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Machines: Problem Solving I

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A toggle clamp is a mechanical device commonly used for holding and clamping objects in various applications, such as woodworking, metalworking, and assembly operations. Consider a toggle clamp subjected to a force of 200 N at the handle. The vertical clamping force can be calculated, provided the dimensions of the toggle clamp are known.
The toggle clamp system is a machine structure consisting of movable, pin-connected multi-force members that form a stabilized system to transmit forces. The...

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Updated: Jun 20, 2026

Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device

Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device

Published on: November 8, 2024

Universal Clamp system in thoracolumbar spinal fixation: technical note.

Roberto Gazzeri¹, Andrea Faiola, Marcelo Galarza

¹Department of Neurosurgery, San Giovanni - Addolorata Hospital, Rome, Italy. robertogazzeri@gmail.com

Acta Neurochirurgica

|September 4, 2009

Summary

The Universal Clamp offers a safe and effective alternative for thoracolumbar spinal fixation, showing promising results in a 12-month follow-up study for various spinal disorders.

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A Novel Vertebral Stabilization Method for Producing Contusive Spinal Cord Injury

A Novel Vertebral Stabilization Method for Producing Contusive Spinal Cord Injury

Published on: January 5, 2015

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Last Updated: Jun 20, 2026

Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device

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Published on: November 8, 2024

A Novel Vertebral Stabilization Method for Producing Contusive Spinal Cord Injury

A Novel Vertebral Stabilization Method for Producing Contusive Spinal Cord Injury

Published on: January 5, 2015

Area of Science:

Spinal Surgery
Orthopedic Devices
Biomaterials

Background:

The Universal Clamp, a polyester band and titanium clamp system, is a novel alternative to traditional screws and hooks for thoracolumbar spinal diseases.
Limited data exists on the efficacy and safety of this posterior fixation and fusion technique.

Purpose of the Study:

To prospectively evaluate the effectiveness and safety of the Universal Clamp system for posterior spinal fixation and fusion in patients with thoracolumbar disorders.

Main Methods:

A cohort of 18 patients with thoracolumbar disorders underwent surgical treatment using Universal Clamps.
Procedures included fixation for traumatic fractures, degenerative stenosis, and kyphotic stenosis.
Seventeen patients received hybrid constructs (screws and clamps), one received clamps only; intraoperative monitoring was performed.

Main Results:

No neurological adverse events or implant failures (rod breakage, clamp loosening) were observed during 12-month follow-up.
One patient experienced a manageable infection that resolved with antibiotics without implant removal.
The Universal Clamp demonstrated favorable characteristics, including reduced spinal canal occupancy and avoidance of imaging artifacts.

Conclusions:

The Universal Clamp system is a safe and effective technique for stabilizing thoracolumbar spinal disorders.
Its flexible polyester band design minimizes the risk of spinal cord trauma and offers advantages over traditional sublaminar wires.
This preliminary study supports the use of Universal Clamps as a viable option in spinal instrumentation.