Sternocleidomastoid size and upper trapezius muscle thickness in congenital torticollis patients A retrospective observational studyopen access
- Authors
- Kwon, Dong Rak; Kim, Yoontae
- Issue Date
- Dec-2021
- Publisher
- Lippincott Williams & Wilkins Ltd.
- Keywords
- accessory nerve; sternocleidomastoid muscle; torticollis; upper trapezius muscle
- Citation
- Medicine, v.100, no.52, pp 1 - 6
- Pages
- 6
- Journal Title
- Medicine
- Volume
- 100
- Number
- 52
- Start Page
- 1
- End Page
- 6
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/20204
- DOI
- 10.1097/MD.0000000000028466
- ISSN
- 0025-7974
1536-5964
- Abstract
- The purpose of this study was to investigate the upper trapezius muscle thickness (UTMT) in congenital muscular torticollis (CMT) patients and determine the correlation among sternocleidomastoid muscle thickness (SCMT), accessory nerve (AN) cross-sectional area (CSA), and UTMT in CMT. This retrospective study consisted of 2 participant groups: Group 1 (SCM mass CMT, n = 20) and Group 2 (Postural CMT, n = 22). For both groups, B-mode ultrasound was performed by a physiatrist to measure the SCMT and UTMT and calculate the CSA of the AN. The correlation among SCMT, CSA of the AN, and UTMT in both groups was evaluated. The between-group comparison revealed that Group 1 had significantly greater SCMT, UTMT, and CSA of the AN on the affected side than Group 2 (P < .05). The intragroup comparison between the affected and unaffected sides also revealed that, in Group 1, the SCMT, UTMT, and CSA of the AN were significantly higher on the affected side than on the unaffected side (P < .05), whereas no significant differences were observed in Group 2. In Group 1, a positive correlation (r = 0.55) was observed between the UTMT and CSA of the AN on the affected side, but not observed between the SCMT and CSA of the AN. The findings of the study indicate that sternocleidomastoid muscle size may impact the thickness of the upper trapezius muscle via the accessory nerve in patients with congenital torticollis.
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