Recommended Imaging for Hip Pain in a 64-Year-Old Diabetic Male
Order plain radiographs of the pelvis and right hip immediately as your first imaging study 1.
Initial Imaging Approach
Plain radiographs are the mandatory first-line imaging for chronic hip pain evaluation. The ACR Appropriateness Criteria explicitly state that radiographs should be obtained first in most, if not all, cases of chronic hip pain 1. This is the standard of care despite being acknowledged as "opinion or dogma without good scientific evidence" 1.
Specific Views to Order:
- Anteroposterior (AP) view of the pelvis (not just the affected hip)
- Additional image of the proximal femur (cross-table lateral or frog-leg view)
- Consider bilateral views for comparison 2
The pelvis view is superior to isolated hip radiographs because it allows assessment of hip symmetry and can reveal contralateral pathology 1.
Role of MRI
If radiographs are negative, equivocal, or nondiagnostic, then order MRI of the right hip without IV contrast 1.
MRI should be the first advanced imaging technique after radiographs because it is:
- Highly sensitive and specific for detecting osseous and soft tissue abnormalities 1
- Excellent for evaluating soft tissue entities (bursitis, tendinosis, tears) 1
- Useful for detecting occult fractures, osteonecrosis, inflammation, and tumors 1
- IV contrast is rarely needed 1
Important Caveat:
Do not order MRI as a screening tool without radiographs first. Studies show MRI has poor cost-utility when used without supporting clinical and radiographic findings, with costs reaching $59,000 per impact study for undefined hip pain 3. Only 7% of hip MRIs impact treatment decisions independent of plain radiographs 3.
DEXA Scan Considerations
Yes, order a DEXA scan given this patient's profile 4. The updated 2025 DXA practice guideline recommends considering DEXA in:
- All men age >70 years
- Men age ≥50 years with risk factors for osteoporosis 4
Your 64-year-old diabetic male qualifies because:
- Diabetes is a risk factor for osteoporosis
- He has severe pain suggesting possible fracture risk
- DEXA will assess bone mineral density at lumbar spine, total hip, and femoral neck 4
Also consider vertebral fracture assessment (VFA) during the DEXA if T-score is <-1.0, as this can detect prevalent vertebral fractures 4.
Right Hand Joint Pain
The concurrent right hand pain suggests possible polyarticular involvement. Your laboratory workup is appropriate to evaluate for:
- Inflammatory arthritis (rheumatoid arthritis, psoriatic arthritis)
- Crystal arthropathy (gout, pseudogout)
- Metabolic bone disease
Plain radiographs of the right hand may also be warranted if labs suggest inflammatory or crystal disease.
Algorithmic Summary
- Immediate: Order AP pelvis + lateral right hip radiographs
- If radiographs show osteoarthritis: Physical examination and radiography may be sufficient 1
- If radiographs negative/equivocal: Order MRI right hip without contrast 1
- Concurrent: Order DEXA scan (appropriate for age and diabetes) 4
- Consider: Right hand radiographs based on laboratory results
- If infection suspected: Hip aspiration under imaging guidance 1
Critical Pitfalls to Avoid
- Never skip plain radiographs - they guide all subsequent imaging decisions 1
- Don't order MRI first - it's not cost-effective and rarely changes management without radiographic correlation 3
- Don't assume imaging alone makes the diagnosis - structural changes on MRI are frequent in asymptomatic populations and correlate poorly with pain 5
- In diabetic patients, consider Charcot neuroarthropathy if foot/ankle involvement develops, though this typically affects lower extremities differently than described here 6
The severity of pain (9/10) and radiation pattern warrant urgent evaluation to exclude fracture, avascular necrosis, or infection - all of which can be initially assessed with plain radiographs and have significant morbidity if diagnosis is delayed.