Overview
Patient with atraumatic knee pain without a large knee effusion on x-ray will be randomized to receive either a genicular nerve block (GNB) or standard of care in the emergency department.
Eligibility
Inclusion Criteria:
- Atraumatic knee pain
- >17 years age
- X-ray of the knee obtained in the ED
- Initial pain score (numeric rating scale) 5-10
Exclusion Criteria:
- Fracture or dislocation on x-ray
- large knee joint effusion identified on x-ray
- allergy or contraindication to local anesthetics
- History of local anesthetic systemic toxicity after receiving local anesthetics
- Pregnancy
- Incarcerated
- History of knee replacement of affected knee
- Concern for septic joint
- Overlying cellulitis
- Hemodynamic instability
- Altered mental status or inability to consent for procedure.