Medications for Bone Fracture Pain

1. Non-Opioid Analgesics (First-Line)

Acetaminophen (Paracetamol)

• Used alone for mild-to-moderate pain, or combined with other agents for moderate-to-severe pain
• Standard oral dose: 500-1000 mg every 6-8 hours (max 4 g/day)
• Also available IV (used in post-operative fracture care in many countries as primary analgesic)
• Can be used long-term (Week 4+ as sole analgesic after fractures heal)
• Has fewer GI side effects than NSAIDs - Rosen's Emergency Medicine

NSAIDs (e.g., Ibuprofen, Ketorolac, Naproxen)

• Effective for musculoskeletal pain by reducing inflammation
• Ibuprofen: 400-600 mg PO every 8 hours (typically 5 days)
• Ketorolac (IV/IM): commonly used for acute musculoskeletal pain in the ED; recent literature supports use even with fractures without increased nonunion risk
• Caution: There has been historical concern about NSAIDs impairing bone healing (nonunion), but current evidence - including post-operative fracture patients - does not support an increased nonunion risk with short-term use per [Rockwood and Green's Fractures in Adults, 10th ed. 2025]

2. Opioid Analgesics

• Opioids should be tapered off as healing progresses - transition to non-opioids by week 4
• PCA (Patient-Controlled Analgesia) pumps (IV opioids) are used for hospitalized patients with severe fractures, allowing low-dose self-administration with faster onset
• Short course (2-3 days) of oral opioids may be added for severe ankle fracture pain, though generally not required - Rosen's Emergency Medicine

3. Adjuvant Agents

Gabapentin

• Useful in the acute post-fracture period to reduce central sensitization
• Typical dose: 100 mg PO TID x 5 days in the first week after a musculoskeletal procedure
• Helps reduce overall opioid consumption - Rockwood and Green's Fractures in Adults

Ketamine (Subdissociative)

• Subdissociative (low-dose) ketamine has shown analgesic efficacy comparable to intranasal fentanyl or IV morphine for fracture pain in the Emergency Department
• Used IV in the ED for acute fracture presentations
• Reduces pain sensitization and "pain memory" - Tintinalli's Emergency Medicine

Calcitonin

• Has analgesic effects on bone pain in osteoporosis and vertebral fractures (acute pain <10 days)
• Benefit seen in the acute phase; less effective for chronic bone pain (>3 months) - Rheumatology, 2-Volume Set (Elsevier)

4. Regional/Local Anesthesia (Non-Systemic)

• Peripheral nerve blocks: Provide targeted pain relief with fewer systemic CNS side effects (nausea, sedation). Common in orthopaedic surgery for arm and leg fractures
• Femoral nerve block: Used for hip/femur fractures (risk: quadriceps weakness and falls)
• Serratus anterior plane block / Erector spinae plane block: Shown effective for rib fractures (supported by a 2026 meta-analysis in Clinical Journal of Pain)
• Epidural analgesia: For major fractures (thoracic/lumbar spine, pelvis, rib fractures)
• Liposomal bupivacaine: Intraoperative injection for extended postoperative pain control
• Local anesthetics used: lidocaine, mepivacaine, bupivacaine, ropivacaine - Rockwood and Green's Fractures in Adults, 10th ed.

Preferred Multimodal Protocol Summary (From Rockwood & Green, 2025)

• Week 1: Hydrocodone/acetaminophen + ibuprofen 600 mg q8h + gabapentin 100 mg TID
• Weeks 2-3: NSAID PRN + tramadol or low-dose hydrocodone PRN (tapering)
• Week 4+: Acetaminophen and NSAID PRN only (no opioids)

Important Considerations

• PRICE therapy (Protection, Rest, Ice, Compression, Elevation) alongside medications reduces swelling and pain
• Fracture immobilization itself reduces pain significantly - medications supplement, not replace, immobilization
• All opioid prescriptions are subject to state prescription drug monitoring programs in the US
• Medication choice should be individualized based on patient age, renal/hepatic function, and comorbidities

• Rockwood and Green's Fractures in Adults, 10th ed. 2025 - comprehensive pain management tables
• Tintinalli's Emergency Medicine - subdissociative ketamine for fracture pain
• Rosen's Emergency Medicine - first-line analgesic recommendations
• Recent evidence: Rib fracture nerve block meta-analysis (Lin et al., 2026) | Rib fracture pain management systematic review (Hammal et al., 2024)

Important clinical note: Pain in the last (lowest) rib after an accident with swelling and severe pain on movement strongly suggests a rib fracture or contusion. This needs an X-ray or CT scan first to confirm the diagnosis and rule out complications (pneumothorax, internal organ injury to liver/spleen/kidney which sit directly under the lower ribs). Please see a doctor urgently before starting any medications.

⚠️ URGENT: See a Doctor First

• Difficulty breathing or shortness of breath
• Dizziness or feeling faint
• Abdominal pain spreading inward
• Shoulder tip pain (sign of internal bleeding)
• Worsening pain after rest

Medications for Lower Rib Fracture Pain (Once Evaluated by a Doctor)

Step 1 - Non-Opioid First Line

Step 2 - If Pain is Severe (Short-Course Opioid)

• Opioids are tapered off quickly - do NOT take beyond 1-2 weeks
• Never combine opioids with alcohol or sedatives

Step 3 - Adjuvant Medications (Add-on Drugs)

Step 4 - Regional Nerve Block (Hospital Procedure)

• Intercostal nerve block - local anesthetic injected around the rib nerve, gives hours of relief
• Thoracic paravertebral block (TPVB) - >90% success rate, improves pain scores and breathing function, used for unilateral rib fractures
• Thoracic epidural analgesia (TEA) - most effective for severe multi-rib fractures; strongly recommended by the Eastern Association for the Surgery of Trauma for severe rib fracture pain

Home Care While Awaiting Doctor

1. Ice pack wrapped in cloth - apply to swollen area 15-20 min every 2 hours (reduces swelling)
2. Rest in a semi-upright position (lying flat increases pain)
3. Breathe deeply every hour even though it hurts - shallow breathing risks pneumonia
4. Do NOT strap or tightly bandage the chest (old practice - actually dangerous, restricts breathing)
5. Take paracetamol 1000 mg if available while awaiting care

Red Flag Symptoms - Go to Emergency NOW

• Breathing difficulty or worsening breathlessness
• Coughing blood
• Rapid heartbeat or dizziness
• Severe abdominal pain
• Chest pain that spreads to the shoulder or arm

Disclaimer: This information is for educational purposes. It is not a substitute for professional medical evaluation. A doctor must examine you, order imaging, and prescribe appropriate medications for your specific situation.