ACROMIOCLAVICULAR JOINTS

Question 1

PP: Upright/seated-upright (ACJ reduces itself in recumbent); arms hanging at sides (unsupported); 2 exposures: with & without weights (5-10 lbs.); affix the weights to patient’s wrist
RP: b/n level of AC joints; directed at each ACJ (broad-shouldered patients)
CR: ┴
SS: Bilateral AC joints
ER: Used to demonstrate dislocation, separation & function of the ACJ

Answer 1

PEARSON METHOD
BILATERAL AP PROJECTION

Question 2

PP: Upright/seated-upright; coracoid process centered to IR
RP: Coracoid process
CR: 15o cephalad (projects ACJ above acromion)
SS: AC joints above acromion
ER: For demonstration of suspected AC subluxation or dislocation

Answer 2

ALEXANDER METHOD
AP AXIAL PROJECTION

Question 3

PP: Upright; RAO/LAO; MCP 45-60o from IR; scapula ┴ to IR; hand of affected side under opposite axilla; lean affected shoulder against IR; arm pulled firmly across the chest (draws scapula laterally & forward & places joint close to IR) (scapula & ACJ in lateral position)
RP: AC joints
CR: 15o caudad
SS: AC joint
-Relationship of the bones of the shoulder

Answer 3

ALEXANDER METHOD
PA AXIAL OBLIQUE PROJECTION