Relationship Between Mouth Opening and Masseter Elasticity in Oral Cancer

NCT ID: NCT06941727

Last Updated: 2025-05-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

10 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-05-08

Study Completion Date

2026-02-28

Brief Summary

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The study aims to assess the hardness of masticatory muscles in post-surgical oral cancer patients using strain elastography ultrasound, calculating the masseter elasticity index and exploring its association with maximum interincisal mouth opening. Furthermore, the study incorporates exercise training to analyze whether changes in masseter hardness can serve as an objective indicator for predicting the improvement of trismus.

Detailed Description

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This study aims to evaluate the hardness of masticatory muscles in patients who have undergone surgery for oral cancer, using strain elastography ultrasound. Specifically, the research focuses on measuring the elasticity of the masseter muscle by calculating the masseter elasticity index (MEI) and analyzing its correlation with maximum interincisal mouth opening (MIO). Since trismus, or restricted mouth opening, is a common post-surgical complication affecting oral function and quality of life, understanding the relationship between muscle elasticity and jaw mobility is crucial. Additionally, the study incorporates a structured exercise training program designed to improve jaw function in these patients. By monitoring changes in masseter muscle hardness before and after the intervention, the research aims to determine whether variations in muscle elasticity can serve as an objective indicator for predicting improvements in trismus.

Conditions

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Oral Cancer

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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ultrasonographic imaging

masseter muscle elasticity

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

1. Newly diagnosed oral cancer patients who are scheduled to receive cancer-related treatments (e.g., oral cancer surgery, radiotherapy, chemotherapy, or chemoradiotherapy).
2. Age between 20 and 65 years.

Exclusion Criteria

1. Could not communicate.
2. Had any disorder that could influence movement performance.
Minimum Eligible Age

20 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Taiwan University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Yueh-Hsia Chen

Role: PRINCIPAL_INVESTIGATOR

National Taiwan University, College of Medicine

Central Contacts

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Yueh-Hsia Chen, PhD

Role: CONTACT

+886-2-33668133

References

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Yeh SA, Tang Y, Lui CC, Huang YJ, Huang EY. Treatment outcomes and late complications of 849 patients with nasopharyngeal carcinoma treated with radiotherapy alone. Int J Radiat Oncol Biol Phys. 2005 Jul 1;62(3):672-9. doi: 10.1016/j.ijrobp.2004.11.002.

Reference Type BACKGROUND
PMID: 15936544 (View on PubMed)

Taljanovic MS, Gimber LH, Becker GW, Latt LD, Klauser AS, Melville DM, Gao L, Witte RS. Shear-Wave Elastography: Basic Physics and Musculoskeletal Applications. Radiographics. 2017 May-Jun;37(3):855-870. doi: 10.1148/rg.2017160116.

Reference Type BACKGROUND
PMID: 28493799 (View on PubMed)

Takashima M, Arai Y, Kawamura A, Hayashi T, Takagi R. Quantitative evaluation of masseter muscle stiffness in patients with temporomandibular disorders using shear wave elastography. J Prosthodont Res. 2017 Oct;61(4):432-438. doi: 10.1016/j.jpor.2017.01.003. Epub 2017 Feb 7.

Reference Type BACKGROUND
PMID: 28188109 (View on PubMed)

Karlsson O, Karlsson T, Pauli N, Andrell P, Finizia C. Jaw exercise therapy for the treatment of trismus in head and neck Cancer: a prospective three-year follow-up study. Support Care Cancer. 2021 Jul;29(7):3793-3800. doi: 10.1007/s00520-020-05517-7. Epub 2020 Nov 24.

Reference Type BACKGROUND
PMID: 32435968 (View on PubMed)

Itoh A, Ueno E, Tohno E, Kamma H, Takahashi H, Shiina T, Yamakawa M, Matsumura T. Breast disease: clinical application of US elastography for diagnosis. Radiology. 2006 May;239(2):341-50. doi: 10.1148/radiol.2391041676. Epub 2006 Feb 16.

Reference Type BACKGROUND
PMID: 16484352 (View on PubMed)

Chen YH, Liang WA, Hsu CY, Guo SL, Lien SH, Tseng HJ, Chao YH. Functional outcomes and quality of life after a 6-month early intervention program for oral cancer survivors: a single-arm clinical trial. PeerJ. 2018 Feb 21;6:e4419. doi: 10.7717/peerj.4419. eCollection 2018.

Reference Type BACKGROUND
PMID: 29492348 (View on PubMed)

Cardoso RC, Kamal M, Zaveri J, Chambers MS, Gunn GB, Fuller CD, Lai SY, Mott FE, McMillan H, Hutcheson KA. Self-Reported Trismus: prevalence, severity and impact on quality of life in oropharyngeal cancer survivorship: a cross-sectional survey report from a comprehensive cancer center. Support Care Cancer. 2021 Apr;29(4):1825-1835. doi: 10.1007/s00520-020-05630-7. Epub 2020 Aug 11.

Reference Type BACKGROUND
PMID: 32779007 (View on PubMed)

Ariji Y, Nakayama M, Nishiyama W, Nozawa M, Ariji E. Shear-wave sonoelastography for assessing masseter muscle hardness in comparison with strain sonoelastography: study with phantoms and healthy volunteers. Dentomaxillofac Radiol. 2016;45(2):20150251. doi: 10.1259/dmfr.20150251. Epub 2015 Dec 1.

Reference Type BACKGROUND
PMID: 26624000 (View on PubMed)

Other Identifiers

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202502031RIN

Identifier Type: -

Identifier Source: org_study_id

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