4186635
Descrição
FlashCards por Haley Cordova, atualizado more than 1 year ago
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Criado por Haley Cordova
quase 11 anos atrás
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| Questão | Responda |
| What does the ulnar notch of the radius articulate with? What joint does this form? | Head of ulna Distal radioulnar joint |
| What does the head of the radius articulate with? What joint does this form? | Radial notch of ulna Proximal radioulnar joint |
| Which humeral epicondyle is larger? | Medial |
| What is the trochlear sulcus? | Groove between the rims of the trochlea (Trochlea is spool shaped) |
| What are the three fossae on the humerus? Located on anterior or posterior? | Radial fossa - anterior Coronoid fossa - anterior Olecranon fossa - posterior |
| What are the three concentric circles you will see in a true lateral elbow xray? | 1) Trochlear sulcus 2) Ridges of capitulum and trochlea 3) Trochlear notch |
| Type of movement at wrist (radiocarpal) joint | Ellipsoidal |
| What carpal bones does the radius articulate with? | Only scaphoid and lunate |
| What type of movement occurs at both radioulnar joints? | Trochoid/pivot |
| Which position of hand (supination or pronation) will show the radius and ulna separated? | Supination |
| Fingers 3,4, and 5 get rotated __________ ? | Laterally |
| How will the radius and ulna appear in a PA wrist radiograph? | Slight or total separation |
| How will radius and ulna appear on PA oblique wrist radiograph? | Slight superimposition |
| How will radius and ulna appear in a lateral wrist radiograph? | Totally superimposed |
| What three carpal bones are demonstrated in a lateral wrist radiograph? | Lunate Scaphoid Trapezium |
| What does radial deviation demonstrate? | Carpals on ulnar/medial side |
| What is seen on an AP forearm radiograph? | Wrist and elbow joint both included Radius and ulna separated except slight superimposition of radial head (proximal radioulnar joint) Humeral epicondyles in profile |
| What is seen on a lateral forearm radiograph? | Distal radius and ulna superimposed |
| In an AP elbow radiograph, should the radius and ulna be superimposed or separated? | Slight superimposition of radial head |
| In an AP elbow, if the radial head is free of superimposition, what error has occurred? | Rotated laterally (External oblique) |
| What does a lateral oblique elbow xray demonstrate? | The lateral structures: Capitulum Lateral humeral epicondyle Radial head and neck free of superimp. Radial tuberosity in profile |
| Phrase to remember for lateral oblique elbow | "When you go outside, wear a cap on your head" Outside (lateral) oblique position demonstrates the capitulum and the radial head |
| What does a medial oblique elbow xray demonstrate? | Medial structures: Medial epicondyle Trochlea Coronoid process in profile* Radial head totally superimposed with ulna* |
| What is seen in lateral elbow radiograph? | 3 concentric circles Olecranon process in profile ½ radial head superimposed |
| What does the axial lateral/Coyle method demonstrate? | Radial head and coronoid process |
| When is the Coyle method used? | To replaces obliques of the elbow when patient cannot extend |
| To demonstrate the radial head with the Coyle method, how would you position? | Hand pronated, elbow flexed 90° CR 45° toward shoulder |
| To demonstrate the coronoid process with the Coyle method, how would you position? | Hand pronated, elbow flexed 80° CR 45° away from shoulder |
| What method should be used when the elbow is flexed less than 90°? | Jones method |
| What is seen on an AP humerus radiograph? | Greater tubercle in profile laterally Epicondyles in profile Shoulder and elbow joint included |
| What is seen on a lateral humerus radiograph? | Lesser tubercle profile medially Epicondyles superimposed Shoulder and elbow joints included |
| What are the three trauma projections for humerus? | Trauma lateral distal Transthoracic lateral Trauma AP neutral rotation |
| What is the trauma lateral distal humerus projection? | Patient lying down with IR between thorax and humerus, elbow flexed 90° if possible Only displays distal 2/3 of humerus |
| What is the transthoracic lateral humerus projection? | Patient in true lateral Affected side to IR, no rotation of arm Unaffected arm raised above shoulder Breathing technique and long exposure to blur ribs and lung markings |
| What should you do if a patient cannot raise their unaffected arm enough for a transthoracic lateral humerus projection? | Angle the CR 10° cephalad |
| What is the trauma humerus AP neutral rotation projection? | Shoot the humerus "as is" |
| What is the Lawrence method? | Axial projection that can replace Grashey Patient prone, arm abducted, hand supin. CR angled 25-30° medially to axilla |
| What does the Lawrence method demonstrate? | Lesser tubercle of humerus and coracoid process of scapula profiled anteriorly Humeral head and glenoid fossa profiled |
| What position demonstrates a possible Hills-Sachs defect? | Lawrence method with exaggerated external rotation |
| What is the Hobbs modification | Mod. of Lawrence method Patient raises affected arm above body CR directed to axilla and humeral head |
| What do the Lawrence and Hobbs method demonstrate? | Lateral view of proximal humerus in relationship to shoulder joint |
| What does the Grashey method demonstrate? | Glenoid cavity in profile |
| What is the tangential intertubercular groove Fisk modification? | Demonstrates the intertubercular groove in profile to look for bicipital tendonitis Patient supine, hand supinated CR 15° posterior from horizontal, directed to top of humerus |
| What should you see in an AP scapula radiograph? | Entire scapula Lateral/axillary border free of ribs |
| What does a lateral scapula radiograph demonstrate? | Body of scapula or acromion and coracoid process |
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