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Force Sensor Study

Biomechanical Analysis of Force Loadings During Suspension Microlaryngoscopy

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07434583
Enrollment
100
Registered
2026-02-25
Start date
2026-01-02
Completion date
2027-01-31
Last updated
2026-02-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Laryngeal Disease, Post-operative Pain, Tongue Injury

Brief summary

This research is to understand more about the forces that are involved on the tongue and other oropharyngeal structures during laryngeal surgery. This information will be used to determine if these forces can affect outcomes (pain, numbness, taste, etc) and whether factors such as procedure type, surgeon experience (i.e. resident, fellow, attending), and choice of surgical equipment affect these forces. This information may be used to reduce these forces and prevent these issues from happening during certain laryngeal surgeries. For the first 50 patients, force measurements will be taken and correlated to outcome measures . Surgeons will be blinded to the force measurements intra-operatively. For the next 50 patients, surgeons will be given force measurements in real-time intra-operatively allowing adjustments to be made. The impact of this adjustment on outcomes will be determined.

Interventions

PROCEDUREDirect laryngoscopy force modulation

Modification of applied force during direct laryngoscopy using real-time force sensor measurements.

PROCEDUREDirect laryngoscopy without force modulation

Patients will undergo direct laryngoscopy as is done in standard of care without active modulation of applied force

Sponsors

University of California, San Francisco
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* \>18 years old with * undergoing laryngeal surgery with direct laryngoscopy

Exclusion criteria

* Prior history of tongue dysfunction such as glossectomy (hemi or total) or hypoglossal nerve injury * Patient inability to follow up after initial procedure

Design outcomes

Primary

MeasureTime frameDescription
Short Form McGill Pain Questionnaire (SF-MPQ)1 day, 14 days, and 1 month post-operativelyThe SF-MPQ includes the following components: 15 descriptors: * 11 sensory, each rated 0=none, 1=mild, 2=moderate, 3=severe * 4 affective , each rated 0=none, 1=mild, 2=moderate, 3=severe. A Present Pain Intensity (PPI) scale (0=No Pain, 1=Mild, 2=Discomforting, 3=Distressing, 4=Horrible, 5=Excruciating) Visual Analogue Scale of average pain (VAS, 0-10 cm) - higher score is worse pain

Secondary

MeasureTime frameDescription
Tongue mobility1 month post-operativelyAssessment of changes in tongue mobility post-operatively. My physician report Tongue deviation is: 0 - absent 1 - present
Tongue sensation1 day, 14 days, and 1 month post-operativelyAssessment of changes in tongue sensation post-operatively, according to patient report: My tongue numbness is: 0 - absent 1. \- minimal 2. \- mild 3. \- moderatre 4. \- severe
Change in taste1 day, 14 days, 1 month post-operativelyAssessment of changes in taste post-operatively, according to patient report: My tongue numbness is: 0 - absent 1 - minimal 2 - mild 3 - moderatre 4 - severe

Countries

United States

Contacts

CONTACTRiley Jackson
riley.jackson@ucsf.edu6282526882
PRINCIPAL_INVESTIGATORTyler Crosby, MD

University of California, San Francisco

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026