Treatment of Nursemaid's Elbow (Radial Head Subluxation)
The hyperpronation (forced pronation) technique should be used as the first-line reduction maneuver for nursemaid's elbow in children, as it demonstrates superior success rates and causes less pain compared to the traditional supination-flexion technique.
Clinical Approach
Immediate Management
Nursemaid's elbow is primarily a clinical diagnosis that does not require imaging in typical presentations 1. The child presents with sudden onset of arm pain and refusal to use the affected limb, usually following a pulling injury or fall.
Reduction Technique Selection
The evidence strongly favors hyperpronation over supination-flexion:
- First attempt success rate: Hyperpronation achieves 85% success versus only 53% with supination-flexion 2
- Second attempt success: 50% with hyperpronation versus 28% with supination-flexion 2
- Crossover success: When supination-flexion fails, hyperpronation succeeds 100% of the time 2
- Pain profile: Both trials examining pain concluded hyperpronation is less painful than supination-flexion 3
A 2012 Cochrane review analyzing 379 children across four trials found that pronation resulted in significantly less failure than supination (risk ratio 0.45; 95% CI 0.28 to 0.73) 3. More recent data from 2026 involving 1,359 patients confirmed lower recurrence rates with hyperpronation compared to supination-flexion 4.
Hyperpronation Technique
This is a simple, single-movement maneuver:
- Grasp the child's elbow with one hand to stabilize it
- With the other hand, firmly pronate (turn palm down) the forearm while the elbow is flexed
- A palpable click may be felt, indicating successful reduction
- The child typically resumes normal arm use within 10-15 minutes
When to Consider Imaging
Imaging is NOT routinely needed for typical presentations 1. Consider radiography only when:
- History is atypical or unclear (not the classic pulling mechanism)
- Traumatic mechanism such as a fall is involved (53% of trauma cases receive x-rays versus only 11% of axial traction cases) 5
- Point tenderness over bone suggests possible fracture
- Reduction attempts fail
- Child does not resume normal function after successful reduction
Point-of-care ultrasound (POCUS) can identify radial head subluxation and significantly reduces length of stay (61 minutes with POCUS versus 103 minutes with radiography) 5, though this is not necessary for diagnosis in typical cases.
Common Pitfalls
- Avoid starting with supination-flexion: Despite being taught in many textbooks, this technique has lower success rates and causes more pain
- Don't over-image: The majority of children with classic presentation do not need x-rays
- Recognize recurrence risk: Overall recurrence rate is approximately 4.8%, but higher with right-sided injuries and when supination-flexion is used 4
- Patient demographics: Most common in children 0-3 years old (88.1%), with female predominance (61.2%) and left-sided involvement (63%) 4
Post-Reduction Care
After successful reduction, the child should demonstrate normal arm function within 10-15 minutes. No immobilization is required. Parent education about avoiding pulling on the child's arm is essential, as recurrence rates can be high (up to 94.9% in those with prior episodes) 6.