Is a one-year routine check-up needed after hip or knee replacement?

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

HAKA WP1 compares routine 1-year clinic follow-up (including an x-ray) with a check-up-on-demand approach after primary total hip or knee arthroplasty. Eligible patients aged 50 and older with osteoarthritis who undergo primary THA or TKA are enrolled and assigned to one of the two follow-up strategies. Main outcomes at one year include patient-reported physical function (PROMIS), pain, and healthcare consumption, with the option for extra visits if concerns arise. The goal is to determine whether reducing routine visits can lower healthcare use and costs without worsening patient outcomes.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Painful and disabled hip or knee joint resulting from osteoarthritis
* Scheduled for primary THA or TKA surgery
* Age 50 years or older at the time of THA or TKA
* Capable and willing to complete questionnaires
* Proficient in Dutch or English
* Willing to provide informed consent

Exclusion Criteria:

* Other indication for surgery than osteoarthritis
* Scheduled for hip or knee revision arthroplasty, except a conversion from unicompartmental knee arthroplasty to TKA or from hip hemiarthroplasty/resurfacing to THA
* Already participating in this study due to a previous hip or knee surgery

Where it's running

• Olvg
  Amsterdam, Netherlands Recruiting
• Amphia
  Breda, Netherlands Recruiting
• Deventer Ziekenhuis
  Deventer, Netherlands Recruiting
• Admiraal de Ruyter Ziekenhuis
  Goes, Netherlands Recruiting
• Martini Ziekenhuis
  Groningen, Netherlands Recruiting
• Tergooi MC
  Hilversum, Netherlands Recruiting

Study contacts

• Study coordinator: Lidy A.C. Roubos, MSc.
• Email: L.A.C.Roubos@olvg.nl
• Phone: +31 20 599 3653

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.