Clasification

Question 1

in SNAC what are the why of progression

Answer 1

radial styloid > Scaphocapitate arthrosis > Periscaphoid arthrosis (proximal lunate and capitate)

Question 2

for what Eaton classification used and what are the stages

Answer 2

Eaton used for Thumb Carpometacarpal Arthrosis

1) No joint destruction, Less than one third subluxation
2) Slight decrease in joint space
Marginal osteophytes <2 mm
May be one-third of subluxation
3) Significant joint destruction with cysts and sclerosis , Osteophytes >2 mm. Greater than one-third of subluxation
4)Involvement of multiple joint surfaces

Question 3

what is the name of the classification of nerve injury

Answer 3

Seddon (neuropraxia , axonotimesis, neurotemsis )
Sunderland ( 1-5 , 1=S1 ,2-4=S2, 5=S3)

Question 4

what is the name and stages of lunate AVN classification

Answer 4

Lichtman Classification
1) No visible changes on xray, changes seen on MRI
2) Sclerosis of lunate
3a) Lunate collapse, no scaphoid rotation
3b) Lunate collapse, fixed scaphoid rotation
4) Degenerated adjacent intercarpal joints

Question 5

סימנים לכישלון ברדוקציה בגבס ברדיוס הדיסטלי

Answer 5

לפונתל
1) אנגולציה דורסלית מעבר צ20 מעלות
2) הרס של הקורטקס הדורסלי
3) מעורבות מפרקית
4) מעורבות של האולנה
5) גיל מעל 60

Question 6

Post reduction crater for cast stability

Answer 6

Lafontaine
1) initial dorsal annotation of above 20
2) dorsal combination
3 ) intrarticular
4) age above 60
5) ulnar involvement