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Updated: Dec 10, 2025

Orthopedic Robot-Assisted Femoral Neck System in the Treatment of Femoral Neck Fracture

Orthopedic Robot-Assisted Femoral Neck System in the Treatment of Femoral Neck Fracture

Published on: March 3, 2023

Indirect visual guided fracture reduction robot based on external markers.

Zhuoxin Fu¹, Hao Sun¹, Xinyu Dong^2,3

¹School of Artificial Intelligence and Data Science, Hebei University of Technology, Tiajin, China.

The International Journal of Medical Robotics + Computer Assisted Surgery : MRCAS

|September 4, 2020

Summary

This summary is machine-generated.

This study introduces a novel robotic system for fracture reduction surgery, improving accuracy and reducing surgeon strain. The system minimizes radiation exposure and avoids fragment collision, enhancing patient and surgeon safety.

Keywords:

fracture reduction indirect visual servo parallel robot trajectory planning

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Last Updated: Dec 10, 2025

Orthopedic Robot-Assisted Femoral Neck System in the Treatment of Femoral Neck Fracture

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Published on: March 3, 2023

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Area of Science:

Orthopedic surgery
Robotics in medicine
Medical imaging

Background:

Traditional fracture reduction lacks accuracy and is physically demanding for surgeons.
Radiographic monitoring improves accuracy but poses radiation risks to patients and surgeons.

Purpose of the Study:

To develop and evaluate a novel robotic system for accurate and safe fracture reduction surgery.
To minimize radiation exposure and surgeon physical exertion during fracture repair.

Main Methods:

A parallel robot system was employed for fracture reduction.
Binocular cameras tracked external markers to determine fragment position and orientation.
Position-based visual servoing controlled the robot for precise fracture alignment.

Main Results:

Experiments on virtual and model bone cases demonstrated successful fracture reduction without collision.
Achieved high accuracy with angulation error of 3.3° ± 1.8° and axial rotation error of 0.8° ± 0.3°.
Transverse stagger and axial errors were minimal (2 ± 0.5 mm and 2.5 ± 1 mm, respectively), with complete deformity correction.

Conclusions:

The proposed robotic solution offers accurate fracture reduction.
It significantly reduces the need for intraoperative radiography, minimizing radiation exposure.
The system effectively prevents collisions between bone fragments during the procedure.