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
VI. References
Images: Related links to external sites (from Bing)
Related Studies
| Concepts | Sign or Symptom (T184) |
| SnomedCT | 6292008 |
| English | obturator signs, obturator sign, Obturator sign, Obturator sign (finding) |
| Spanish | signo del obturador (hallazgo), signo del obturador |
