Week 7 - Elbow, Humerus (Upper Extremities)

Question 1

Elbow - AP

Answer 1

PP: …..; Epicondyles paralell;
SID: 40”; Collimation is 3” abov and belw;
CR:
SS: slight superimp. of radial head, neck and tuberosity over prox. ulna (no elongation or foreshortening)

Question 2

Elbow - Lateral (LM)

Answer 2

PP: humerus, shoulder and elbow in same plane;
-flex elbow 90 degrees
-epicondyles perp to IR

CR: Perp to elbow joint
SS: superimpos. of R/U; Radial tuberosity facing anter.; superimp. of epicondyles; bony trabeculae; olecranon process in profile

*no elongation or foreshrt.

Question 3

Elbow - AP Oblique (Medial Rot.)

Answer 3

PP: 45 degrees rot towards body (mediallY)
CR: Perp to elbow joint
SS: coronoid process in profile
-ulna superimp. by radial headd and neck
-olecranon process w/i olecranon fossa
-bony trabeculae

Question 4

elbow - AP Oblique (Lat Rot. )

Answer 4

PP:45 degrees; first and 2nd digit will touch table when elb is sufficiently rot’d
CR: Perp to elbow
SS: Rad Head, neck and tuberosity projected free of ulna
-ELONGATED humeral
-Capitulum

Question 5

Humerus - AP / AP Recumbent

Answer 5

PP: …
-SID: 40”
-IR 1.5” above Hum; Head
-epicondyles parallel w/ IR
-incl both joints dist and prox.
-respiration suspended
CR: Perp to midpt of hum.
SS:

Question 6

Humerus: Lateral (ML) / Lateral

Answer 6

*Broken Humerus Pts (easy positioning using Mediolateral)

PP: …
- unless contraindicated
-IR: 1.5” above humeral head
-internally rotate arm; flex 90; palm on hip
CR: perp to hum midpt
SS: humerus w/ both joints