NCT05789290

Brief Summary

Cryotherapy after surgery is widely utilised and has numerous practical applications for post-operative rehabilitation. Previous research has suggested that during cold therapy, the skin temperature of the knee should be reduced to 10-15°C to maximise the therapeutic benefits of cooling while avoiding the risk of cold injuries such as nerve damage and frostbite. The temperature to which a cryocompression device should be set in order to achieve a skin temperature within the therapeutic range of 10-15°C is unknown. Furthermore, there is evidence to suggest that the temperature setting of the device does not equal that to which the skin is reduced. Therefore, it is not sufficient to assume that the temperature setting of a cryocompression device accurately reflects the achieved skin temperature. Modern cryotherapy devices mostly consist of some sort of cuff that can be wrapped around the knee, with a connecting tube to a central unit that supplies and circulates cold water to and from the cuff in order to cool the intended body part. The Hilotherm is one such device for use in this way, but its ability to reduce skin temperature to within the target therapeutic range is unknown. The aim of this study is to determine whether the Hilotherm device is capable of reducing skin temperature of the knee to within the 10-15℃ therapeutic range during a standard 30-minute treatment.

Trial Health

30
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started Apr 2023

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
withdrawn

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

First Submitted

Initial submission to the registry

March 16, 2023

Completed
13 days until next milestone

First Posted

Study publicly available on registry

March 29, 2023

Completed
3 days until next milestone

Study Start

First participant enrolled

April 1, 2023

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2023

Completed
Last Updated

October 16, 2024

Status Verified

October 1, 2024

Enrollment Period

1 month

First QC Date

March 16, 2023

Last Update Submit

October 13, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Skin temperature

    Skin temperature will be measured using a thermocouple positioned 20 mm distal to the patella. This sensor will be attached prior to the cryocompression device being applied, and will remain in place until the testing session is complete and skin temperature is \>15℃. (The therapeutic skin temperature range for cryotherapy is thought to be 10-15℃). Temperature will be measured prior to the cryocompression device being applied; every 5 minutes during the test; and every 5 minutes after a test until the skin temperature reaches \>15℃.

    60 minutes

Secondary Outcomes (1)

  • Subjective comfort

    60 minutes

Study Arms (1)

Test group

This group will receive a 30-minute cryocompression treatment to one knee using a Hilotherm device, which is set to circulate water through the cuff at a maintained temperature of 10℃. The Hilotherm device will be administered according to the manufacturer's guidelines and each participant will undergo this treatment once.

Device: Hilotherm cryocompression device

Interventions

An electronic device that is capable of circulating warm or cooled water at a user-selected temperature between 10-30℃. Water is circulated from a central unit, through a tube, to a cuff wrapped around the intended therapy area (the knee). A treatment lasts for 30-minutes, at which point the device is turned off and the cuff is removed from the limb of the user.

Test group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Healthy adult volunteers recruited primarily from a university population. All individuals willing to participate will be screened according to the abovementioned inclusion/exclusion criteria, and will be recruited until 30 people have completed their participation in the study.

You may qualify if:

  • \>18 years of age

You may not qualify if:

  • BMI \>40 kg/m2
  • History of nerve damage or sensory deficit in the lower limbs (including frostbite)
  • Hypersensitivity to cold, including hives
  • Active inflammation or pain of the knee
  • History of thrombosis, embolism, or other conditions related to impaired peripheral circulation
  • Suffering from diagnosed diabetes, multiple sclerosis, rheumatoid arthritis, spinal cord injury, cardio-vascular disease, hypertension, Raynaud disease, cryoglobulinemia, or haemoglobinuria
  • Confirmed or suspected tissue infection, an unstable fracture, a skin condition, or a tumour in the treatment area
  • Cognitive impairment or communication barriers where adjustments can not be reasonably made

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Winchester, Physiology Laboratory

Winchester, SO22 4NR, United Kingdom

Location

Related Publications (6)

  • Wilke B, Weiner RD. Postoperative cryotherapy: risks versus benefits of continuous-flow cryotherapy units. Clin Podiatr Med Surg. 2003 Apr;20(2):307-22. doi: 10.1016/S0891-8422(03)00009-0.

    PMID: 12776983BACKGROUND
  • Bleakley C, McDonough S, MacAuley D. The use of ice in the treatment of acute soft-tissue injury: a systematic review of randomized controlled trials. Am J Sports Med. 2004 Jan-Feb;32(1):251-61. doi: 10.1177/0363546503260757.

    PMID: 14754753BACKGROUND
  • Fang L, Hung CH, Wu SL, Fang SH, Stocker J. The effects of cryotherapy in relieving postarthroscopy pain. J Clin Nurs. 2012 Mar;21(5-6):636-43. doi: 10.1111/j.1365-2702.2010.03531.x. Epub 2011 Feb 20.

    PMID: 21332855BACKGROUND
  • Waterman B, Walker JJ, Swaims C, Shortt M, Todd MS, Machen SM, Owens BD. The efficacy of combined cryotherapy and compression compared with cryotherapy alone following anterior cruciate ligament reconstruction. J Knee Surg. 2012 May;25(2):155-60. doi: 10.1055/s-0031-1299650.

    PMID: 22928433BACKGROUND
  • Bellon M, Michelet D, Carrara N, Vacher T, Gafsou B, Ilhareborde B, Mazda K, Ferrero E, Simon AL, Julien-Marsollier F, Dahmani S. Efficacy of the Game Ready(R) cooling device on postoperative analgesia after scoliosis surgery in children. Eur Spine J. 2019 Jun;28(6):1257-1264. doi: 10.1007/s00586-019-05886-6. Epub 2019 Jan 31.

    PMID: 30847706BACKGROUND
  • Selfe J, Hardaker N, Whittaker J and Hayes C. An investigation into the effect on skin surface temperature of three cryotherapy modalities. Thermology International. 2009; 19(4): 121-126.

    BACKGROUND

MeSH Terms

Conditions

Body Temperature Changes

Condition Hierarchy (Ancestors)

Signs and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • James Faulkner, PhD

    University of Winchester

    PRINCIPAL INVESTIGATOR
0

Study Design

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

Study Record Dates

First Submitted

March 16, 2023

First Posted

March 29, 2023

Study Start

April 1, 2023

Primary Completion

May 1, 2023

Study Completion

May 1, 2023

Last Updated

October 16, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will not share

Only researchers directly involved with the data collection of the study will have access to individual participant data. Data will be anonymised prior to analysis and only group data will be presented within resultant manuscripts.

Locations