Related Experiment Video
Updated: May 22, 2026
10:09
Adjustable Stiffness, External Fixator for the Rat Femur Osteotomy and Segmental Bone Defect Models
Published on: October 9, 2014
[Design and clinical application of new type two-head automatic pressure external fixation (TAPEF)]
Yu-Xing Qin1, Hao Cai, Yong-Hui Huang
1Department of Orthopaedics, Hospital of Traditional Chinese Medicine of Danyang, Danyang 212300, Jiangsu, China. qinyx9692@163.com
Summary
A novel two-head automatic pressure external fixator effectively treats femur intertrochanteric fractures in elderly patients. This innovative device offers load-bearing and minimally invasive capabilities, leading to excellent healing and functional recovery.
Area of Science:
- Orthopedic surgery
- Biomedical engineering
Context:
- Intertrochanteric femur fractures are common, particularly in the elderly.
- Traditional fixation methods can have limitations in high-risk and senile patients.
Purpose:
- To design and evaluate a new two-head automatic pressure external fixator for treating intertrochanteric femur fractures.
- To assess the clinical efficacy and outcomes of this novel device.
Summary:
- A new two-head automatic pressure external fixator was designed based on unilateral angulated external fixator and Ilizarov techniques.
- 120 patients with intertrochanteric femur fractures were treated, with 116 followed up.
- The fixator demonstrated a high rate of fracture healing (100%) with an average healing time of 12 weeks and good hip joint function recovery.
Impact:
- The fixator is easy to apply and offers both load-bearing and minimally invasive functions.
- It represents an ideal treatment method for high-risk and senile patients with intertrochanteric femur fractures.
- Achieved excellent results in 106 out of 116 patients, indicating significant clinical benefit.
