Chap 4 elbow review (S1) Flashcards
Proximal Carpal bones
scaphoid
lunate
triquetrum
pisiform
distal proximal bones
trapezium
trapezoid
capitate
hamate
what does radius articulate with distally?
(distal articulation)
scaphoid and lunate carpal bones
The capitulum is part of what bone?
distal humerus
What view causes cross over?
internal elbow
but also PA forearm
What kind of joint is radioulnar?
pivot (trochoidal) joint
joints parallel to IR at all times?
YES
What joint is elbow, humeroulnar and humeroradial
hinge (ginglymus)
What joint is interphalangeal (IP)
All IP’s are hinge (ginglymus joints)
What joint is Metacarpophalangeal? (MCP)
Condyloid (ellipsoidal)
What joint is Carpometacarpal (CMC)
1st digit is Saddle (Sellar) joint
2-5 digits are plane (gliding) joints
What joint is distal radioulnar and proximal radioulnar?
pivot (trochoidal) joint
What joint is the radiocarpal joint?
ellipsoid (condyloid) joint
What joint is Intercarpal joints?
Plane (gliding) joints
arm flexed in 90 degrees
lateral position
Position vs projection
position is medial for 5th digit
projection is lateromedial for 5th digit
if there is an anterior posterior fracture of the radius, what view would best show this fracture?
lateral
Lateral fracture best displayed in?
AP view
What view shows the radius and ulna in slight superimposition?
AP
Either elbow or forearm
What is the first CMC joint?
Sellar (saddle) joint
What demonstrates the scaphoid best?
Scaphoid wrist view
CR is15 degrees toward wrist at scaphoid
ulna deviation
what is best demonstrated in a fan lateral?
phalanges and IP joints, rest is superimposed
What are the views for thumb?
special one?
AP (robert’s view “special view”)
Oblique view
Lateral view
What view shows arthritus?
Ball catcher
what view best views carpal tunnel sydrome?
Gaynor hart method
What view best displays the hook of the hamate (hamulus)?
Gaynor hart method
CR: 25 to 30 degrees long axis of hand 1 inch distal to third MCP (center of the palm)
Colles fx
radius and ulna go anterior
distal part goes posterior
Smith fx
radius and ulna go posterior
distal part goes anterior
bartons fx
Fx of the Posterior lip of the distal radius
Bennets fx
fracture at the base of the first metacarpal
boxers fx
fracture of the fifth metacarpal
Osteoporosis
decrease in bone density
decrease technique
Osteopetrosis
hereditary disease resulting in abnormal dense bone
increase technique
how many phalanx on each digit?
3 phalanx (distal, middle, proximal) on digits 2-5
2 phalanx on thumb (distal and proximal)
How many IP joints in each digit?
2-5 digits: 2 IPs (DIP,PIP)
Thumb: 1 IP
CR for elbow positions:
AP: mid-elbow joint
INT:mid-elbow joint
EXT: mid-elbow joint
LAT: mid-elbow joint
CR for forearm view:
AP: mid-forearm
LAT: mid-forearm
CR for hand views:
PA: 3rd MCP
OBL: 3rd MCP
FAN LAT: 2nd MCP
CR for Digit views:
PA:
OBL: PIP
LAT: PIP
CR for wrist views:
PA: Mid carpal
OBL: Mid carpal
LAT: Mid carpal
Scaphoid: at scaphoid 15 degree CR toward elbow
Articulation of the trochlea and trochlea notch form?
Humeral ulna
(Trochlea on distal humerus)
(Trochlea notch on ulna)
Olecranon process
located posterior/superior of ulna
only seen in lateral elbow
Coronoid process
Located anterior/inferior of the ulna
seen best in internal elbow oblique