|
|
How to measure LLI?
|
Logged in as: Guest
|
|
Users viewing this topic:
none
|
|
Login  | |
|
How to measure LLI? - May 26, 2006 1:49:00 AM
|
|
|
expatient
Posts: 17
Joined: May 16, 2006
Status: offline
|
According to Magee's textbook pg. 590-591, "true leg length...is measured in a supine position...obtain the distance from the ASIS to the medial or lateral malleolus. A difference of 1 to 1.3 cm is considered normal."
No wonder you make so many mistakes!!!
If you measure legs from ASIS you are not measuring leg length but leg+ilium bone length. Between those two there can be two subluxations: One in hip joint (very common) and other in SIJ as iliac can be rotated forwar (very common). That is why other leg "seems" to be shorter! True leg length is very rare...
You have to check first if patient, on supine position, has his PSIS and ASIS aligned! Very often they are not because other innominate has rotated forward... So on short leg side PSIS is usually higher. Easy to check!!!
I walked 25 years with LLI, until I found one who corrected my pelvis.
|
|
|
|
|
Re: How to measure LLI? - May 26, 2006 2:13:00 AM
|
|
|
Sebastian Asselbergs
Posts: 1204
Joined: September 29, 1999
From: Barrie, Canada
Status: online
|
OK - what would you say to the patient with hemipelvic assymmetry? X-rays confrimed that the pelvic halves are not equal....so ASIS and PSIS do not align level....Many more assymmetrical pelvises than you think....
_____________________________
Mundi vult decipi
|
|
|
|
|
Re: How to measure LLI? - May 26, 2006 4:33:00 AM
|
|
|
expatient
Posts: 17
Joined: May 16, 2006
Status: offline
|
They are not equal if other one is anteriorly rotated, so in picture they seem to have different shapes.
ASIS and PSIS are not supposed to be on the same level at the same side! ASIS is lower. That is normal.
But of course other resons for malalignment can exist. SIJD is most common, perhaps 98% of the LLI cases.
|
|
|
|
|
Re: How to measure LLI? - May 26, 2006 12:05:00 PM
|
|
|
nari
Posts: 1568
Joined: November 14, 2003
From: Australia
Status: offline
|
expatient
You have just contradicted yourself; in the first post you stated "PSIS is usually higher" in the short leg then in the second post "ASIS is normally lower".
For credibility, you need to read up some more.
Nari
|
|
|
|
 New Messages |
 No New Messages |
 Hot Topic w/ New Messages |
 Hot Topic w/o New Messages |
 Locked w/ New Messages |
 Locked w/o New Messages |
|
 Post New Thread
Reply to Message
Post New Poll
Submit Vote
Delete My Own Post
Delete My Own Thread
Rate Posts |
|
0.078
|
Printable Version
