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An Instrument-Assisted Coracoid Pain Test: An Exploratory Diagnostic Accuracy Study

Author

Listed:
  • Michel GCAM Mertens

    (Research Group MOVANT, Department of Rehabilitation Sciences and Physiotherapy (REVAKI), University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
    Pain in Motion International Research Group, www.paininmotion.be , Belgium.)

  • Mira Meeus

    (Research Group MOVANT, Department of Rehabilitation Sciences and Physiotherapy (REVAKI), University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
    Department of Rehabilitation Sciences and Physiotherapy, Ghent University, C. Heymanslaan 10, 9000 Ghent, Belgium
    Pain in Motion International Research Group, www.paininmotion.be , Belgium.)

  • Louise Pieters

    (Research Group MOVANT, Department of Rehabilitation Sciences and Physiotherapy (REVAKI), University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium)

  • Mercè Balasch-Bernat

    (Physiotherapy in Motion, Multi-Specialty Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, C/Gasco Oliag 5, 46010 Valencia, Spain)

  • Lirios Dueñas

    (Physiotherapy in Motion, Multi-Specialty Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, C/Gasco Oliag 5, 46010 Valencia, Spain)

  • Olivier Verborgt

    (Research Group MOVANT, Department of Rehabilitation Sciences and Physiotherapy (REVAKI), University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
    Department of Orthopedic Surgery and Traumatology, AZ Monica, Harmoniestraat 68, 2018 Antwerp, Belgium)

  • Filip Struyf

    (Research Group MOVANT, Department of Rehabilitation Sciences and Physiotherapy (REVAKI), University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium)

Abstract

The coracoid pain test (CPT) could contribute to the diagnosis of frozen shoulder (FS) with palpation. However, due to assessor performance these values might be unreliable. Therefore, the aim was to explore the diagnostic accuracy of an instrument-assisted CPT and two alternative approaches (pain severity and side comparison) for assistance in the diagnosis of FS. Patients with FS and healthy age-matched controls were recruited. All participants underwent the instrument-assisted CPT on both shoulders with a pressure algometer. Sensitivity, specificity, and likelihood ratios were determined for the three approaches. In total, 35 patients with FS and 35 healthy participants were included. The original approach was positive in eight participants (11.4%), with only sufficient specificity to draw a conclusion. The pain severity approach was positive in 31 participants (44.3%) with sufficient sensitivity, specificity and likelihood ratios. The side comparison approach was positive in 10 participants (14.3%) with excellent specificity and positive likelihood ratio. The specificity of the instrument-assisted CPT can be used to increase the probability of FS with both the original and alternative approaches. Only the pain severity approach can draw a conclusion with a negative test result. This study should be repeated with a cross-sectional design to strengthen and confirm the conclusions.

Suggested Citation

  • Michel GCAM Mertens & Mira Meeus & Louise Pieters & Mercè Balasch-Bernat & Lirios Dueñas & Olivier Verborgt & Filip Struyf, 2022. "An Instrument-Assisted Coracoid Pain Test: An Exploratory Diagnostic Accuracy Study," IJERPH, MDPI, vol. 19(19), pages 1-11, October.
  • Handle: RePEc:gam:jijerp:v:19:y:2022:i:19:p:12735-:d:933911
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