git_it_dun
Forum Junior
Topics: 10
Posts: 36
|
Hi ,
I have a Q regarding rheumatiod arthritis , which joints are not involed in the disease process ?
Thanks in advance.
|
| mash
Forum Fanatic
Topics: 147
Posts: 1,326
|
DIP and spine (except C1/C2)
___________________
I hear and I forget. I see and I remember. I do and I understand.
--Confucius
|
| git_it_dun
Forum Junior
Topics: 10
Posts: 36
|
Thanks Mash ,
but isnt DIP involved in the deformity?
|
| mash
Forum Fanatic
Topics: 147
Posts: 1,326
|
u mean boutonniere's and swan neck deformity?
but its not due to inv of joint per se..
boutonniere's -- PIP is forced into flexion by chronic synovitis of the joint-----> elongates central slip ----> rupture---> displacement of the lateral bands ---> increased tension on the DIP extensor mechanism---->hyperextension and limited flexion of the DIP
swan neck --stretching or loss of the terminal extensor tendon attachment at the DIP joint ----> DIP joint flexion because of the unopposed action of the FDP tendon--->shortening of lateral bands--->dorsal migration
PIP joint--- the volar plate becomes lax---->hyperextension at the PIP joint and migration of the lateral bands
___________________
I hear and I forget. I see and I remember. I do and I understand.
--Confucius
|
| git_it_dun
Forum Junior
Topics: 10
Posts: 36
|
Thanks .Mash
|
|
| |
| | | | | |
