Evaluation of the patient-assisting app "alley" for patients with knee and hip osteoarthritis: A randomised controlled multicentre study

Evaluation of the patient-assisting app "alley" for patients with knee and hip osteoarthritis: A randomised controlled multicentre study - alley-App

Status

Active, not recruiting

Phases

Phase 2

Study type

Interventional

Source

DRKS

Registry ID

DRKS00025608

Enrollment

400

Registered

2021-06-21

Start date

2021-09-01

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

Patients with total hip arthroplasty (OPS 5-820) Patients with total knee arthroplasty (OPS 5-822)

Interventions

Group 1: Intervention group with adjuvant access to surgery-accompanying application "alley ortho companion". Patients receive patient-educational content on three levels before and after surgery: (

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: (1) Planned arthroplasty of the hip (OPS code 5-820) or knee joint (OPS 5-822); (2) Age > 18 years; (3) Smartphone or internet-enabled device

Exclusion criteria

Exclusion criteria: (1) Knee/hip replacements due to an emergency (e.g. after a fall); (2) Revision of the joint arthroplasty; (3) Care level >3; (4) Cognitive impairments of any kind (according to the assessment of the treating physicians) that prevent the proper use of the app; (5) Mental illness (according to the assessment of the treating physicians) that prevents the proper use of the app; (6) Neurological illness (e.g. Parkinson's disease, MS, dementia, etc.) (according to the assessment of the treating physicians) that prevents the proper use of the app. (7) Age younger than 18 years; (8) Insufficient knowledge of German language to be able to use the app properly, which prevents the questionnaires from being completed or the content displayed cannot be understood; (9) No smartphone or internet-capable device; (10) Pregnancy; (11) Women who are breast-feeding

Design outcomes

Primary

Measure	Time frame
Function status: (1) Hip Osteoarthritis Outcome Score (HOOS for osteoarthritis of the hip); (2) Knee Injury and Osteoarthritis Outcome Score (KOOS for osteoarthritis of the knee)	—

Secondary

Measure	Time frame
Pain VAS; Depression Anxiety Stress Scales (DASS); Patient-Reported Outcomes Measurement Information System (PROMIS®-29); Adapted credibility/expectancy questionnaire; Patient satisfaction questionnaire (PEQ); Life orientation test; Fall risk (own construction).	—

Countries

Germany

Contacts

Public ContactAndré Strahl

Universitätsklinikum Hamburg-Eppendorf, Klinik für Unfallchirurgie und Othopädie, Fachbereich Orthopädie

a.strahl@uke.de040 / 7410 52670

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 13, 2026