carpal fracturs

Question 1

how many carpal bones are there?

Answer 1

8

Question 2

which bone is classified as a seasmoid bone

Answer 2

pisiform

Question 3

which pole of the scaphoid is avascular?

Answer 3

proximal pole

Question 4

what is the proximal pole of the scaphpoid subject to? and why

Answer 4

AVN; due to poor blood supply

Question 5

healing time for a proximal pole scaphoid fx

Answer 5

12-24 weeks

Question 6

healing time for a waist scaphoid fx

Answer 6

8-12 (70% of all fxs)

Question 7

healing time for distal pole scaphoid fx

Answer 7

6-8 weeks

Question 8

trapezium fx MOI and pain with __ and ___ and tenderness where

Answer 8

FOOSH; grip and pinch; at base of thumb

Question 9

with a capitate fx you may develop ___ and this injury usually occurs with what fx

Answer 9

AVN; scaphoid fx

Question 10

MOI for hamate fx

Answer 10

fall on palm, swing bat or club forcefully

Question 11

lunate fx suseptible to

Answer 11

AVN and Kienbock’s (necrosis of carpal which casues carpal collapse)

Question 12

MOI for lunate fx

Answer 12

FOOSH

Question 13

which is the most commonly dislocated carpal bone

Answer 13

lunate

Question 14

___ % of lunate articulates with TFCC

Answer 14

30%