OM PC PRSScientific careerFieldsMedicineInstitutionsUniversity of Edinburgh University of Glasgow King’s College LondonInfluencesWilliam Sharpey Wharton Jones Louis Pasteur
What is aseptic surgery?
n. Surgery performed under sterilized conditions to prevent the introduction of infectious microorganisms.
Where are tubercle found?
Tubercles are usually found behind the last molar in the upper jaw, covered by the gum.
Is tubercle same as tuberosity?
Tuberosity – A moderate prominence where muscles and connective tissues attach. Its function is similar to that of a trochanter. Examples include the tibial tuberosity, deltoid tuberosity, and ischial tuberosity. Tubercle – A small, rounded prominence where connective tissues attach.
What are bone markings?
Bone markings are projections and depressions found on bones, which help us to identify the location of other body structures, such as muscles. Their importance comes when we try to describe the shape of the bone or to understand how the muscles, ligaments and other structures affect this bone and vice versa.
Is Listerine named after Joseph Lister?
Listeria [lis-teʹre-ə] In 1927, Pirie proposed the genus Listerella in honor of British surgeon Sir Joseph Lister (1827–1912), an early advocate of antiseptic surgery. … The mouthwash Listerine was also named after Lister, in 1979 by Lawrence and Bosch, when it was marketed as a surgical antiseptic.
What did Joseph Lister discover?
Joseph Lister found a way to prevent infection in wounds during and after surgery. He was the first to apply the science of Germ Theory to surgery. Lister’s Antisepsis System is the basis of modern infection control. His principles made surgery safe and continue to save countless lives.
What was Joseph Lister's childhood like?
Joseph Lister was born on April 5, 1827 in Upton, Essex, England. His father, Joseph Jackson Lister, was not only a wine merchant, but was also an amateur scientist. He was the second among three children. Coming from a family of Quakers, the young Joseph Lister also attended Quaker Schools in London and Hertfordshire.
What attaches to tubercle of scaphoid?
The palmar surface of the scaphoid is concave, and forming a tubercle, giving attachment to the transverse carpal ligament. The proximal surface is triangular, smooth and convex, and articulates with the radius and adjacent carpal bones, namely the lunate, capitate, trapezium and trapezoid.
