Hyperpronation versus Supination-Flexion in Radial Head Subluxation Reduction: A Randomized Controlled Trial

Area of Science:

• Pediatric Orthopedics
• Musculoskeletal Injuries
• Emergency Medicine

Background:

• Radial head subluxation (RHS) is the most frequent upper extremity injury in children.
• Prompt reduction is crucial for effective treatment and pain management.

Purpose of the Study:

• To compare the success rates of the supination-flexion (SF) and hyperpronation (HP) techniques for reducing pediatric RHS.
• To evaluate and compare the pain levels associated with each reduction method.

Main Methods:

• A randomized study involving 154 pediatric patients with RHS.
• Patients were assigned to either the SF or HP reduction group.
• Success rates and pain scores were recorded, with alternate techniques used for initial failures.

Main Results:

• The supination-flexion (SF) technique demonstrated a higher success rate on the first attempt (76/77) compared to hyperpronation (HP) (72/77).
• The overall success rate for SF on the first attempt was statistically significant (p=0.043).
• No significant differences in pain levels were observed between the SF and HP groups post-reduction (p>0.05).

Conclusions:

• The SF technique offers a higher first-attempt success rate for reducing pediatric radial head subluxation.
• Both SF and HP methods result in comparable pain levels during reduction.
• Clinical decisions may favor SF for initial attempts due to its higher efficacy.