Musculoskeletal Hip/Groin Ultrasound
Order a musculoskeletal ultrasound of the left hip/groin with specific focus on the hip joint, adductor tendons, iliopsoas, and periarticular structures including bursae.
Recommended Ultrasound Protocol
For a 44-year-old with groin pain on abduction, you need a comprehensive musculoskeletal hip ultrasound that evaluates both intra-articular and extra-articular pathology. The pain with abduction suggests possible adductor pathology, hip joint issues, or bursitis—all well-visualized with ultrasound 1.
Key Structures to Image
The ultrasound should specifically include:
- Anterior longitudinal scan parallel to the femoral neck (most valuable for detecting hip joint effusion, synovitis, erosions, and osteophytes) 1
- Anterior transverse scan after 90° rotation 1
- Adductor tendon evaluation (common origin at pubic symphysis and muscle bellies)
- Iliopsoas assessment (tendon and bursa)
- Trochanteric and iliopectineal bursa evaluation 1
Why This Approach
Groin pain with abduction in a middle-aged adult most commonly stems from:
- Adductor-related pathology (tendinosis, partial tears at origin or musculotendinous junction) 2, 3, 4
- Hip joint pathology (effusion, synovitis, labral issues, early femoroacetabular impingement) 5
- Bursitis (iliopsoas or trochanteric) 1
- Pubic symphysis pathology 3, 6
Ultrasound is particularly valuable here because:
- Hip joint effusions are rarely detectable on clinical exam alone, but US readily identifies them 1
- US provides excellent accuracy for muscle/tendon injuries and can assess adductor pathology dynamically 2, 3
- It allows real-time dynamic assessment during hip movement 3
- High-frequency transducers (7.5-20 MHz for superficial structures, 3.5-5 MHz for deeper hip joint) provide detailed soft tissue visualization 1
Technical Specifications
Request the following in your order:
- High-resolution linear transducer for superficial structures (adductors, superficial bursae)
- Lower frequency transducer for deeper structures (hip joint itself)
- Dynamic evaluation with hip movement if tolerated
- Both longitudinal and transverse views of all structures 1
Clinical Pitfall to Avoid
Do not order a "hernia ultrasound" or generic "groin ultrasound"—these are often protocoled to focus primarily on inguinal hernias and may miss musculoskeletal pathology 6. Your order should explicitly state "musculoskeletal hip/groin ultrasound" or "hip ultrasound with adductor evaluation" to ensure proper imaging protocol 3, 6.
What Ultrasound Can Detect
The examination will identify 1, 2, 3:
- Joint effusion/synovial proliferation
- Cartilage lesions
- Bony irregularities (erosions, osteophytes)
- Tendinitis/tenosynovitis/tendon tears
- Bursal distention (trochanteric, iliopectineal)
- Muscle strains or tears
- Calcifications
When MRI May Be Needed
If ultrasound is negative or equivocal but symptoms persist, or if intra-articular pathology (labral tears, cartilage defects) is strongly suspected, MRI remains the gold standard for comprehensive hip joint evaluation 2, 5. However, ultrasound should be your first-line imaging given its excellent soft tissue resolution, dynamic capability, lower cost, and immediate availability 2, 3.