Clinical Investigation of a Novel Approach for the Prevention of Deep Venous Thrombosis After Total Knee Replacement
1 other identifier
interventional
90
1 country
1
Brief Summary
Venous thromboembolism, including deep vein thrombosis (DVT), has long been recognized as the most frequent complication within 7 to 14 days after orthopedic surgery, especially total joint arthroplasty. Without prophylactic therapy, the incidence of DVT and pulmonary embolism reaches up to 60% following orthopedic surgery. The possible damage to the vessel wall during the operation, the venous stasis caused by long-term bed rest, and the hypercoagulability of the blood after the surgery are the 3 main reasons for the formation of DVT. In most cases, the thrombi resolve spontaneously; however, some of them (about 1\~4%) may develop into symptomatic and even fatal DVT. Ankle pumping exercise is currently suggested for the patients with joint placement surgery to prevent the formation of lower-extremity DVT after orthopedic surgery. However, the compliance of the exercise at home is unclear. In order to remind the patients to the active ankle exercise and record the executive rate, a device was developed to help the patient to exercise in the hospital and at home. The device will remind the patient to exercise at specific time point by verbal and vibrations, and detect the range of motion during the exercise for further analysis. The aim of this study is to access the effect of a non-invasive novel device in preventing the formation of lower limb DVT. Maximum venous outflow, maximum venous capacity, and blood rheology were measured and the incidence of DVT was recorded for the data analysis.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Oct 2019
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 17, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 20, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2020
CompletedFirst Submitted
Initial submission to the registry
July 6, 2021
CompletedFirst Posted
Study publicly available on registry
July 27, 2021
CompletedJuly 27, 2021
July 1, 2021
1.1 years
July 6, 2021
July 15, 2021
Conditions
Outcome Measures
Primary Outcomes (4)
change of peak flow velocity
The peak flow velocity was directly detected using the Doppler images. The examination was conducted by an experienced technician.
The peak flow velocity was determined on the 1st, 3rd, and 14th days after surgery.
change of flow volume
The flow volume was directly detected using the Doppler images. The examination was conducted by an experienced technician.
The flow volume was determined on the 1st, 3rd, and 14th days after surgery.
Number of Participants with stasis
Venous stasis was determined by a peak flow velocity lower than 10 cm/s, and the color of the blood inside the vein represented in the echo image was gray. In addition, the contour of the vein was compressible under a slight compression force with an echo transducer.
Stasis was determined on the 1st, 3rd, and 14th days after surgery.
Number of Participants with deep venous thrombosis
If the peak blood flow, flow volume, and blood echo image were the same as that of stasis, but the contour of the vein was incompressible under a slight compression, the cases were recorded as deep venous thrombosis.
Deep venous thrombosis was determined on the 1st, 3rd, and 14th days after surgery.
Study Arms (3)
active ankle pumping without any reminders
NO INTERVENTIONIn group 1, active ankle pumping exercise for the operative limb was performed without any reminder during hospitalization and at home after being discharged.
intermittent pneumatic compression
ACTIVE COMPARATORIn group 2, intermittent pneumatic compression was applied to the operative low limb during hospitalization, while active ankle pumping exercise was adopted without any reminder after discharge.
active ankle pumping with a regular watch alarm
EXPERIMENTALIn group 3, in addition to the active ankle pumping exercise for the operative limb, the patients were reminded to exercise at specific time points with a vocal alarm and vibration through a wrist watch during the hospitalization period and at home after discharge. The watch was continuously used until the 14th day when the patients returned to the hospital for examination.
Interventions
In addition to the active ankle pumping exercise for the operative limb, the patients were reminded to exercise at specific time points with a vocal alarm and vibration through a wrist watch during the hospitalization period and at home after discharge.
In this group, intermittent pneumatic compression was applied to the operative low limb during hospitalization, while active ankle pumping exercise was adopted without any reminder after discharge.
Eligibility Criteria
You may qualify if:
- patients who underwent total knee replacement surgery
You may not qualify if:
- Patients with a history of cardiovascular disease, such as DVT, dyslipidemia, hypertension, myocardial infarction, and hemorrhagic disease were excluded from this study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Show Chwan Memorial Hospital
Changhua, 500, Taiwan
Related Publications (5)
Anderson DR, Dunbar M, Murnaghan J, Kahn SR, Gross P, Forsythe M, Pelet S, Fisher W, Belzile E, Dolan S, Crowther M, Bohm E, MacDonald SJ, Gofton W, Kim P, Zukor D, Pleasance S, Andreou P, Doucette S, Theriault C, Abianui A, Carrier M, Kovacs MJ, Rodger MA, Coyle D, Wells PS, Vendittoli PA. Aspirin or Rivaroxaban for VTE Prophylaxis after Hip or Knee Arthroplasty. N Engl J Med. 2018 Feb 22;378(8):699-707. doi: 10.1056/NEJMoa1712746.
PMID: 29466159BACKGROUNDBlagojevic M, Jinks C, Jeffery A, Jordan KP. Risk factors for onset of osteoarthritis of the knee in older adults: a systematic review and meta-analysis. Osteoarthritis Cartilage. 2010 Jan;18(1):24-33. doi: 10.1016/j.joca.2009.08.010. Epub 2009 Sep 2.
PMID: 19751691BACKGROUNDBoylan MR, Perfetti DC, Kapadia BH, Delanois RE, Paulino CB, Mont MA. Venous Thromboembolic Disease in Revision vs Primary Total Knee Arthroplasty. J Arthroplasty. 2017 Jun;32(6):1996-1999. doi: 10.1016/j.arth.2016.12.051. Epub 2017 Jan 11.
PMID: 28209273BACKGROUNDChangulani M, Kalairajah Y, Peel T, Field RE. The relationship between obesity and the age at which hip and knee replacement is undertaken. J Bone Joint Surg Br. 2008 Mar;90(3):360-3. doi: 10.1302/0301-620X.90B3.19782.
PMID: 18310761BACKGROUNDChen Q, Huang S, Chen X, Feng L, Zhu X. [Clinical efficacy of multi-pattern detumescence after total knee arthroplasty treated with acupoint massage and mild moxibustion]. Zhongguo Zhen Jiu. 2016 May;36(5):471-5. Chinese.
PMID: 27509603BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
July 6, 2021
First Posted
July 27, 2021
Study Start
October 17, 2019
Primary Completion
November 20, 2020
Study Completion
December 31, 2020
Last Updated
July 27, 2021
Record last verified: 2021-07
Data Sharing
- IPD Sharing
- Will not share