Week 11 Flashcards
(104 cards)
What type of joint is the elbow joint?
- hinge
What three joints make up the elbow joint?
- ulnohumeral
- radiohumeral
- proximal radioulnar joint
Elbow ligaments
- ulnar (medial) collateral ligament
- radial (lateral) collateral ligament
Joints of the hand and wrist
- carpometacarpal joint
- metacarpalphaleangeal joint
- proximal interphalangeal joint
- distal interphalangeal joint
Ligaments of the wrist and hand
- collateral ligaments of wrist and fingers
- collateral ligaments of fingers
- intercarpal ligaments (dorsal, palmar)
- triangular fibrocartilage complex (TFCC)
Collateral ligaments of wrist and fingers
- ulnar (medial) collateral ligament
- radial (lateral) collateral ligament
Triangular fibrocartilage complex (TFCC) aka triangular disc
- complex made up of load-bearing triangular fibrocartilage articular disc and ligaments on medial aspect of wrist
- disperses axial load from carpals to ulna
What is the TFCC thickened by?
- ulnar collateral ligament medially
What is TFCC a major stabilizer of?
- ulnocarpal joint
- distal radioulnar joint
What action does TFCC facilitate?
- articulations at wrist joint
Nerves at the elbow and wrist
- ulnar nerve at elbow and wrist
- median nerve under flexor retinaculum
Elbow flexors
- biceps brachii ( short and long head)
- brachialis
- brachioradialis
What is something to note about biceps brachii?
- long head of bicep also does shoulder flexion
Elbow extensors
- triceps brachii (long head, medial and lateral head)
- anconeus
Muscles of the forearm, wrist & hand: medial epicondyle
- common flexor tendon origin
Muscles of the forearm, wrist & hand: lateral epicondyle
- common extensor tendon origin
Physiological ROM of elbow
- flexion
- extension
- pronation
- supination
Physiological ROM of wrist
- flexion
- extension
- radial deviation
- ulnar deviation
Physiological ROM of digits
- flexion
- extension
- abduction
- adduction
- 1st-5th oppositon/reposition
Lateral epicondylitis (tennis elbow) MOI
- overuse of forearm extensors
What sports is lateral epicondylitis common in?
- tennis
- squash
- badminton
What are the most common extensors affected in lateral epicondylitis?
- extensor carpi radialis longus
- extensor carpi radialis brevis
Signs and symptoms of lateral epicondylitis
- TOP common extensor origin
- pain & weakness with wrist extension
Acute management of lateral epicondylitis
- stretch wrist extensors in elbow extension & flexion
- PIER
- tennis elbow brace?