Anvil test, sometimes also referred to as Supported Adam’s test is a provocative orthopaedic hip examination often used to determine if there is hip joint pathology, for example, hip arthritis, femoral neck/head fracture and infection.
- Patient supine, examiner flexes patient’s leg straight to 30°.
- Examiner then applies gentle axis compression to the leg (compressing hip joint)
- Examiner finally strikes the patient’s heel.
Hip pain is a positive sign of this test, indicating possible hip pathology. If local femoral, tibial, fibular or calcaneal pain is elicited, consider a diagnosis of fracture, or strain/sprain in the region corresponding to the pain.
Positive Anvil Test
- Hip pain: Hip joint pathology, arthritis, femoral neck or head fracture, infection
Clinician’s option: examiner may choose to repeatedly strike the heel with increasing force each time for up to 3 percussions.