ELBOW Test

Question 1

Humeral Ulnar Joint:

Joint Type

Answer 1

Saddle Joint

1. Concave in one direction, convex in the other direction

Question 2

Humeral Radial Joint:

Joint Type

Answer 2

Ball and Socket Joint

1. Capitulum is the ball
2. Concave head of radius is the socket

Question 3

Superior Radial Ulnar Joint:

Joint Type

Answer 3

Trochoid (Pivot) Joint

Question 4

Inferior Radial Ulnar Joint

Joint Type

Answer 4

Trochoid (trochoid = pivot) Joint

1. Concave, convex type configuration

Question 5

Syndesmosis

Answer 5

between radius and ulnar with interosseus membrane

Question 6

Extension –> Flexion

Humero-Radial:

Answer 6

concave on convex

1. Same direction
2. Palmar glide at the R-U joint

Question 7

Extension –> Flexion

Humero-Ulnar:

Answer 7

Concave on Convex

1. Same direction
2. Palmar Glide for flexion

Question 8

Arthrokinematics

Radial Ulnar Joint

Answer 8

1 Convex on concave

2 A spin and some glide

Question 9

Fossa

Answer 9

1. Coronoid process on ulna anterior
2. Radial Fossa on ulna
3. Olecronon Fossa on posterior aspect

Question 10

Elbow Ligaments

Answer 10

1) Annular ligament:
2) Medial collateral: ulnar in anatomical position
3) Lateral collateral: a little bit anterior
4) Interosseous Ligament
5) Quadrate Ligament
6) Anterior ligament reinforce capsule
7) Oblique anterior ligament to reinforce the capsule

Question 11

Medial collateral ligament:

Answer 11

1. anterior bundle, transverse bundle, and posterior bundle

2. allows hold forces in three planes, hold elbow together

Question 12

Distal radius

Answer 12

a. Concave
b. Sockets for scaphoid lunate
c. Triangular fibrocartilage (disc, mensicus is also refferred to)

Question 13

Proximal radial ulna joint

Answer 13

Concave Radius on Convex Ulna

Question 14

Distal Radial Ulna Joint

Answer 14

Concave Radius on Convex Ulna

Question 15

R-U Articulations

distal

Answer 15

1. ulnar notch of radius concave

articulates with articular disc which is triangular shaped

2. ulnar head is convex
3. reinforced by anterior and posterior radial ulnar ligaments and interosseous ligaments

Question 16

humeroulnar joint positions

Answer 16

Resting position: 70 flex elbow, 10 supination

Closed packed: full elbow extend and supination

Question 17

humeroradial joint positions

Answer 17

resting position: FULL extension, FULL supination

closed packed position: elbow flexed 90 degrees, 5 degrees of supination

Question 18

proximal radialulnar joint positions

Answer 18

rest: 70 elbow flexion, 35 supination

closed packed: 5 degrees supination

Question 19

distal radial ulnar joint

Answer 19

rest: 10 degrees supination

closed packed: 5 supination

Question 20

capsular pattern elbow

Answer 20

flexion > extension

90 degrees flexion –> 10 degrees extension

Question 21

forearm capsular pattern

Answer 21

pronation and supination equal restriction

Question 22

endfeel in the elbow

extension

flexion

pronation

supination

Answer 22

extension: bone on bone
flexion: soft tissue
pronation: bone on bone
supination: abrupt and firm (more capsular)

Question 23

what position assess endfeel

flexion/extension

pronation/supination

Answer 23

flexion/extension: 70 flex, 10 supinate

pronation/supination: 10 degrees supination