Trial · NCT07892248
Smartphone Video-Based AI Gait Analysis Reports to Support Remote Follow-up After Total Knee Arthroplasty
NCT07892248, Enrolling by invitation, Shanghai Jiao Tong University School of Medicine
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Smartphone Video-Based AI Gait Analysis Reports to Support Remote Follow-up After Total Knee Arthroplasty. Trials, record NCT07892248. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07892248
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Smartphone Video-Based AI Gait Analysis Reports to Support Remote Follow-up After Total Knee Arthroplasty
- NCT number
- NCT07892248
- Status
- Enrolling by invitation
- Enrollment
- 36 participants, estimated
- Lead sponsor
- Shanghai Jiao Tong University School of Medicine
- Conditions
- Total Knee Arthroplasty
- Interventions
- Smartphone Video-Based AI Gait Analysis, video recorded on a mobile phone (assessed by doctors)
- First posted
- 2026-10-23
- Last updated
- 2026-10-23
Source ClinicalTrials.gov
Registered outcomes8
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Number and proportion of physician-case remote management recommendations classified as clinically acceptable compared with the in-person reference assessment | 6 and 12 weeks after TKA | At postoperative weeks 6 and 12, participating physicians review deidentified remote follow-up cases and provide a management recommendation. An independent senior orthopedic physician who is not involved in the remote case evaluation determines the clinically acceptable management option or range of options for each patient-timepoint case based on the concurrent in-person clinical assessment and available imaging information. Each physician-case recommendation is classified as clinically acceptable if it falls within the reference range and clinically unacceptable otherwise. The outcome is reported as the number and proportion of clinically acceptable physician-case evaluations among all valid evaluations in each study condition. |
| Secondary | Number and proportion of physician recovery-status assessments agreeing with the concurrent in-person reference assessment | 6 and 12 weeks after TKA | Physicians classify the patient's recovery status as improved, stable, worsened, or unable to determine. For each patient-timepoint case, the physician's recovery-status assessment is compared with the recovery status established from the concurrent in-person clinical assessment. The outcome is reported as the number and proportion of physician-case assessments that agree with the in-person reference assessment in each study condition. |
| Secondary | Mean physician confidence score for remote management recommendations rated on a 0-100 scale | 6 and 12 weeks after TKA | After providing a management recommendation for each case, physicians rate their confidence that the recommendation would be supported by the concurrent in-person clinical assessment on a scale from 0 to 100, with higher scores indicating greater confidence. The outcome is summarized as the mean confidence score for physician-case evaluations in each study condition. |
| Secondary | Number and proportion of physician-case assessments in which recovery status cannot be determined | 6 and 12 weeks after TKA | Physicians classify recovery status as improved, stable, worsened, or unable to determine. The outcome is reported as the number and proportion of valid physician-case evaluations for which "unable to determine" is selected in each study condition. |
| Secondary | Number and proportion of physician-case assessments in which a management recommendation cannot be provided because of insufficient information | 6 and 12 weeks after TKA | For each case, physicians provide a management recommendation or indicate that a recommendation cannot be made because the available information is insufficient. The outcome is reported as the number and proportion of valid physician-case evaluations in which no management recommendation can be provided because of insufficient information. |
| Secondary | Mean time in seconds required to complete each physician-case evaluation | 6 and 12 weeks after TKA | The study system automatically records the time required for a physician to review the available case information and complete the required recovery-status assessment and management recommendation. Decision time is reported in seconds and summarized for each study condition. |
| Secondary | Mean Mobile Application Usability Questionnaire score among patients using the smartphone gait assessment system | Up to 12 weeks, through study completion | At the end of the postoperative follow-up period, patients complete the Chinese version of the Mobile Application Usability Questionnaire (C-MAUQ) to evaluate the usability of the smartphone-based gait assessment system, including ease of use and satisfaction, system information arrangement, and perceived usefulness. The total score and domain scores are summarized using descriptive statistics. Under the scoring direction used in this study, lower scores indicate more favorable usability. |
| Secondary | Mean Health Information Technology Usability Evaluation Scale score among participating physicians | Up to 12 weeks, through study completion | After completing all case evaluations, physicians who used the AI-assisted gait report complete the Chinese professional version of the Health Information Technology Usability Evaluation Scale (Health-ITUES-P). The questionnaire assesses perceived usefulness, ease of use, user control, and compatibility with clinical workflow. Total and domain scores are summarized descriptively. Scores range from 1 to 5, with higher scores indicating a more favorable usability evaluation. |
Source ClinicalTrials.gov
Outcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT07892248
GET https://conductscience.org/api/trials/v1/NCT07892248/registered