CompletedNot Applicable

Correlation Between 3 Phase Bone Scintigraphy and Pressure Pain Thresholds in Patients With Complex Regional Pain Syndrome (CRPS)

Germany53 participantsStarted 2010-10

Plain-language summary

The aim of the study is to investigate the correlation between increased bone metabolism in the 3 phase bone scintigraphy (TPBS) and decreased pressure pain thresholds in patients with complex regional pain syndrome (CRPS) of the upper limb and a non-CRPS-group. The investigators assume that there will be a significant correlation between the investigated values in the CRPS-group whereas the non-CRPS-group shows no significant correlation.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: every participant: * aged \> 18 years with written informed consent * adequate understanding of the german language * indication for a TPBS independent of the study Patients with CRPS: * patients with CRPS type 1 of the upper limb diagnosed on the basis of the budapest criteria (Harden, Bruehl et al., 2010) * unilateral pain Control group: * patients with pain of the upper limbs of other origin than CRPS who underwent a TPBS * unilateral pain Healthy subjects: * checked by the DFNS IMI questionnaire Exclusion Criteria: * missing informed consent * inadequate understanding of the german language * disease duration of more than 12 months * other disease of the upper extremity (e.g. polyarthrosis, rheumatoid arthritis) * pregnancy/ lactation period

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Decrease of the pressure pain thresholds of the distal hand joints

Timeframe: half an hour

Trial details

NCT IDNCT01623141

SponsorRuhr University of Bochum

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2011-10

View on ClinicalTrials.gov More Complex Regional Pain Syndrome Type I of the Upper Limb trials