Effectiveness of a Psychological Intervention in Patients Undergoing Total Knee Arthroplasty

NCT ID: NCT02988947

Last Updated: 2021-04-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

2 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-01-01

Study Completion Date

2020-12-18

Brief Summary

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The purpose of this study is to evaluate the effectiveness of a combined Pain Neuroscience Education (PNE) and Hypnosis (HyP) psychological intervention aiming at the control and prevention of pain and promotion of post-surgical recovery in patients undergoing Total Knee Arthroplasty

Detailed Description

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This is a prospective Randomized Controlled Trial (RCT), comparing an experimental group (EG), submitted to a PNE/HyP based psychological intervention, and a control group (CG), submitted to usual treatment and care.

After recruitment and evaluation of inclusion/exclusion criteria, patients entering the study will sign the Informed Consent. Baseline evaluation is performed at 1 month pre-surgery and, afterwards, patients are randomly assigned to EG (PNE+Hyp plus usual care) or CG (usual care only). The EG will be submitted to 3 pre-surgical and 1 (or 2) post-surgical reinforcement sessions. At 1 month post-surgery, the intervention group will be subdivided and participants will be randomly assigned to receive a reinforcement session or no intervention at this point. The psychological intervention sessions are based on the educative principles of Pain Neuroscience Education and on Hypnosis strategies for the promotion of pain control, positive coping strategies and psychological variables.

Patients will be evaluated on 6 moments: T0 - baseline, 1 month pre surgery; T1 - post intervention/24h before surgery; T2 - 72h post-surgery; T3 - 1 month post surgery; T4 - 6 months post surgery; T5 - 12 months post intervention. Patients will fill in self report measures and perform physiological evaluation to analyse relevant bio-markers (salivary cortisol and α-amylase) that are related to stress levels and SNS functioning and translate the impact of psychological interventions on physiological parameters.

Conditions

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Knee Arthroplasty, Total

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Intervention Group (PNE+HyP)

Patients in this group will have 3 pre-surgical + 1 (or 2) reinforcement sessions in adition to standard TKA care. These interventions are based on Pain Neuroscience Education and Hypnosis and delivered according to standardized scripts.

Group Type EXPERIMENTAL

PNE+HyP

Intervention Type OTHER

This is a combined PNE and Hypnosis psychological intervention. PNE is a cognitive based approach that highlights the biopsychosocial model of pain and focuses on neurophysiological and neurobiological processes and pain representation. Hypnosis aims at promoting pain control, increasing positive coping strategies, and targeting positive psychological variables.

Control Group

No intervention / Standard care

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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PNE+HyP

This is a combined PNE and Hypnosis psychological intervention. PNE is a cognitive based approach that highlights the biopsychosocial model of pain and focuses on neurophysiological and neurobiological processes and pain representation. Hypnosis aims at promoting pain control, increasing positive coping strategies, and targeting positive psychological variables.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Planned unilateral total knee arthroplasty due to gonarthrosis
* Giving consent to participate

Exclusion Criteria

* Inability to write and read
* Cognitive deficit (assessed by MMSE)
* Revision TKA
* Bilateral TKA
* TKA for reasons other than gonarthrosis (fracture, malignancy or infection)
* Psychiatric or neurological deficit (e.g. Schizophrenia or Alzheimers')
* Diagnosis of rheumatoid arthritis, Psoriatic arthritis, Systemic lupus erythematosus, Anquilosant spondylitis or other severe disease
* Contralateral hip or knee arthroplasty in the previous 6 months
* Planned contralateral hip or knee arthroplasty in the next 6 months
Minimum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hospital de Braga

OTHER

Sponsor Role collaborator

University of Minho

OTHER

Sponsor Role lead

Responsible Party

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Patrícia Ribeiro Pinto

Post-doctoral fellow

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Life and Health Sciences Research Institute

Braga, , Portugal

Site Status

Countries

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Portugal

Other Identifiers

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SFRH/BPD/103529/2014

Identifier Type: -

Identifier Source: org_study_id

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