An interventional study of Web-based conversational postoperative assistant in Osteoarthritis (OA) of the Knee, sponsored by Wojciech Sroga. Not yet recruiting at 1 site in Spain. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-28.
Sponsored by Wojciech Sroga · Not applicable, Interventional, and Supportive care
Total knee arthroplasty (TKA) is one of the most frequently performed elective orthopaedic procedures. Following hospital discharge, patients must manage pain, wound care and home rehabilitation with limited professional support. This pragmatic randomised pilot trial will evaluate whether a web-based conversational postoperative assistant, used in addition to standard care, improves patient satisfaction and exercise adherence during the first 6 weeks after TKA. Forty to sixty patients undergoing primary elective TKA will be randomised 1:1 to standard care with or without access to the conversational assistant. The primary outcome is overall patient satisfaction at 6 weeks. Secondary outcomes include pain intensity, exercise adherence, unplanned healthcare contacts and postoperative complications.
This single-centre pragmatic randomized pilot trial will evaluate the feasibility and preliminary effectiveness of a web-based conversational postoperative assistant following primary total knee arthroplasty (TKA). Participants will be randomized in a 1:1 ratio to receive either standard postoperative care alone or standard care plus access to the conversational assistant for 6 weeks after surgery.
The assistant provides evidence-based postoperative education, recovery guidance, answers to common patient questions, and safety-oriented recommendations. The primary outcome is overall patient satisfaction at 6 weeks. Secondary outcomes include pain intensity, exercise adherence, unplanned healthcare contacts, and postoperative complications. The study is designed to generate preliminary evidence to support the development of a larger definitive randomized controlled trial.
4,398 studies on the registry are indexed under Osteoarthritis; 582 are open to participants now.
This study's planned enrollment of 60 is below the median of 70 across 3,440 interventional studies indexed under Osteoarthritis.
Browse Osteoarthritis studies →This is the only study on the registry with Wojciech Sroga as lead sponsor.
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Exclusion Criteria:
Participants receive standard postoperative care plus access to a web-based conversational postoperative assistant for 6 weeks after primary total knee arthroplasty.
Behavioral: Web-based conversational postoperative assistant
Participants receive standard postoperative care without access to the web-based conversational postoperative assistant.
Participants assigned to the intervention group receive access to a web-based conversational assistant for 6 weeks after primary total knee arthroplasty. The assistant provides evidence-based postoperative education, recovery guidance, answers to common patient questions, and safety-oriented recommendations. It is available on demand and complements, but does not replace, standard postoperative care.
Overall Patient Satisfaction
Overall patient satisfaction measured using an 11-point Numeric Rating Scale (NRS), where 0 indicates not satisfied at all and 10 indicates completely satisfied.
Time frame: 6 weeks after total knee arthroplasty
Pain Intensity
Pain intensity measured using an 11-point Numeric Rating Scale (NRS), where 0 indicates no pain and 10 indicates the worst imaginable pain.
Time frame: 2 weeks and 6 weeks after total knee arthroplasty
Exercise Adherence
Exercise adherence assessed as the percentage of prescribed home exercise sessions completed, based on the participant's exercise diary.
Time frame: During the first 6 weeks after total knee arthroplasty
Unplanned Healthcare Contacts
Number of unplanned healthcare contacts related to the operated knee, including primary care visits, emergency department visits, outpatient consultations, and hospital readmissions.
Time frame: During the first 6 weeks after total knee arthroplasty
Postoperative Complications
Occurrence of postoperative complications related to the surgical procedure.
Time frame: During the first 6 weeks after total knee arthroplasty
Plan to share: Undecided
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This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.
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