Correlation Between 3 Phase Bone Scintigraphy and Pressure Pain Thresholds in Patients With Complex Regional Pain Syndrome (CRPS)
- Conditions
- Complex Regional Pain Syndrome Type I of the Upper LimbUnilateral Limb Pain of Other OriginHealthy Subjects
- Interventions
- Procedure: Pressure Pain measurement
- Registration Number
- NCT01623141
- Lead Sponsor
- Ruhr University of Bochum
- Brief 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.
- Detailed Description
Pressure pain of the distal hand joints is a predominant symptom of CRPS. But so far, the diagnostic value of pressure pain in the diagnosis of CRPS has not been investigated. We compared the pressure pain thresholds of the carpus, metacarpophalangeal and proximal interphalangeal joints to a region of interest-based (ROI) analysis of a TBPS in patients with CRPS and patients with limb pain of other origin (non-CRPS-group).Additionally, the PPTs were established for a healthy control group to get reference data.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 53
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
- 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
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description Patients with CRPS Pressure Pain measurement 18 patients with unilateral CPRS of the upper limb were included to the study Patients with limb pain of other origin Pressure Pain measurement 17 patients with unilateral upper limb pain of other origin served as control group Healthy subjects Pressure Pain measurement 18 healthy subjects were included to establish reference data for the pressure pain thresholds
- Primary Outcome Measures
Name Time Method Decrease of the pressure pain thresholds of the distal hand joints half an hour The pressure pain thresholds (PPT) were mesured for the carpus, metacarpophalangeal and proximal interphalangeal joints of both hands. The mean of three determined measurements of each joint was taken as the final value. Subseqently the PPT were compared to the results of the 3 phase bone scintigraphy and the reference data of the healthy subjects.
- Secondary Outcome Measures
Name Time Method Increased bone metabolism in the 3 phase bone scintigraphy 3 hours All Patients with CRPS and limb pain of other origin underwented a 3 phase bone scitigraphy to investigate a possible increased bone metabolism. Phase one and two were recorded within the first five minutes after injection of approximately 500-700 MBq 99mTechnetium-labeled methylene diphosphonate. The third phase was obtained two to three hours after injection.
Trial Locations
- Locations (1)
Bergmannsheil, department for pain management
🇩🇪Bochum, Nordrhein-Westfalen, Germany