What it is (overview)

An XR Babygram Pelvis Infant (2+ views) Pediatric is a specialized pediatric X-ray exam that captures two or more radiology views of an infant’s pelvis and hips. “Babygram” is a common term used for X-ray imaging in very young children, and in this case the focus is the pelvic region. The goal is to look at the position, alignment, and development of the hip joints, pelvic bones, and nearby structures.

This test helps the radiologist and your child’s clinician assess whether the hip joint is forming normally. In infants, the hip socket (acetabulum) and the top of the thigh bone (femoral head) are still developing, and parts of the hip are made of cartilage that gradually ossifies (hardens into bone). Even with those normal developmental changes, X-ray views can still provide important clues about hip alignment, symmetry, and any obvious structural abnormalities.

What the results may mean: A report typically describes whether the hips appear well-seated and symmetric, whether there are signs concerning for developmental dysplasia of the hip (hip dysplasia), and whether there is evidence of injury or other structural issues. A “normal” result generally means the pelvic bones and hip alignment look appropriate for your infant’s age. An “abnormal” result may suggest the hip is shallow, misaligned, partially dislocated, dislocated, or that another problem (such as a fracture or infection-related changes) needs further evaluation. Depending on age and findings, your clinician may recommend follow-up imaging such as hip ultrasound (often preferred in younger infants) or repeat X-rays as your child grows.

When & why it's usually done

Clinicians order a pelvis infant X-ray (2+ views) when they need a clearer picture of the hip and pelvic bones to investigate symptoms, confirm a suspected diagnosis, or monitor a known condition. It is commonly used in developmental assessment of the hips and to check for structural abnormalities that could affect movement and growth.

This test may be recommended if an infant has:

Symptoms or exam findings such as decreased movement of one leg, apparent pain or distress with diaper changes or leg positioning, leg length difference, asymmetric thigh/gluteal skin folds, reduced hip abduction (difficulty spreading the legs), or a “click”/instability on a physical exam (e.g., positive Ortolani/Barlow maneuvers).

Risk factors for hip dysplasia including breech position late in pregnancy, family history of developmental dysplasia of the hip, female sex, tight swaddling with legs extended, firstborn status, or other musculoskeletal issues (such as foot deformities or torticollis) that can be associated with DDH.

Concern for injury such as after a fall or trauma (including suspected fracture or dislocation) or when a clinician needs imaging to evaluate unexplained pain, swelling, or limited leg motion.

Possible infection or inflammation when symptoms raise concern for conditions like septic arthritis or osteomyelitis (X-ray may be part of a broader workup along with lab tests and other imaging).

Follow-up and monitoring to check hip development over time, especially after treatment for hip dysplasia (for example, after a Pavlik harness or casting) or to track known orthopedic conditions.

Common diseases related to it

• Developmental dysplasia of the hip (DDH), including hip subluxation or dislocation
• Congenital hip dislocation
• Pelvic or femoral fractures (traumatic injury)
• Septic arthritis of the hip (infection)
• Osteomyelitis affecting the pelvic or proximal femoral bones
• Leg length discrepancy related to hip or pelvic alignment issues
• Neuromuscular hip instability (e.g., tone-related hip positioning problems)
• Congenital or developmental pelvic structural abnormalities

Health goals where it may help

• Early detection and treatment planning for hip dysplasia to support healthy hip development
• Confirming normal hip and pelvis alignment as part of a pediatric developmental assessment
• Guiding timely referral to pediatric orthopedics when structural abnormalities are suspected
• Monitoring progress and outcomes after treatment for DDH (e.g., harness, brace, or casting)
• Evaluating infant hip or pelvic pain, limited motion, or asymmetry to support safe mobility milestones (rolling, crawling, walking)
• Assessing for bone injury after trauma to ensure proper healing and prevent long-term complications
• Supporting diagnostic workup when infection or inflammation is a concern and rapid evaluation is needed