Flashcards in 04 Knee Special Tests: Intra-Articular Effusion Deck (13):
Davies rule of 3
1. general idea
2. implicate structure
3. corroborate findings
Why would you do tests for intra-articular effusion?
- hx macrotrauma
- c/o stiffness
- increased anthropometric measurements
Before doing the intra-articular effusion tests, what do you ned to do?
put a bolster under their knees
Why do you put a bolster under the patient's knees for the intra-articular effusion tests?
If they have effusion, the knee will always seek the 30˚ flexion position
What is one clue that they may have intra-articular effusion?
walking with a toe gait to keep flexed position
If the patient doesn't have intra-articular effusion, what will be the case with gait and position on the table?
- walking fine
- knee will extend all the way
How far does the capsule extend?
- wrist crease on joint line, fingers angled up the thigh
- extends to where the fingers end
Milking test procedure
- patient supine
- knee flexed 30˚ over bolster
- milk fluid from superior part of capsule down to superior pole of patella 3x
- hold it on the 3rd time
- keep hand in place from milking test
- use other hand to sweep medially and laterally
- 3x each side
What is happening in the sweeping test?
- compressing top
- forcing fluid medially and laterally
- fluid causes tissue to distend/extravasate
ballotment test procedure
- 1 finger on superior pole
- 1 finger on inferior pole
- push straight down and relax 3x
ballotment test: Why should you not take the fingers off the patella?
won't feel the bounce