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Treatment with Locking Intramedullary Nailing for Intertrochanteric Fracture of the Femur Utilizing a New Awl with a Distal Positioner
Published on: June 6, 2025
Distal locking using an electromagnetic field-guided computer-based real-time system for orthopaedic trauma patients
Maxwell K Langfitt1, Jason J Halvorson, Aaron T Scott
1Department of Orthopaedic Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC 27157, USA.
Journal of Orthopaedic Trauma
|February 23, 2013
Summary
The electromagnetic field real-time system (EFRTS) is faster and more accurate for distal interlocking during intramedullary nailing than the freehand technique. This improved efficacy was observed in both junior and senior residents, enhancing surgical outcomes.
Area of Science:
- Orthopedic surgery
- Trauma care
- Surgical technology
Background:
- Distal interlocking is crucial for intramedullary nailing of femur and tibia fractures.
- Traditional freehand techniques can be time-consuming and prone to errors.
- Advancements in surgical navigation aim to improve precision and efficiency.
Purpose of the Study:
- To compare the efficacy of distal interlocking using the freehand technique versus an electromagnetic field real-time system (EFRTS).
- To evaluate procedural time and accuracy (screw misses) between the two techniques.
Main Methods:
- Prospective, randomized controlled trial at an academic trauma center.
- 24 femur and 24 tibia fractures treated with antegrade intramedullary nailing.
- Each patient received two distal interlocking screws: one freehand, one EFRTS.
Main Results:
- EFRTS was significantly faster for both time points and total procedural time (P < 0.0001).
- The number of interlocking screw misses was lower with EFRTS compared to the freehand technique (P = 0.02).
- EFRTS showed greater time-saving benefits for junior residents, with similar performance between junior and senior residents.
Conclusions:
- EFRTS demonstrates superior speed and accuracy for distal interlocking compared to the freehand method.
- The system reduces screw misses, potentially leading to better surgical outcomes.
- EFRTS offers significant advantages, particularly for less experienced surgeons.
