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Gaenslen's Test
- Indications: Evaluation for Sacroiliac joint disease
- Sacroiliitis in Ankylosing Spondylitis
- Technique: Passive Thigh Hyperextension
- Patient lies supine
- Fix lumbar spine against table (eliminates lordosis)
- Patient flexes hip and knee on affected side
- Patient holds knee with both hands
- Examiner hyperextends opposite thigh over side of table
- Interpretation: Positive Test
- Pain on thigh hyperextension suggests sacroiliitis