UL Joints Flashcards
Give the articulation in the wrist joint
Distal radius to the scaphoid, lunate and triquetrum
Give 3 types of ligament in the wrist.
Collateral (radial and ulnar)
Palmar
Dorsal
What do the collateral ligaments of the wrist connect?
Ulnar styloid to triquetrum and pisiform.
Radial styloid to scaphoid and trapezium.
What does the palmar ligament of the wrist connect?
Distal radius to scaphoid, lunate, triquetrum
What does the dorsal ligament of the wrist connect?
Distal radius to scaphoid, lunate and triquetrum.
Give 2 fractures that may occur when falling on an outstretched hand.
Colle’s fracture
Scaphoid fracture
Describe a scaphoid fracture and the sign and sequelae.
Scaphoid fracture
Pain in anatomical snuff box
Risk of avascular necrosis
Describe a Colle’s fracture.
FOOSH
Fracture of distal radius
Posterior displacement of the hand and wrist.
Dinner fork deformation.
Describe a Smith’s fracture
Fracture of the distal radius.
Fall on flexed wrist
Results in hyper flexion and anterior displacement of hand and wrist.
Reverse Colle’s
Classify the wrist joint
Condyloid, synovial
Classify e elbow joint. What is the angle during maximum extension?
Hinge, synovial
170
How many articulations in the elbow joint? Give them.
3
Humeroradial
Humeroulnar
Proximal radioulnar
Describe specifically the articulations of the elbow.
Capitulum to radial head.
Trochlear to trochlear notch.
Radial head to radial notch.
Give three ligaments in the elbow
Radial collateral
Ulnar collateral
Annular
What does he radial collateral ligament in the elbow join? What is its function?
Lateral epicondyle to annular ligament around radial head.
Keeps the head of the radius in the capitulum.
What does the ulnar collateral ligament join? Describe its structure.
3 parts:
Anterior is strongest spanning from med epicondyle to coronoid process.
Posterior is weaker fan like from med epicondyle to coronoid process.
Oblique deepens socket for medial epicondyle
Describe the annular ligament.
Surrounds the lower head of radius.
Attached to the radial notch anteriorly and posteriorly.
Keeps the radial head close to the radial notch and joint tight.
Give two bursae in the elbow and their location.
Subtendinous
- between triceps tendon and olecrannon.
Subcutaneous
- overlying olecrannon.
What is dislocation and what is subluxation?
Dislocation is complete loss of contact of joint surfaces.
Subluxation is misalignment of joint surfaces but maintained articulation.
Describe how adults ion of the medial epicondyle in the elbow occurs.
Severe abduction of extended arm.
Ulnar collateral ligament pulls medial epicondyle medially.
Classify the glenohumeral joint.
Why is it unstable?
Ball and socket, synovial joint.
Disproportionate articulating surfaces, little area for articulation. Compromise in stability for mobility.
Give the articulation of the glenohumeral joint.
Head of humerus to the glenoid cavity.
Lined with hyaline cartilage.
How many ligaments in the glenohumeral joint
6
3 intra capsular
3 extra asphalt
Describe the intra capsular ligaments of the glenohumeral joints.
Superior
Middle inferior
Thicken the capsule
