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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03777072
Other study ID # ARP1
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date December 12, 2018
Est. completion date December 30, 2020

Study information

Verified date December 2018
Source Istituto Ortopedico Galeazzi
Contact Tito Bassani, PhD
Phone +390266214939
Email tito.bassani@grupposandonato.it
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The study evaluates a novel web-based application for monitoring the postoperative pain in patients undergoing total ankle replacement, from preoperative condition to 30 days follow-up. The indexes provided by the app in terms of percentages of pain areas are compared with that obtained with traditional visual analogue scale. Moreover, the relation between the percentage of pain area and the presence of side effects of the intervention are compared as well.


Description:

Background:

The management of postoperative pain in patients undergoing total ankle replacement is routinely based on one of the two following drugs: tapentadol and oxycodone/naloxone (Nett, 2010). The drugs are used with similar frequencies. Indeed, previous studies compared the two drugs in terms of efficacy in reducing postoperative pain and frequency of side effects, in the field of orthopaedic and trauma surgery (Haeseler, 2017, Hartrick, 2009). The studies demonstrated that there are no substantial differences.

With regard to pain monitoring, the gold standard is the visual-analogue scale (VAS), which allows the patient to indicate the pain level as a score ranging from 0 to 10 (from minimum to maximum) (Campbell, 1990). Recently, a pain monitoring web-based application has been developed and distributed: 'NavigatePain' (NavigatePain, Aglance Solutions, Denmark). The app can be used in a simple and intuitive manner by PC, smartphone or tablet devices (Boudreau, 2016; Matthews, 2018). Moreover, physicians can easily schedule postoperative self-monitoring sessions for the patients (exploiting automatic notification messages sent by e-mail). The app allows the user to draw the pain areas in the frontal, posterior and lateral body planes, providing an index that quantifies the percentage of pain area with respect to the total body area in the considered plane. VAS score and notes reporting side effects can be reported as well in the app. Compared to VAS score, the pain area index is differentiated in the body planes and can represent a complementary and more specific source of information in monitoring postoperative pain.

Aim of the study:

The study evaluates the NavigatePain app for monitoring the postoperative pain in patients undergoing total ankle replacement, from preoperative condition to 30 days follow-up. The indexes provided by the app in terms of percentages of pain areas are compared to VAS reference score. Moreover, the relation between the percentage of pain area and the presence of side effects of the intervention are compared as well.

Methods:

A sample of 70 subjects undergoing total ankle replacement surgery will be consecutively enrolled. Age range will be 18 to 60 years. A user account will be created in the app for every subject, allowing to acquire data immediately visible to the physician. Pain areas, VAS score and presence of side effects will be acquired using the app at the following times: i) the day before surgery, without drug administration; ii) day 1 after surgery; iii) day 2; iv) day of hospital discharge (corresponding to day 3); v) day 7; vi) day 15; vii) day 30. Monitorings from i) to iv) will be acquired during hospitalization using a dedicated tablet device. In v), vi) and vii), the monitoring sessions will be notified to patients by the automatic notification service of the app (via e-mail); in these cases, patients will use own devices (e.g. PC, tablet or smartphone) to connect to account and perform drawing.

Outcomes:

The mean value of pain area index, and of VAS score will be compared over time and tested according to one way ANOVA for repeated measurements.

The relation between pain area index and VAS will be assessed according to Pearson correlation coefficient, or Spearman rank correlation in case of not normal distribution. Statistical significance of the coefficients will be tested according to two-tailed t-test or permutation distribution test assessing Pearson and Spearman coefficients, respectively. Linear regression analysis will be performed as well.

The relation between pain area index and presence of side effects (expressed as dichotomic variable: 1 in case of reported effects, 0 otherwise) will be tested according to point biserial correlation coefficient.

Correlation coefficient and linear regression will be evaluated in each time session. The results will be compared among the consecutive times in order to assess the potential dependence on the follow-up time.

The sample size of 70 subjects has been verified to guarantee identifying statistically significant differences in the mean value along the follow-up times (ANOVA test, one group, seven repetitions, 0.05 level alpha, power 95%, expected correlation 0.5, effect size 0.15). Moreover, the sample size guarantees identifying as significantly different from zero a correlation value larger than 0.7 (i.e. strong correlation), by t-test at 0.05 level alpha and power 95% (G*Power software, Universitat Dusseldorf, Germany).


Recruitment information / eligibility

Status Recruiting
Enrollment 70
Est. completion date December 30, 2020
Est. primary completion date December 30, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years to 60 Years
Eligibility Inclusion Criteria:

- age from 18 to 60 years

- ankle arthrosis grade 3 or 4, according to Kellgren-Lawrence classification

- subject undergoing first implant of total ankle replacement

- skeletal maturity

- signed informed consent

Exclusion Criteria:

- previous ankle replacement implants or ipsilateral ankle arthrodesis

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
Italy Irccs Istituto Ortopedico Galeazzi Milan Milano

Sponsors (1)

Lead Sponsor Collaborator
Istituto Ortopedico Galeazzi

Country where clinical trial is conducted

Italy, 

References & Publications (6)

Boudreau SA, Badsberg S, Christensen SW, Egsgaard LL. Digital Pain Drawings: Assessing Touch-Screen Technology and 3D Body Schemas. Clin J Pain. 2016 Feb;32(2):139-45. doi: 10.1097/AJP.0000000000000230. — View Citation

Campbell WI, Lewis S. Visual analogue measurement of pain. Ulster Med J. 1990 Oct;59(2):149-54. — View Citation

Haeseler G, Schaefers D, Prison N, Ahrens J, Liu X, Karch A. Combatting pain after orthopedic/trauma surgery- perioperative oral extended-release tapentadol vs. extended-release oxycodone/naloxone. BMC Anesthesiol. 2017 Jul 11;17(1):91. doi: 10.1186/s12871-017-0383-6. — View Citation

Hartrick C, Van Hove I, Stegmann JU, Oh C, Upmalis D. Efficacy and tolerability of tapentadol immediate release and oxycodone HCl immediate release in patients awaiting primary joint replacement surgery for end-stage joint disease: a 10-day, phase III, randomized, double-blind, active- and placebo-controlled study. Clin Ther. 2009 Feb;31(2):260-71. doi: 10.1016/j.clinthera.2009.02.009. — View Citation

Matthews M, Rathleff MS, Vicenzino B, Boudreau SA. Capturing patient-reported area of knee pain: a concurrent validity study using digital technology in patients with patellofemoral pain. PeerJ. 2018 Mar 8;6:e4406. doi: 10.7717/peerj.4406. eCollection 2018. — View Citation

Nett MP. Postoperative pain management. Orthopedics. 2010 Sep;33(9 Suppl):23-6. doi: 10.3928/01477447-20100722-60. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Pain area index Quantifies the percentage of pain area with respect to the total body area in the considered plane Through study completion, an average of 18 months
Primary VAS score Continuous value ranging from 0 (minimum) to 10 (maximum), indicating the pain level reported by patient. Through study completion, an average of 18 months
Primary Presence of side effects Dichotomic variable. Equal to 1 in case of reported side effects, 0 otherwise. Through study completion, an average of 18 months
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