Types of persistent pain 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

Approximately 100 consenting patients with persistent postoperative pain (NRS >3) identified from a pool of about 7,000 respondents will be re-invited to complete standardized pain questionnaires. Neuropathic pain will be measured with the DN4, nociplastic pain with IASP criteria plus the Fibromyalgia Survey Questionnaire, and nociceptive pain using the KOOS/HOOS pain domains. Primary outcomes are the prevalence of potential nociplastic pain and the proportion of patients experiencing significant pain in two or more mechanistic categories, with secondary analyses comparing baseline versus follow-up DN4, FSQ, and KOOS/HOOS distributions and differences by neuropathic pain status. The results are intended to inform more targeted pre- and postoperative pain management strategies for arthroplasty patients.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* All patients with persistent moderate-severe pain (NRS\>3) after THA, TKA and UKA
* Acceptance to be contacted.

Exclusion Criteria:

* Re-operation
* Luxation
* Do not want to be contacted
* Post-operative complications such as prosthesis infection, thromboembolism or fracture of the prosthesis.

Where it's running

• Rigshospitalet
  Østerbro, København Ø, Denmark Recruiting

Study contacts

• Study coordinator: Milan Mohammad, MD
• Email: milanmohammad@hotmail.com
• Phone: +4560162372

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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.