Prediction of Pain in Total Hip Arthroplasty

Completed

• Conditions: Pain, Postoperative
• Interventions: Device: heat pain test (Modular Sensory Analyzer, Somedic AB, Horby, Sweden).

• Registration Number: NCT01324375
• Lead Sponsor: Hvidovre University Hospital

Brief Summary

In this consecutive, prospective cohort study the investigators evaluate if preoperative pain response upon heat stimulation is predictive for acute and subacute postoperative pain after total hip arthroplasty.

Detailed Description

The preoperative heat stimulation consists of short and long tonic heat stimulation. Pain response is evaluated with an electronic visual analog scale.

Furthermore the investigators evaluate other factors possibly predictable for acute and subacute postoperative pain after total hip arthroplasty - demographic factors, preoperative pain related factors, psychosocial factors (Hospital Anxiety and Depression Scale and Pain Catastrophizing Scale).

Study Timeline

• Study Start: 2011-03
• Study First Submitted: 2011-03-25
• Study First Submitted QC: 2011-03-25
• Study First Posted: 2011-03-29
• Primary Completion: 2012-03
• Study Completion: 2012-03
• Status Verified: 2012-09
• Last Update Submitted: 2012-09-25
• Last Update Posted: 2012-09-26

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

• Ethnic danes, above 18 years and able to give informed consent scheduled for primary, unilateral total hip arthroplasty

Exclusion Criteria

• Bilateral/revision arthroplasty
• Disease affection central or peripheral nerve function
• Alcohol and medical abuse
• Daily use of opioids or glucocorticoids
• Malignancy
• BMI > 40
• Depression
• Dementia or other cognitive dysfunction

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
THA (total hip arthroplasty)	heat pain test (Modular Sensory Analyzer, Somedic AB, Horby, Sweden).	Patients undergoing THA, preoperatively heat tested

Primary Outcome Measures

Name	Time	Method
Pain (from 0-24 hours after surgery)	24 hours	Pain assessed with the visual analog scale

Secondary Outcome Measures

Name	Time	Method
Pain (from day 1 to day 7 after surgery)	7 days	Pain assessed with the visual analog scale
Pain at day 14 after surgery	14 days	Pain assessed with the visual analog scale
Pain at day 30 after surgery	30 days	Pain assessed with the visual analog scale

Trial Locations

Locations (1)

Dep. of Anesthesiology, Hvidovre University Hospital; 🇩🇰 Copenhagen, Hvidovre, Denmark