Lengthening of the humerus for upper extremity limb length discrepancy

Area of Science:

• Orthopedic surgery
• Pediatric orthopedics
• Limb reconstruction

Background:

• Limb length discrepancies can significantly impact a child's physical development and function.
• Proximal humeral growth arrest presents a specific challenge for limb length equalization.

Observation:

• A 12-year-old male presented with a 7.7 cm limb length discrepancy due to proximal humeral growth arrest.
• The Wagner technique was employed for humeral lengthening, achieving 69 mm of bone growth.

Findings:

• The procedure did not require bone grafting.
• Potential complications, such as radial nerve injury, were managed.
• Temporary loss of elbow extension occurred but was expected to resolve.

Implications:

• Humeral lengthening is a viable surgical option for significant upper extremity limb length discrepancies in adolescents.
• Careful surgical technique is crucial to protect the radial nerve.
• Full recovery of elbow function can be anticipated in this age group.