II. Indications
- Appendicitis Evaluation
III. Technique
- Patient lies supine with right thigh flexed 90 degrees
- Examiner immobilizes right ankle with right hand
- Left hand rotates right hip by:
- Pull right knee laterally (hip external rotation)
- Pull right knee medially (hip internal rotation)
- Left obturator/Pelvis examined in similar fashion
IV. Interpretation
- Indicates irritation of obturator Muscle
- Suggests pelvic abscess as seen in Appendicitis
V. Efficacy
- Positive Likelihood Ratio (children): 3.5
- Negative Likelihood Ratio (children): 0.73