NCT02997891

Brief Summary

The purpose of this study is to investigate the effectiveness of a hip arthroplasty for chronic pain, caused by a unilateral primary Coxartrhrose, regarding the cognitive performance. It is based on the hypothesis that the combination of chronic pain along with relative immobilization causes impairment of cognitive performance. The total hip replacement reduces pain, increases the mobility level and finally improves the cognitive performance.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
260

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Feb 2016

Typical duration for all trials

Geographic Reach
1 country

2 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2016

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

July 14, 2016

Completed
5 months until next milestone

First Posted

Study publicly available on registry

December 20, 2016

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2018

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2018

Completed
Last Updated

October 18, 2017

Status Verified

October 1, 2017

Enrollment Period

2.2 years

First QC Date

July 14, 2016

Last Update Submit

October 17, 2017

Conditions

Keywords

cognitionhip replacementphysical activityquality of lifepsychological distress

Outcome Measures

Primary Outcomes (5)

  • attention and concentration performance (assessed by d2 Test of Attention)

    Change from Baseline attention and concentration performance at 6 months

  • conceptual tracking, planning and flexibility (assessed by Trail Making Tests (Parts A and B)

    Change from Baseline conceptual tracking, planning and flexibility at 6 months

  • semantic memory (assessed by FAS-Test [Verbal Fluency])

    Change from Baseline semantic memory at 6 months

  • verbal episodic memory (Rivermead Behavioural Memory Test (RBMT) - story recall subtest) subtest

    Change from Baseline verbal episodic memory at 6 months

  • visuospatial constructional ability and visual memory (assessed by Rey-Osterrieth Complex Figure Test)

    Change from Baseline visuospatial constructional ability and visual memory at 6 months

Secondary Outcomes (5)

  • subjective physical activity (assessed by Physical Activity Scale for the Elderly (PASE))

    Change from Baseline subjective physical activity at 6 months

  • objective physical activity (assessed by pedometer GARAMIN vivofit)

    Change from Baseline objective physical activity at 6 months

  • anxiety (assessed by the Generalized Anxiety Disorder 7-Scale (GAD-7))

    Change from Baseline anxiety at 6 months

  • depression (assessed by the Patient Health Questionnaire (PHQ-9))

    Change from Baseline depression at 6 months

  • quality of life (assessed by the SF-12 health survey)

    Change from Baseline quality of life at 6 months

Study Arms (2)

intervention group

Patients with primary, unilateral hip osteoarthritis in inpatient orthopedic acute treatment, who have a medical indication of a necessary artificial hip replacement implantation.

Diagnostic Test: everyday activityDiagnostic Test: cognitive performance

control group

Volunteers without chronic pain. As a control condition for comparing the variation in cognitive performance and everyday activity the investigators use a group of pain-free and mobility-unrestricted subjects, who do not receive or have an artificial hip.

Diagnostic Test: everyday activityDiagnostic Test: cognitive performance

Interventions

everyday activityDIAGNOSTIC_TEST

To objectively quantify the everyday activity, there are a variety of instruments, without a currently gold standard. Therefore, in addition the investigators use objectified measurement parameters with the aid of a pedometer (GARMIN vivofit) on every three measuring time points (before surgery, 3 months after surgery, 6 months after surgery).

control groupintervention group
cognitive performanceDIAGNOSTIC_TEST

Standardized neuropsychological assessment methods are used to assess the cognitive performance. To assess the degree of mobility, health status and the physical activity standardized questionnaires are used.

control groupintervention group

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients are enrolled in this study, who are diagnosed in the orthopedic clinic of Klinikum Bad Bramstedt or in the orthopedic clinic at University Medical Center Hamburg-Eppendorf. Study participants with the diagnosis of primary, unilateral coxarthrosis (ICD-10-GM: M16.1) are added consecutively in the intervention group, if they need a hip replacement because of their condition and decide to undergo this hip replacement in the orthopedic clinic of Klinikum Bad Bramstedt.

You may qualify if:

  • primary, unilateral coxarthrosis
  • planning for hip replacement surgery in Bad Bramstedt

You may not qualify if:

  • dementia / cognitive impairment (Mini Mental Status Test \<25)
  • chronic pain otherwise genesis
  • reduced physical activity otherwise genesis
  • lack of German language skills
  • uncorrected serious impairment of vision or hearing
  • serious additional psychiatric diagnoses (e.g. substance abuse / addiction)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Klinikum Bad Bramstedt

Bad Bramstedt, 24576, Germany

RECRUITING

Universitätsklinikum Hamburg-Eppendorf

Hamburg, 20246, Germany

RECRUITING

Related Publications (2)

  • Rodriguez-Raecke R, Niemeier A, Ihle K, Ruether W, May A. Brain gray matter decrease in chronic pain is the consequence and not the cause of pain. J Neurosci. 2009 Nov 4;29(44):13746-50. doi: 10.1523/JNEUROSCI.3687-09.2009.

    PMID: 19889986BACKGROUND
  • Rodriguez-Raecke R, Niemeier A, Ihle K, Ruether W, May A. Structural brain changes in chronic pain reflect probably neither damage nor atrophy. PLoS One. 2013;8(2):e54475. doi: 10.1371/journal.pone.0054475. Epub 2013 Feb 6.

    PMID: 23405082BACKGROUND

MeSH Terms

Conditions

Osteoarthritis, HipMotor Activity

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic DiseasesBehavior

Study Officials

  • Andreas Niemeier, Prof. Dr.

    Universitätsklinikum Hamburg-Eppendorf

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Andreas Niemeier, Prof. Dr.

CONTACT

Sönke Arlt, PD Dr.

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 14, 2016

First Posted

December 20, 2016

Study Start

February 1, 2016

Primary Completion

April 1, 2018

Study Completion

May 1, 2018

Last Updated

October 18, 2017

Record last verified: 2017-10

Data Sharing

IPD Sharing
Will not share

Locations