Congenital anomalies upper

Question 1

When does the humeral head, greater tiber, lesser tuber and accromion appear by

Answer 1

hum head- 6m

Greater tub- 3yoa

Lesser tub- 5yoa

Acromion- 15-18yoa

Question 2

rhomboid fossa

Answer 2

• well marginated indentation on interomedial clavicle

no clinical sig

Question 3

Prominent corotid tubercle of clavicle

Answer 3

Normal tubercle on the inf aspect of the clavicle becomes enlarged and protrudes down

Question 4

Os acromiale (how common )

Answer 4

Unfused end of acromion

-8% of pop, 60% bilateral

Question 5

How does a supracondylar process tipically present

Answer 5

typically directed downwards pointing toward the jt.

Question 6

when does the capitulum, radial, int epicondyle, olecranon, lat epicondyle ossify

Answer 6

cap- 1yoa
radial- 5yoa
Int epi- 7yoa
Olecranon- 10yoa
Lat epicondyle- 11yoa

Question 7

Supratrochlear dorsale

Answer 7

small, chronic post traumatic osteochondral loose bodies lying within coronoid fossa

Question 8

Olecranon foramen

Answer 8

Typically the coronoid+ olecranon fossas will be seperated ny a septum

Question 9

What is madelung deformity and how will it present

Answer 9

Dorsal and medial bowing of distal radius due to growth resistance post trauma

-limited ROM in ext, ulnar dev

Question 10

Ulnar varience pos + negative

Answer 10

usually ulna will line up with radius, if it is above it is pos if its below its neg

Question 11

complications of neg and pos ulnar varience

Answer 11

Neg- AVN of lunate- ulnar impingment (Ulna hits distal radius)

Pos- Associated with wear + tear of the TFCC + ulnar impaction syndrome

Question 12

Carpal boss

Answer 12

A painful bump on dorsum of wrist

Question 13

Os styloidium

Answer 13

Accessory ossicle on MC base of 2nd digit

1-3%

Question 14

Carpal coalition MC

Answer 14

Mc between lunate and triquetrum (wont see articulation bw the 2)

Question 15

What carpal bone appears first and last

Answer 15

capitate= 1yoa

posiform= 8-12yoa