A 68-year-old man with severe COPD and heart failure presents with a minimally displaced intracapsular neck of femur fracture (Garden II) sustained 8 hours ago. He is deemed unfit for surgery due to poor cardiopulmonary reserve. His pain is controlled with analgesics and he is hemodynamically stable. What is the most appropriate next step in management?

Explanation

## Management of Undisplaced Intracapsular Neck of Femur Fracture in Medically Unfit Patient ### Classification and Risk Stratification **Key Point:** Garden I–II fractures are undisplaced and have a lower risk of avascular necrosis compared to displaced fractures. In medically unfit patients, the risk–benefit ratio of surgery must be carefully weighed. ### Fracture Type Assessment | Garden Grade | Displacement | AVN Risk | Surgical Indication | |--------------|--------------|----------|---------------------| | **I–II** | Undisplaced | Low (5–10%) | Consider conservative care in unfit patients | | **III–IV** | Displaced | High (30–50%) | Urgent surgery regardless of comorbidities | ### Why Conservative Management in This Case? 1. **Undisplaced fracture (Garden II):** Low inherent risk of non-union and AVN; can heal with non-operative management. 2. **Severe comorbidities:** COPD and heart failure increase perioperative morbidity and mortality; anesthetic risk is prohibitively high. 3. **Pain control achieved:** Analgesics are effective; patient is hemodynamically stable. 4. **Early mobilization:** Even with bed rest initially, early mobilization as tolerated reduces complications (DVT, pneumonia, pressure ulcers). **High-Yield:** In medically unfit patients with undisplaced intracapsular fractures, conservative management with adequate analgesia and early mobilization is acceptable and often preferred to avoid surgical risk. **Clinical Pearl:** The goal is to maintain comfort, prevent complications of immobility, and achieve functional independence. Many undisplaced fractures unite with conservative care, though healing may take 12–16 weeks. **Mnemonic:** **UNFIT-UNDISPLACED** — Unfit patients with Undisplaced fractures are candidates for conservative care; Fixation is deferred unless displacement occurs or pain control fails. ### Why Not Other Options? - **Immediate CRIF under spinal anesthesia:** Even spinal anesthesia carries significant risk in a patient with severe COPD and heart failure. The risk of perioperative complications (hypoxia, cardiac decompensation, death) outweighs the benefit of operative fixation for an undisplaced fracture. - **Skeletal traction followed by delayed surgery:** Traction is uncomfortable, prolongs immobility, and delays mobilization. If surgery is to be avoided, traction offers no advantage over conservative care. - **Percutaneous pinning under local anesthesia:** Still carries systemic risks (pain, stress, positioning complications) and is not indicated for undisplaced fractures that can heal conservatively. [cite:Campbell's Operative Orthopaedics Ch 56; Rockwood and Green's Fractures in Adults Ch 47]