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An Improved Mechanical Testing Method to Assess Bone-implant Anchorage

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"The chisel test"--a useful operative, technique for determining adequate, compression during arthrodesis.

Dishan Singh¹, Lee Parker, John Angel

¹Foot and Ankle Unit, Royal National Orthopaedic Hospital, Brockley Hill, Stanmore, Middlesex, HA7 4LP, United Kingdom. dishan.singh@rnoh.nhs.uk

Foot and Ankle Surgery : Official Journal of the European Society of Foot and Ankle Surgeons

|October 25, 2011

Summary

The Chisel test is a quick, intra-operative method to ensure rigid compression for optimal healing of foot and ankle fusions. This technique uses existing surgical tools for reliable assessment of arthrodesis fixation.

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A Probing Device for Quantitatively Measuring the Mechanical Properties of Soft Tissues during Arthroscopy

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Published on: May 1, 2020

Area of Science:

Orthopedic surgery
Surgical techniques
Arthrodesis fixation

Background:

Optimal healing of arthrodesis (joint fusion) requires rigid compression of prepared joint surfaces.
Current methods for assessing compression and rigidity during surgery can be time-consuming or require specialized equipment.

Purpose of the Study:

To introduce and describe a novel, simple intra-operative technique for assessing compression and rigidity in foot and ankle fusions.
To provide surgeons with a readily available method to confirm adequate fixation during arthrodesis.

Main Methods:

The study describes the "Chisel test," an intra-operative maneuver performed during foot and ankle arthrodesis.
This technique utilizes instruments commonly available during the procedure to evaluate the stability of the fixation.

Main Results:

The Chisel test is reported as a rapid, seconds-long assessment.
It allows surgeons to determine if adequate compression and rigidity have been achieved after fixation of foot and ankle fusions.

Conclusions:

The Chisel test is a practical and efficient method for intra-operative assessment of arthrodesis.
This technique can help ensure optimal conditions for bone healing in foot and ankle fusions using standard surgical tools.