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Updated: Oct 26, 2025

A Spine Robotic-Assisted Navigation System for Pedicle Screw Placement
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[Development and clinical application of universal screwdriver].

Wu Chu1, Li-Jun Chen1, Fang-Zheng Xue1

  • 1Department of Orthopaedics, Chinaco Healthcare Corporation Limited International Hospital, Ningbo 315315, Zhejiang, China.

Zhongguo Gu Shang = China Journal of Orthopaedics and Traumatology
|July 28, 2021
PubMed
Summary

A novel universal screwdriver significantly reduces operation time and bleeding during femoral interlocking intramedullary nail surgery. This tool improves implantation accuracy and patient outcomes compared to standard methods.

Keywords:
Femoral fracturesFracture fixation, intramedullaryHip fracturesScrewdriver

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Area of Science:

  • Orthopedic surgery
  • Biomedical engineering
  • Surgical instrumentation

Background:

  • Femoral interlocking intramedullary nail (FIIN) surgery is common for intertrochanteric fractures.
  • Current methods for sealing the nail's central hole can be time-consuming and less accurate.
  • Improving efficiency and precision in FIIN surgery is crucial for patient recovery.

Purpose of the Study:

  • To develop and evaluate a universal screwdriver for sealing the femoral interlocking intramedullary nail.
  • To assess the impact of this new tool on operation time and implantation accuracy.
  • To compare the clinical outcomes of using the universal screwdriver versus ordinary screwdrivers.

Main Methods:

  • A prospective study involving 77 patients with intertrochanteric fractures undergoing FIIN surgery.
  • Patients were divided into a universal screwdriver group (39) and an ordinary screwdriver group (38).
  • Key metrics compared included blood loss, tail cap implantation time, one-time success rate, and postoperative efficacy.

Main Results:

  • The universal screwdriver group showed significantly reduced bleeding and implantation time (P<0.05).
  • One-time implantation success rate was 100% in the universal screwdriver group versus 75.4% in the ordinary group (P<0.05).
  • Postoperative efficacy scores were significantly better in the universal screwdriver group at follow-up (P<0.05).

Conclusions:

  • The universal screwdriver simplifies the sealing process for femoral intramedullary nail caps.
  • It effectively shortens operation time, reduces blood loss, and leads to satisfactory treatment outcomes.
  • This innovative tool enhances surgical efficiency and patient results in FIIN procedures.