NCT06730399

Brief Summary

The aim of this study was to investigate whether computer-assisted cryotherapy is effective in reducing postoperative pain and analgesics consumption, next to improving functional outcome and patient satisfaction after total knee arthroplasty (TKA). The hypothesis is that computer-assisted cryotherapy has positive effects on postoperative pain after TKA. For this purpose a single-centre non-blinded trial was designed where two groups of patients were observed, a cold (cryotherapy) C-group and a regular (control) R-group. Depended on the week they were operated patients received either usual care (R-group) or computed-assesed- cryotherapy (odd or even week; week-on/week-off principle). Patients in the C-group received next to usual postoperative care computer-assisted cryotherapy for several hours a day during the first seven postoperative days (10-12 degrees Celcius). Primary outcome was pain, monitored with the numerical rating scale for pain. Secondary outcomes were the use of opioid escape medication, function and swelling, monitored by active range of motion, timed up and go test and circumference measurements; several patient-reported outcome measures (short term 2 and 6 weeks; and longer term 6 and 12 months postoperative); and patient satisfaction, monitored by the numerical rating scale for satisfaction.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
106

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Aug 2019

Geographic Reach
1 country

1 active site

Status
completed

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

August 1, 2019

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 9, 2020

Completed
10 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 23, 2021

Completed
3.7 years until next milestone

First Submitted

Initial submission to the registry

December 9, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

December 12, 2024

Completed
Last Updated

January 8, 2025

Status Verified

January 1, 2025

Enrollment Period

10 months

First QC Date

December 9, 2024

Last Update Submit

January 6, 2025

Conditions

Keywords

cryotherapyTKApostoperative rehabilitationpainrecoveryopioid

Outcome Measures

Primary Outcomes (1)

  • Numeric rating scale (NRS) pain score in rest

    range 0-10, where a higher score indicates more pain

    assessed at 6 weeks postoperative

Secondary Outcomes (16)

  • Numeric rating scale (NRS) pain score in rest

    at baseline, daily during the first 7 days, after 2 weeks, and 6 and 12 months postoperative

  • Numeric rating scale (NRS) pain scores while loading

    at baseline, daily during the first 7 days, after 2 and 6 weeks, and 6 and 12 months postoperative

  • Opioid use

    daily during the first week after surgery

  • active Range of Motion

    at baseline and at 6 weeks postoperative

  • Timed Up and Go

    at baseline and at 6 weeks postoperative

  • +11 more secondary outcomes

Study Arms (2)

Cryotherapy group

Postoperative treatment using computed-assisted-cryotherapy in the first week postoperative in addition to usual care

Device: Computed-assisted-cryotherapy

Control group

Postoperative treatment according to usual care

Interventions

cryotherapy device

Cryotherapy group

Eligibility Criteria

Age18 Years+
Sexall(Gender-based eligibility)
Gender Eligibility Detailsall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study population is recruited from one large peripheral hospital in the Netherlands, the Martini Hospital.

You may qualify if:

  • Patients scheduled for a primary TKA or UKA in the Martini Hospital.
  • Age ≥ 18 years

You may not qualify if:

  • skin (or other) infections
  • rheumatoid arthritis
  • vascular disease
  • having a strong preference for one of the two treatment options

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Martini Hospital

Groningen, Provincie Groningen, Netherlands

Location

Related Publications (2)

  • Brouwers HFG, de Vries AJ, van Zuilen M, van Kouswijk HW, Brouwer RW. The role of computer-assisted cryotherapy in the postoperative treatment after total knee arthroplasty: positive effects on pain and opioid consumption. Knee Surg Sports Traumatol Arthrosc. 2022 Aug;30(8):2698-2706. doi: 10.1007/s00167-021-06568-x. Epub 2021 Apr 26.

    PMID: 33903923BACKGROUND
  • Thijs E, Schotanus MGM, Bemelmans YFL, Kort NP. Reduced opiate use after total knee arthroplasty using computer-assisted cryotherapy. Knee Surg Sports Traumatol Arthrosc. 2019 Apr;27(4):1204-1212. doi: 10.1007/s00167-018-4962-y. Epub 2018 May 3.

    PMID: 29725749BACKGROUND

MeSH Terms

Conditions

Pain

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Design

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

Study Record Dates

First Submitted

December 9, 2024

First Posted

December 12, 2024

Study Start

August 1, 2019

Primary Completion

June 9, 2020

Study Completion

March 23, 2021

Last Updated

January 8, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will share

Only deidentified data will be available upon reasonable written request in conjunction with appropriate data use agreement.

Locations