Galeazzi test, sometimes also referred to as the Allis sign or the Skyline test, is used mainly to assess for hip dislocation, fundamentally to test for developmental dysplasia of the hip. Allis’ sign is typical used in adults to determine if leg length discrepancy is present.
- Infant’s is supine with hips flexed 45° and knees flexed 90°, until feet are in contact with the surface and ankles are in contact with the buttocks.
- Examiner then observes for the level of the knees.
Testing for leg length discrepancies (Allis’ Sign)
- Patient supine with hips flexed 45° and knees flexed 90°.
- Examiner observes the height of the patellas from the foot of the table for tibial length discrepancies.
- Examiner then observes laterally for femoral length discrepancies.
In infant’s if the knees are not level then the test is positive and typically indicates a potential congenital hip malformation.
Positive Galeazzi Test
- Knees Not Level: Potential congenital hip malformation or leg length discrepancy (Allis’ sign)
- Potential causes of leg length inequality include: congenital, poor fracture healing, bone growth disorders, degenerative joint disease.
- Positive test should be followed with leg length measure and/or scannography.