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Type: Artigo de periódico
Title: Low Sensitivity Of Three-phase Bone Scintigraphy For The Diagnosis Of Repetitive Strain Injury.
Author: Amorim, Bárbara Juarez
Etchebehere, Elba Cristina Sá de Camargo
Dalla Torre, Graciella
Lima, Mariana da Cunha Lopes de
Santos, Allan de Oliveira
Ramos, Celso Darío
Gonzalez, Luiz Ricardo
Oliveira, José Inácio
Camargo, Edwaldo Eduardo
Abstract: The diagnosis of repetitive strain injury (RSI) is subjective and solely based on clinical signs and physical examination. The aim of this paper was to assess the usefulness of three-phase bone scintigraphy (TPBS) in diagnosing RSI. Prospective study at the Division of Nuclear Medicine, Department of Radiology, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP). Seventy-three patients (mean age 31.2 years; 47 males) with clinical suspicion of RSI in the upper limbs were studied. A total of 127 joints with suspicion of RSI were studied. The shoulders, elbows and wrists were analyzed semi-quantitatively, using the shafts of the humeri and ulnae as references. The results were compared with a control group of 40 normal individuals. The patients signs and symptoms were used as the gold standard for calculating the probabilities. From visual analysis, abnormalities were observed in the flow phase for four joints, in the blood pool phase for 11 joints and in the delayed images for 26 joints. Visual analysis of the joints of the control group did not show any abnormalities. Semi-quantitative analysis showed that most of the patients joint ratios were normal. The exceptions were the wrists of patients with left-sided RSI (p = 0.0216). However, the sensitivity (9%) and accuracy (41%) were very low. TPBS with semi-quantitative analysis has very low sensitivity and accuracy in the detection of RSI abnormalities in the upper limbs.
Subject: Adult
Case-control Studies
Cumulative Trauma Disorders
Middle Aged
Prospective Studies
Sensitivity And Specificity
Statistics, Nonparametric
Technetium Tc 99m Medronate
Rights: aberto
Identifier DOI: 
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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