Relationship Between Mouth Opening and Masseter Elasticity in Oral Cancer
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: ultrasonographic imaging.
- Who it may be relevant to
- Registry conditions: Oral Cancer. Basic parameters: 20 years — 65 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Taiwan
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Association Between Maximum Mouth Opening and Masseter Muscle Elasticity in Oral Cancer Patients: A Study Using Sonographic Elastography
Overview
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
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.
Interventions
- Diagnostic test ultrasonographic imaging
masseter muscle elasticity
Primary outcome measures
- Masseter muscle elasticity [Time frame: Pre-intervention, 8 weeks post-intervention]
- Maximum interincisal mouth opening [Time frame: Pre-intervention, 8 weeks post-intervention]
Eligibility criteria
Inclusion criteria
- Newly diagnosed oral cancer patients who are scheduled to receive cancer-related treatments (e.g., oral cancer surgery, radiotherapy, chemotherapy, or chemoradiotherapy).
- Age between 20 and 65 years.
Exclusion criteria
- Could not communicate.
- Had any disorder that could influence movement performance.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Cohort
Study locations
Taiwan · 1 center
- National Taiwan University — Taipei
Publications
- 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. PMID 15936544
- 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. PMID 28493799
- 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. PMID 28188109
- 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. PMID 32435968
- 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. PMID 16484352
- 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. PMID 29492348
- 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. PMID 32779007
- 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. PMID 26624000
Identifiers
NCT: NCT06941727 · 202502031RIN