What is the recommended management for a 73‑year‑old woman with advanced bilateral hip osteoarthritis, associated lumbar spine and sacroiliac joint degenerative changes, and mild levoconvex lumbar scoliosis?

Management of Advanced Bilateral Hip Osteoarthritis in a 73-Year-Old Woman

This patient should be evaluated for total hip arthroplasty (THA) given the radiographic evidence of advanced bilateral hip osteoarthritis with significant joint space narrowing and structural damage, while simultaneously initiating a multimodal non-pharmacological and pharmacological treatment program if surgery is not immediately pursued or while awaiting surgery. 1

Immediate Assessment and Treatment Algorithm

Step 1: Assess Symptom Severity and Functional Impact

Determine the patient's:

• Pain intensity at rest and with activity
• Functional limitations (walking distance, stair climbing, activities of daily living)
• Response to prior conservative treatments
• Impact on quality of life and independence
• Patient's goals and expectations

Critical decision point: If the patient has refractory pain and disability despite conservative measures, proceed directly to surgical evaluation 1, 2.

Step 2: Initiate or Optimize Conservative Management

Non-Pharmacological Interventions (Start Immediately):

• Patient education: Provide information about the disease, self-management strategies, and realistic expectations 1, 3

• Exercise program: Prescribe structured exercise including strength training, aerobic activity, and flexibility exercises. Minimum 12 sessions with progression tailored to function 4, 3. Physical therapy should be considered for mild-to-moderate symptoms 2

• Weight reduction: If overweight or obese, this is essential for both hip and knee joints 1, 5

• Assistive devices: Walking stick or cane to reduce hip joint loading 1

Pharmacological Management (Stepwise Approach):

1. First-line: Acetaminophen up to 4 g/day for mild-moderate pain 1, 2

2. Second-line: If acetaminophen inadequate, add oral NSAIDs at lowest effective dose 1, 2. Given her age (73 years), assess gastrointestinal and cardiovascular risk:

   • High GI risk: Use selective COX-2 inhibitor OR non-selective NSAID plus gastroprotective agent 1
   • Cardiovascular comorbidities: Exercise caution with all NSAIDs

3. Third-line: Intra-articular corticosteroid injections (ultrasound or fluoroscopy-guided) for acute flares unresponsive to oral medications 1, 2

4. Alternative: Opioid analgesics (with or without acetaminophen) only if NSAIDs contraindicated, ineffective, or poorly tolerated 1. Avoid chronic opioid use 6

5. Adjunctive: Duloxetine may be considered 5, 6

Do NOT use: Intra-articular hyaluronic acid injections (strong recommendation against) 2

Step 3: Address Concurrent Lumbar and Sacroiliac Pathology

Important clinical consideration: The lumbar scoliosis and SI joint degeneration complicate the clinical picture:

• Distinguish pain sources: Hip OA typically causes groin pain with internal rotation, while lumbar/SI pathology causes back and buttock pain 7

• Perform provocation tests: Multiple SI joint provocation tests (due to moderate sensitivity/specificity) and hip range of motion testing 7

• Key insight: THA can actually relieve concurrent low back pain in patients with both hip and lumbar degenerative disease in 93% of cases, potentially avoiding spinal surgery 8. The hip pathology may be contributing to spinopelvic imbalance and compensatory lumbar strain 9, 10

• Coronal imbalance: The levoconvex lumbar scoliosis with apical vertebral translation may be contributing to asymmetric hip loading and accelerated degeneration 10

Step 4: Surgical Evaluation and Timing

Indications for THA 1, 2:

• Radiographic evidence of hip OA (present in this patient)
• Refractory pain and disability despite conservative treatment
• Functional limitation affecting quality of life

Surgical considerations in this patient:

• Bilateral disease: Stage procedures if both hips require replacement. Consider addressing the more symptomatic side first (likely the left hip given "moderate to severe superior joint space narrowing") 2

• Lumbar scoliosis impact: The scoliosis affects spinopelvic mechanics and acetabular component positioning. Ensure careful preoperative planning for cup orientation 11

• Age consideration: At 73 years, she is an appropriate candidate. The case example of an 83-year-old successfully undergoing THA demonstrates feasibility in older adults 2

• Preoperative optimization: Address social support, arrange postoperative care, and provide preoperative education 2

Common Pitfalls to Avoid

1. Attributing all pain to the spine: Hip pathology can masquerade as back pain. The significant bilateral hip joint space narrowing is likely a major pain generator 8, 7

2. Delaying surgery inappropriately: If conservative measures fail and radiographic disease is advanced, prolonged delay reduces quality of life without benefit 1

3. Using hyaluronic acid injections: Strong evidence against their use in hip OA 2

4. Ignoring the hip-spine relationship: Correcting hip pathology may improve spinopelvic alignment and reduce back pain 8, 9, 10

5. Chronic opioid use: Should be avoided; not a long-term solution 6

Treatment Sequence Priority

If symptoms are mild-moderate: Implement comprehensive conservative management for 3-6 months

If symptoms are severe or refractory: Proceed with orthopedic surgical evaluation while continuing conservative measures for symptom control

The combination of advanced radiographic changes (bilateral medial and superior joint space narrowing with subchondral changes) and the patient's age strongly suggests she will ultimately benefit from surgical intervention, but the timing depends on symptom severity and functional impact 1, 2.