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Vad är viktigt för patienter med svår höft- eller knäartros? (PATI-Project)

23 september 2026 uppdaterad av: Vejle Hospital

Vad är viktigt för patienter med svår höft- eller knäartros? Beslutskvalitet, patientengagemang och hälsoresultat

This clinical trial aims to investigate if shared decision-making, and the use of an in-consultation patient decision aid (PtDA), increases the decisional quality and therefore treatment satisfaction and outcome of patients with severe hip or knee osteoarthritis.

Finally, an evaluation will be conducted on patient-reported outcomes on pain, physical function, quality of life (QoL), and patient satisfaction, up to one year after surgery.

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Detaljerad beskrivning

Osteoarthritis (OA) is the most common joint disease and a major cause of disability worldwide. The condition typically affects the hip or knee, and as the condition progresses it frequently causes debilitating pain and stiffness in the affected joints; thus impairing mobility, and decreasing function and quality of life(QoL).

Approximately 10,300 primary hip arthroplasties (THA) and 10,000 primary knee arthroplasties (TKA/UKA) were performed in Denmark in 2021.

For the majority of patients with severe osteoarthritis, evidence shows that joint replacement surgery is life-changing. Despite this documented effect, not all patients achieve optimal results. Patient dissatisfaction following THA and TKA has been reported as 7 % and 11-18%, respectively.

It is hypothesized that a lack of adequate information and patient involvement in the decision process might lead to the misalignment of patients' expectations and subsequent dissatisfaction. Considerable evidence shows that patients prefer more information and greater involvement. This strongly supports the concept that patients need to be actively involved in treatment decisions.

Accordingly, increasing patient involvement in healthcare decisions may be beneficial. Shared decision-making (SDM) supports patients' active involvement in the process and improves the quality of decisions. SDM can be facilitated using a PtDA, which has shown significant benefits in a range of patient groups. However, research on SDM and PtDAs in patients with severe hip or knee OA is lacking.

The overall aim of this project is to investigate if an in-consultation PtDA increases the decision quality for patients with severe OA of the hip or knee.

Studietyp

Interventionell

Inskrivning (Faktisk)

615

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Danmark
      • Odense, Danmark, 5000
        • Odense University Hospital, OUH
      • Svendborg, Danmark, 5700
        • Odense University Hospital, OUH
      • Vejle, Danmark, 7100
        • Lillebaelt Hospital - Vejle

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Severe primary osteoarthritis eligible for primary total hip arthroplasty (THA) / primary total knee arthroplasty (TKA) / primary partial knee arthroplasty (UKA)
  • Able to understand and read Danish
  • Informed consent

Exclusion Criteria:

  • Previous THA, TKA, or UKA on the contralateral side
  • Cognitive impairment
  • Non-OA-related reason for the visit
  • No digital mailbox (E-boks)

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Stödjande vård
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Enda

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Shared decision-making (SDM)

Patients will be informed by a nurse before being consulted by the surgeon randomized to SDM and use the in-consultation PtDA during the consultation on patients with severe hip or knee osteoarthritis
Beteende: Shared decision-making supported by an in-consultation PtDA to patients with severe osteoarthritis in their hip or knee

The intervention group has been involved in the development process of the PtDA. After receiving a training course in SDM and the use of a PtDA, the surgeons will practice SDM supported by an in-consultation PtDA during the consultations with the participant.
Inget ingripande: Usual practice

Patients will be informed by a nurse before being consulted by the surgeon randomized to usual practice during the consultation on patients with severe hip or knee osteoarthritis

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
The participant's decisional quality according to The Hip/Knee Osteoarthritis Decision Quality Instrument (HK-DQI).
Tidsram: Within one week after inclusion in the consultation

Informed Patient-Centered (IPC) decision is calculated as the percentage of patients who are well-informed and received their preferred treatment.
Within one week after inclusion in the consultation

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Participant's engagement in the decision-making process as measured by the CollaboRATE questionnaire
Tidsram: Within one week after inclusion in the consultation

