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Chapter 5 Bontrager
| Term | Definition |
|---|---|
| Hills-Sachs defect. | The humeral head may result in a compression fracture of the articular surface of the humeral head, called the |
| Where is Cr centered for AP Oblique Projection – Glenoid Cavity (Grashey Method): Shoulder (Nontrauma | CR perpendicular to IR, centered to scapulohumeral joint, which is approximately2 inches inferior & 2 inches medial from the superolateral border of shoulder |
| CR centering for AP projection shoulder (internal or external rotation) | to 1 inch inferior to coracoid process or 2 inches inferior to the lateral portion of the more readily palpated AC joint* |
| Where us Cr fir Transthoracic Lateral Projection: Proximal Humerus (Shoulder) | surgical neck |
| Which positions use orthostatic breathing technique? | Transthoracic lateral projection : proximal humerus shoulder, AP Scapula |
| what angle can be given to CR if patient cannot drop shoulder in transthoracic lateral position? | angle CR 10° to 15° cephalad* |
| Where is the CR directed for Oblique Projection – Scapular Y Lateral: Shoulder (Trauma)? | scapulohumeral joint (2 inches below AC joint) |
| What is the angle of the CR for AP Axial Projection: Clavicle? | mid clavicle CR 15° to 30° cephalad to |
| Where is the CR placed for AP Projection (Pearson Method): AC Joints (with & without weights)? | CR perpendicular to midpoint between AC joints, 1 inch above jugular notch |
| What projection may be performed for suspected AC joint subluxation or dislocation | Alternative AP Axial Projection (Alexander Method): This method requires a 15° cephalic angle centered at the level of the affected AC joint. It projects the AC joint superior to the acromion, providing optimal visualization. |
| What projection may be performed for suspected AC joint subluxation or dislocation & for soft tissue pathologies | Alternative AP Axial Projection (Zanca Method) |
| What method What is Alternative AP Axial Projection (Zanca Method) | 10° to 15° cephalic angle centered at the level of the affected AC joint, projects the AC joint superior to the acromion, 50% less kilovoltage than a standard glenohumeral exposure to better visualize the soft tissue & joint detail of the AC joint. |
| What adjustments can be made to the AP Axial projection if the patient must stay supine? | Tie both ends of a long strip of gauze to the patient’s wrists & place the strip around the patient’s feet with the knees partially flexed. Then, slowly & gently straighten the legs & pull down on the shoulders. (a protected assistant can pull down arms) |
| where is the CR for AP Projection: Scapula? | perpendicular to midscapula, 2 inches inferior to coracoid process, or to level of axilla, and approximately 2 inches medial form lateral border of patient |
| what is a bankart lesion? | small avulsion fracture in the anteroinferior region of the glenoid rim |
| What is the best modality to evaluate a possible rotator cuff tear? | MRI |
| tendon with most common inury to rotator cuff | supraspinatus |
Created by:
kdabney22
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