Accuracy of Palpation Procedures for Locating the C1 Transverse Process and Masseter Muscle as Confirmed by Computed Tomography Images
- Publisher:
- Elsevier
- Publication Type:
- Journal Article
- Citation:
- J Manipulative Physiol Ther, 2022, 45, (5), pp. 337-345
- Issue Date:
- 2022-06-01
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| 1-s2.0-S0161475422001130-main.pdf | 911.43 kB |
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Objective The purpose of this study was to examine the accuracy of palpation methods for locating the transverse processes of the first cervical vertebra and masseter muscle using radiographic images as the gold standard method and the association between personal characteristics with the observed accuracy Methods This was a single blinded diagnostic accuracy study Ninety five participants 49 women 58 16 years of age were enrolled in this study A single examiner palpated the neck and face region of all participants to identify the transverse processes of the first cervical vertebra and masseter muscles bilaterally In sequence participants underwent a multislice computed tomography scan for assessment of the superimposed inner body structure Two radiologists assessed the computed tomography images using the same criteria and were blinded regarding each other s assessment and the anatomic landmarks under investigation The palpation accuracy was calculated as the proportion of the correctly identified landmarks in the studied sample The correlation of the palpation outcome correct 1 incorrect 0 with age sex male 1 female 0 and body mass index was investigated using the point biserial correlation coefficient Results The right and left transverse processes were correctly located in 76 80 and 81 85 participants respectively and bilaterally in 157 events 83 as evaluated by the consensus of the 2 radiologists The masseter muscles were correctly localized bilaterally in 95 of 95 100 participants Body mass showed statistical evidence of a weak positive correlation with the correct location of the transverse processes of the first cervical vertebra at the right body side r 219 95 confidence interval 0 018 0 403 P 033 Conclusion Palpation methods used in this study accurately identified the location of the first cervical vertebra spinous processes and the masseter muscles 2022
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