What is the appropriate evaluation and management for a 48-year-old female with mild persistent groin pain?

Evaluation and Management of Mild Persistent Groin Pain in a 48-Year-Old Female

A 48-year-old woman with mild persistent groin pain should undergo plain radiographs of the pelvis and hip as the initial imaging study, followed by a comprehensive physical examination focusing on hip-related pathology, adductor-related pain, and potential hernias, with pelvic ultrasound or MRI reserved for cases where initial evaluation is inconclusive or suggests specific pathology 1, 2, 3.

Initial Diagnostic Approach

Physical Examination Priorities

The examination should systematically evaluate four major musculoskeletal causes 3:

• Hip-related pain: Perform flexion-adduction-internal rotation (FADIR) test. A negative test helps rule out hip pathology, though its clinical utility is limited 1. Internal rotation of the hip reproducing groin pain is highly suggestive of intra-articular hip pathology 4.

• Adductor-related pain: Direct palpation of adductor tendons and resisted adduction testing 3.

• Inguinal-related pain: Palpation of the inguinal canal and assessment for posterior abdominal wall weakness 3.

• Iliopsoas-related pain: Resisted hip flexion and iliopsoas palpation 3.

Initial Imaging

Plain radiographs of the pelvis and hip are the appropriate first imaging study 2. Radiographs may be the only imaging necessary for common conditions like osteoarthritis or can guide subsequent imaging decisions 2. They screen for arthritis, bone tumors, and structural abnormalities efficiently.

Differential Diagnosis Considerations

At age 48, this patient falls into a transitional category where both reproductive-age and perimenopausal pathologies must be considered:

Musculoskeletal Causes (Most Common)

• Hip-related pain: FAI syndrome, acetabular dysplasia, labral tears, or early osteoarthritis 1, 2
• Adductor-related: Adductor tendinopathy or strain 3
• Pubic-related: Osteitis pubis or pubic symphysis dysfunction 5
• Inguinal-related: Inguinal canal weakness or occult hernia 3

Gynecologic Causes

While less common in this age group with mild symptoms, consider 6:

• Ovarian cysts (account for one-third of gynecologic groin pain in perimenopausal women)
• Uterine fibroids (second most common cause)
• Pelvic inflammatory disease (20% of cases)

Other Causes

• Hernias (particularly in women, may present without palpable mass) 7
• Nerve entrapment (iliohypogastric, ilioinguinal, genitofemoral) 8
• Referred pain from lumbar spine or sacroiliac joint 2, 9

Advanced Imaging Strategy

If radiographs are normal or inconclusive:

• For suspected hip pathology: MRI hip without contrast is usually appropriate 2. MRI is superior for evaluating labral tears, cartilage lesions, and soft tissue pathology 1.

• For suspected adductor pathology: MRI pelvis if diagnosis unclear or symptoms persist after 3 months of conservative management 3.

• For suspected inguinal pathology: Dynamic ultrasound to evaluate for hernia and posterior abdominal wall weakness 3. In elderly women with groin pain of obscure origin, herniography can identify occult hernias in 44% of cases 7.

• For nonspecific presentation: CT abdomen/pelvis with IV contrast has 89% sensitivity for urgent diagnoses and may be appropriate when the differential is broad 6.

Initial Management

Conservative Treatment (First-Line)

Exercise-based treatment should be initiated for at least 3 months duration 10. This is supported by moderate-level evidence and received the highest consensus recommendation (9/9 score) 10.

Specific interventions based on suspected etiology:

• Hip-related pain: Physical therapy focusing on hip strengthening and range of motion 4, 10
• Adductor-related pain: Active, supervised physical therapy 3
• Inguinal-related pain without hernia: Core strengthening and neuromuscular rehabilitation 3

Pharmacologic Management

• NSAIDs: Strong recommendation (high-quality evidence) for symptomatic hip osteoarthritis when not contraindicated 4
• Acetaminophen: May be considered as alternative analgesic 4

Monitoring and Reassessment

Reassess at 3-6 months 11, 12. Use patient-reported outcome measures (PROMs), physical impairment measures, and psychosocial factors to monitor treatment response 10. Discontinue ineffective treatments and reconsider the diagnosis if no improvement occurs after multiple treatment approaches 12.

Referral Indications

Refer to secondary care (orthopedics, sports medicine, or gynecology) if:

• Symptoms persist after 3-6 months of conservative management 11
• Radiographs reveal significant pathology requiring specialist evaluation
• Red flags present (night pain, constitutional symptoms, progressive neurologic deficits)
• Suspected hernia requiring surgical evaluation 3

Critical Pitfalls to Avoid

1. Don't assume all groin pain is musculoskeletal: In perimenopausal women, gynecologic causes account for significant pathology 6. However, musculoskeletal causes remain most common 3, 9.

2. Don't rely solely on physical examination: Clinical tests have good sensitivity but poor specificity 1. A comprehensive approach combining history, examination, and imaging is essential.

3. Don't order MRI without plain radiographs first: Radiographs are cost-effective screening tools that may provide definitive diagnosis or guide subsequent imaging 2.

4. Don't overlook referred pain: Lumbar spine and sacroiliac joint pathology commonly refer to the groin 2, 9.

5. Don't continue ineffective treatments: Periodically reassess and discontinue treatments that aren't providing benefit 12.

6. Don't miss occult hernias in women: Hernias may present without palpable mass, particularly in elderly women 7. Dynamic ultrasound is key for diagnosis 3.