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Diagnosis Of The Achilles Insertional Tendinopathies By Algometry

Diagnosis Of The Achilles Insertional Tendinopathies By Algometry

Nacime Salomao Barbachan Mansur, MD, PhD, UNITED STATES Vinicius Felipe Pereira, MD, BRAZIL Andre Fukunishi Fukunishi Yamada, PhD, BRAZIL Fabio Teruo Matsunaga, PhD, BRAZIL Marcel J. S. Tamaoki, MD, PhD, BRAZIL

Department of Orthopedics and Traumatology, Paulista School of Medicine, Federal University of Sao Paulo, São Paulo, SP, BRAZIL


2021 Congress   ePoster Presentation     rating (1)

 

Anatomic Location

Anatomic Structure

Diagnosis Method

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Summary: The algometry proved to be a simple and reliable method for diagnosing AIT. Values for PT under 4.08kg/f were found predictors of the disease.


Introduction

Diagnosis of Achilles insertional tendinopathies (AIT) is based on pain by tendon palpation. However, there is no consensus or standard regarding the amount of force to be used during the evaluation. The algometry is a mechanism of measuring the pressure applied in a specific region and can be a technique for determining diagnosis values.

Goal:
To determine a cut-off value for Pain Threshold (PT) in the assessment of AIT.

Design
This is a prospective case-control study of diagnostic accuracy, to develop a diagnostic criterion.

Methods

Forty asymptomatic individuals and forty patients with insertional Achilles tendinopathy, matched by age and sex, were evaluated, and submitted to algometry for PT and for Visual Analogical Scale (VAS) levels with 3kg/f at the insertion of the calcaneal tendon by two different evaluators. Inter-observer reproducibility was accessed through the interclass correlation index (ICC). Sensitivity and specificity calculation of PT and of VAS were calculated and plotted on a ROC (Receiver Operator Characteristic) curve.

Results

The lowest ICC found was 0.788. Regarding the diagnosis through TP, the 4.08 kg/f mark showed the best relation between sensitivity and specificity (92.5% and 92.5%, respectively). Algometry values lower than 4.08 were considered positive for disease. For the diagnosis of TIA through VAS with 3kg/f, the value of 2.98 was determined (sensitivity of 92.5% and specificity of 97.5%).

Discussion

The algometry showed to be a simple and reliable method for diagnosing AIT. Values for PT under 4.08kg/f were found predictors of the disease.


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