UE Joint info

what 4 joints is the shoulder made up of

acromioclavicular

sternoclavicular

glenohumeral

scapulothoracic

articulations in GH joint

convex head of humerus

concave glenoid fossa of scapula

how many degrees of freedom in the GH joint

3

• flexion/extension

• abduction/adduction

• rotation

loose packed position of the GH joint

55 deg abduction

30 deg horizontal adduction

close packed position of the GH joint

abduction and lateral rotation

capsular pattern of the GH joint

lateral rotation

abduction

medial rotation

how many degrees of freedom in the sternoclavicular joint

3 degrees

elevation/depression

protraction/retraction

rotation

loose packed position of the SC joint

arm resting by the side

close packed position of the SC Joint

maximum shoulder elevation

capsular pattern of the SC joint

pain at extremes of range of movement

how many degrees of freedom at the acromioclavicular joint

3 degrees

anterior/posterior tilting

upward/downward rotation

protraction/retraction

loose packed position of the AC joint

arm resting by the side

close packed position of the AC joint

arm abducted to 90 deg

capsular pattern of the AC joint

pain at extremes of range of movement

what are the articulations of the elbow

radiohumeral, ulnohumeral, radioulnar

radiohumeral joint articulation

convex humerus (capitulum)

concave head of radius

degrees of freedom of the radiohumeral joint

2 degrees

flexion/extension

pronation/supination

loose packed position of the radiohumeral joint

full extension, supination

close packed position of the radiohumeral joint

90 deg flexion, 5 deg of supination

capsular pattern of the radiohumeral joint

flexion, extension, supination, pronation

degrees of freedom at the ulnohumeral joint

1 - flexion/extension

loose packed position of the ulnohumeral joint

70 deg flexion

10 deg supination

close packed position of the ulnohumeral joint

extension

capsular pattern at the ulnohumeral joint

flexion, extension

degrees of freedom at the proximal radioulnar joint

concave radial notch of ulna, convex rim of radial head

1 degree of freedom - pronation, supination

loose packed position of proximal radioulnar joint

70 deg elbow flexion, 35 deg supination

close packed position of proximal radioulnar joint

5 deg supination

capsular pattern of proximal radioulnar joint

supination, pronation

articulations in the radiocarpal joint

distal radius and radioulnar articular disc connects to medial aspect of the distal radius to distal ulnar

distal connects to scaphoid, lunate, and triquetrum

how many degrees of freedom at the radiocarpal joint

2

flexion/extension

radial/ulnar deviation

loose packed position of the radiocarpal joint

neutral with slight ulnar deviation

close packed position of the radiocarpal joint

extension with radial deviation

capsular pattern of the radiocarpal joint

flexion and extension equally limited