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Related Concept Videos

X-ray Imaging01:24

X-ray Imaging

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German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
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Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...
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Related Experiment Video

Updated: Oct 7, 2025

Treatment with Locking Intramedullary Nailing for Intertrochanteric Fracture of the Femur Utilizing a New Awl with a Distal Positioner
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Circular frames without x-ray - lessons learned regarding radiation exposure during tibial deformity correction from

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Summary

Ring fixators effectively treat complex fractures and non-unions, even without X-ray guidance in resource-limited settings. This study shows comparable outcomes to traditional methods, reducing radiation exposure.

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Area of Science:

  • Orthopedic surgery
  • Traumatology
  • Medical technology

Background:

  • Circular frames (ring fixators) are established treatments for complex fractures and non-unions.
  • Standard practice in developed healthcare systems often relies on intraoperative X-ray imaging for frame placement.
  • Resource-limited environments present challenges for advanced imaging availability.

Purpose of the Study:

  • To compare the efficacy and outcomes of ring fixator application for fractures and non-unions at an institution in Cambodia (CSC) versus a UK-based limb reconstruction surgery (LRS) unit.
  • To evaluate the feasibility of applying ring fixators without intraoperative X-ray guidance in austere settings.
  • To assess differences in union rates, time to union, and radiation exposure between the two cohorts.

Main Methods:

  • A retrospective cohort study comparing patients treated at CSC (Phnom Penh, Cambodia) and a UK LRS unit.
  • Data collected included demographics, diagnosis, frame type, pre- and post-operative deformity, construct alignment, and time to union or failure.
  • Patients treated at the UK LRS unit were randomly selected for comparison.

Main Results:

  • A total of 70 patients were included in the study.
  • Demographics and pre-operative deformity were similar between the CSC and UK cohorts.
  • Comparable outcomes were observed: union rate (70% vs. 82%), time to union (9.8 vs. 8.5 months), and significantly lower radiation exposure at CSC (mean 0 cGy/cm² vs. 74 cGy/cm²).

Conclusions:

  • Ring fixators are a viable and effective treatment for complex fractures and non-unions, even in austere environments lacking image intensifiers.
  • Application of ring fixators without X-ray guidance yields comparable clinical outcomes to methods utilizing such technology.
  • This approach offers a significant reduction in radiation exposure, making it a safe and practical option for resource-limited settings.