Diagnostic criteria and outcome measures in randomized clinical trials on carpal tunnel syndrome

a systematic review

Authors

Keywords:

Diagnosis, Carpal tunnel syndrome, Randomized clinical trials [publication type], Systematic Review [publication type]

Abstract

BACKGROUND: The diagnostic criteria for carpal tunnel syndrome (CTS) lack uniformity. Moreover, because CTS is a syndrome, there is no consensus as to which signs, symptoms, clinical and complementary tests are more reproducible and accurate for use in clinical research. This heterogeneity is reflected in clinical practice. Thus, establishing effective and comparable care protocols is difficult. OBJECTIVE: To identify the diagnostic criteria and outcome measures used in randomized clinical trials (RCTs) on CTS. DESING AND SETTING: Systematic review of randomized clinical trials carried out at the Federal University of São Paulo, São Paulo, Brazil. METHODS: We searched the Cochrane Library, PubMed, and Embase databases for RCTs with surgical intervention for CTS published between 2006 and 2019. Two investigators independently extracted relevant data on diagnosis and outcomes used in these studies. RESULTS: We identified 582 studies and 35 were systematically reviewed. The symptoms, paresthesia in the median nerve territory, nocturnal paresthesia, and special tests were the most widely used clinical diagnostic criteria. The most frequently assessed outcomes were symptoms of paresthesia in the median nerve territory and nocturnal paresthesia. CONCLUSION: The diagnostic criteria and outcome measures used in RCTs about CTS are heterogeneous, rendering comparison of studies difficult. Most studies use unstructured clinical criteria associated with ENMG for diagnosis. The Boston Questionnaire is the most frequently used main instrument to measure outcomes. REGISTRATION: PROSPERO (CRD42020150965- https://www.crd.york.ac.uk/prospero/display_record. php?RecordID=150965).

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Author Biographies

Rafael Luz Sousa, Universidade Federal de São Paulo

MD. Hand Surgeon and Master’s Student, Discipline of Hand and Upper Limb Surgery, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil.

Vinicius Ynoe de Moraes, Universidade Federal de São Paulo

MD, PhD. Hand Surgeon, Discipline of Hand and Upper Limb Surgery, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil; and Hand Surgeon, Hand Surgery Service, Hospital Alvorada Moema, United Health, São Paulo (SP), Brazil.

Alexandre Figueiredo Zobiole, Universidade Federal de São Paulo

MD. Orthopedist and Fellow of shoulder and elbow at the Sports Traumatology Center, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil.

Luis Renato Nakachima, Universidade Federal de São Paulo

MD, MSc, PhD. Adjunct Professor, Department of Orthopedics and Traumatology. Discipline of Hand and Upper Limb Surgery, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil.

João Carlos Belloti, Universidade Federal de São Paulo

MD, MSc, PhD. Adjunct Professor, Department of Orthopedics and Traumatology, Discipline of Hand and Upper Limb Surgery, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil.

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2023-10-05

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Sousa RL, Moraes VY de, Zobiole AF, Nakachima LR, Belloti JC. Diagnostic criteria and outcome measures in randomized clinical trials on carpal tunnel syndrome: a systematic review. Sao Paulo Med J [Internet]. 2023 Oct. 5 [cited 2025 May 22];141(6):1-12. Available from: https://periodicosapm.emnuvens.com.br/spmj/article/view/433

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