Minimum value: 0. Maximum value: 100. The higher the value the more shared decision-making
Within one week after inclusion in the consultation
Participant's involvement in the decision-making process as measured by the HK-DQI questionnaire
Tidsram: Within one week after inclusion in the consultation

HK-DQI, section 3, decision-making process: Minimum value: 0. Maximum value: 100. The higher the value the more shared decision-making
Within one week after inclusion in the consultation
The duration of consultation when PtDA is used compared to standard consultation without the use of PtDA.
Tidsram: Through study completion, an average of 1 year

The time duration will be documented by the surgeons
Through study completion, an average of 1 year

Andra resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Participant's Qol when undergoing hip or knee replacement surgery as measured by EuroQol (EQ-5D)
Tidsram: Three months and one year following surgery.

QoL: EuroQol (EQ-5D): Measuring the health-related quality of life. Presenting in three levels; Level 1: Indicating no problem, to Level 3: Indicating extreme problems
Three months and one year following surgery.
The participant's pain and physical function after undergoing hip replacement surgery as measured by the Oxford Hip Score (OHS) questionnaire
Tidsram: Three months and one year following surgery

Oxford Hip Score (OHS): Measuring function and pain with patients undergoing hip replacement surgery. Total scores range from 0 (poorest function) to 48 (maximal function).
Three months and one year following surgery
The participant's pain and physical function after undergoing knee replacement surgery as measured by the Oxford Knee Score (OKS) questionnaire
Tidsram: Three months and one year following surgery

Oxford Knee Score (OKS): Measuring function and pain with patients undergoing knee replacement surgery. Total scores range from 0 (poorest function) to 48 (maximal function).
Three months and one year following surgery
The participant's physical function after undergoing hip or knee replacement surgery as measured by Forgotten Joint Score (FJS) questionnaire
Tidsram: Three months and one year following surgery.

Forgotten joint score (FJS): Measuring the participants' awareness of their artificial joint during activity of daily living (ADL). Minimum value: 0. Maximum value: 100. The higher score, the less the patient is aware of their affected joint.
Three months and one year following surgery.
Participant's regret of the treatment decision as measured by the Decision Regret Scale questionnaire.
Tidsram: Three months and one year following surgery.

The Decision Regret Scale: Minimum value: 0. Maximum value: 100. The higher the value the more regret.
Three months and one year following surgery.
Participant's satisfaction after undergoing hip or knee replacement surgery as measured by the patient satisfaction questionnaire (PSQ)
Tidsram: Three months and one year following surgery.

The patient satisfaction questionnaire (PSQ): The higher the value the more satisfaction.
Three months and one year following surgery.

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Vejle Hospital

Samarbetspartners

Odense University Hospital

Utredare

  • Huvudutredare: Trine Ahlmann, PhD stud, Vejle Hospital
  • Studiestol: Claus Varnum, Ass.Prof.MD, Vejle Hospital
  • Studiestol: Martin Lindberg-Larsen, Ass.Prof.MD., Odense University Hospital
  • Studiestol: Charlotte Myhre Jensen, Ass.Prof.RN, Odense University Hospital
  • Studiestol: Karina Dahl Steffensen, Prof.MD., Vejle Hospital

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

11 oktober 2023

Primärt slutförande (Faktisk)

29 november 2024

Avslutad studie (Faktisk)

11 juli 2026

Studieregistreringsdatum

Först inskickad

8 juni 2023

Först inskickad som uppfyllde QC-kriterierna

24 juli 2023

Första postat (Faktisk)

2 augusti 2023

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

24 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

23 september 2026

Senast verifierad

1 september 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • S-20200137

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

JA

IPD-planbeskrivning

All data of the outcome measures will be available in an anonymized form if required by the scientific journal, in which the results of the trial will be published.

Tidsram för IPD-delning

Data will be available after the publication of the trial

Kriterier för IPD Sharing Access

Data access will be reviewed by the author's group

IPD-delning som stöder informationstyp

  • STUDY_PROTOCOL
  • SAV
  • ICF
  • ANALYTIC_CODE

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

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