Valgus Stress (Elbow) at 900 |
Examination type |
Joint
stability, ligamentous laxity |
Patient & Body Segment Positioning |
The patient is
sitting upright, with elbow flexed to 900. Patient
does not resist or assist any movement. |
Examiner Position |
The examiner
should face the patient while standing on the side of the
affected elbow with one hand cupping the elbow (heel of hand on
lateral side of elbow with fingers on medial side) for support
while the other hand is placed at the patient’s wrist to provide
force. |
Tissues
Being Tested |
Ulnar
collateral ligament of the elbow |
Performing the Test |
Cup the
posterior aspect of the patients elbow in one hand and hold the
patients wrist in the other. The hand on the elbow will act as
a fulcrum around which the examiner’s other hand will apply.
With the elbow flexed to 90 degrees, force the forearm laterally
which will place stress on the medial side of the elbow. |
Positive Test |
Lack of a firm
end feel or extra joint opening as compared bilaterally |
Interpretation |
Possible
sprain (stretching or even tear) of the ulnar collateral
ligament |
Common errors in
performing exam |
Not placing
enough force on the elbow; not placing the patient’s elbow in 90
degrees of flexion; not comparing bilaterally |
Factors possibly
resulting in misinterpretation |
Athletes who
routinely participate in repetitive overhead activities, such as
baseball pitchers, may show excess laxity in the dominant arm
even with no injury to the ulnar collateral ligament. |
Related tests |
Valgus stress
test at 0 degrees, Milking sign |
References |
Booher, James
M., and Thibodeau, Gary A. Athletic Injuries Assessment.
Fourth ed. 2002.
Magee, David
J. (2002). Orthopedic Physical Assessment. Philadelphia,
PA: Elsevier |
Links: |
http://www.physsportsmed.com/issues/1996/05_96/nirschl.htm
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