NCT02701946

Brief Summary

Total knee arthroplasty (TKA) is one of the most successful procedures in orthopaedic surgery. Nevertheless, significant postoperative blood loss and requirement of blood transfusion are still problematic. Total blood loss in TKA can be divided into visible and invisible blood loss. Visible blood loss (VBL) means blood loss from the surgical field and wound drainage while invisible blood loss (IBL) means residual blood in the knee, extravasation into the tissues and loss due to haemolysis. In usual practice, TKA is performed with a bloodless field using a tourniquet. Thus intraoperative blood loss can be negligible and postoperative drainage is only considered as VBLvisible. In terms of IBL, Sehat et al. found that TKA carried a substantial IBL. Their results shown the mean IBL was 765 ml or 49% of the mean total blood loss after TKA. Therefore, the true total blood loss was underestimated if not takes IBL into account. Modified Robert Jones bandage (MRJB) is a bulky compressive dressing that often used in orthopaedic practice. Various techniques of application have been proposed. From the previous study, MRJB could make and maintain the anterolateral muscle compartment pressure for at least 24 hours after TKA. Therefore, theoretically, this bandage can cause the tamponade effect that helps to reduce tissue edema and postoperative bleeding especially IBL after TKA. However this potential benefit of MRJB is unclear and the use of this bandage after TKA is still controversy in clinical practice.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2016

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

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 28, 2016

Completed
2 days until next milestone

Study Start

First participant enrolled

March 1, 2016

Completed
7 days until next milestone

First Posted

Study publicly available on registry

March 8, 2016

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2017

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2017

Completed
Last Updated

May 29, 2018

Status Verified

May 1, 2018

Enrollment Period

1.3 years

First QC Date

February 28, 2016

Last Update Submit

May 25, 2018

Conditions

Keywords

Blood lossTotal knee arthroplastyBandageDressing

Outcome Measures

Primary Outcomes (2)

  • Invisible blood loss after surgery

    48 hours after surgery

  • Time (seconds) taken to perform time up and go test

    meters, turn, walk back to the chair, then sit down.

    6 weeks after surgery

Secondary Outcomes (5)

  • Postoperative visual analog pain score

    48 hours after surgery

  • Circumferences of thigh

    48 hours after surgery

  • Circumferences of knee

    48 hours after surgery

  • Score from Oxford knee score questionnaire

    6 weeks after surgery

  • Complication

    6 weeks after surgery

Study Arms (2)

Modified Robert Jones bandage

EXPERIMENTAL

Modified Robert Jones bandage is defined as a three-layers of thick cotton wool and two-layers of elastic bandages. The wool layers are put on firmly and overlapped the previous one by half at each turn. The elastic layers were pulled snugly with more tension distally than proximally. Before wrapping in each turn, the elastic bandage was stretched approximately 2 and 1.5 inches at below and above tibial tuberosity level, respectively. The whole bandage attains a thickness of about two inches and extends above the ankle joint to six inches above the knee joint. Before applying this bandage, the sterile gauze pads were placed over the wound and followed by WebrilTM padding (Covidien, Mansfield, MA, US).

Procedure: Modified Robert Jones bandage

Non compressive dressing

PLACEBO COMPARATOR

Non-compressive dressing is made by placing the sterile gauze pads over the wound and covering with the hypoallergenic self-adhesive, non-woven fabric tape.

Procedure: Non compressive dressing

Interventions

Modified Robert Jones bandage is defined as a three-layers of thick cotton wool and two-layers of elastic bandages. The wool layers are put on firmly and overlapped the previous one by half at each turn. The elastic layers were pulled snugly with more tension distally than proximally. Before wrapping in each turn, the elastic bandage was stretched approximately 2 and 1.5 inches at below and above tibial tuberosity level, respectively. The whole bandage attains a thickness of about two inches and extends above the ankle joint to six inches above the knee joint. Before applying this bandage, the sterile gauze pads were placed over the wound and followed by WebrilTM padding (Covidien, Mansfield, MA, US)

Modified Robert Jones bandage

Non-compressive dressing is made by placing the sterile gauze pads over the wound and covering with the hypoallergenic self-adhesive, non-woven fabric tape.

Non compressive dressing

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients who diagnosed primary osteoarthritis of knee and scheduled for primary unilateral total knee arthroplasty
  • Patients aged more than 18 years

You may not qualify if:

  • Patients who have a history of coagulopathy
  • Patients who receive antiplatelet drug in the previous week
  • Patients who treated other conditions with anticoagulant drug
  • Patients who have previous history of thromboembolic event
  • Patients who have vascular compromise of the operated limb
  • Patients who have chronic kidney disease or liver cirrhosis
  • Patients who refuse to participate the study
  • Patients who have allergy to tranexamic acid, sulfa or morphine
  • Patients who have blood loss per wound after surgery
  • Patients who can not receive spinal anesthesia and peripheral nerve block

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Chaturong Pornrattanamaneewong

Bangkok, 10700, Thailand

Location

MeSH Terms

Conditions

Postoperative HemorrhageHemorrhage

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and SymptomsPostoperative Complications

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical instructor

Study Record Dates

First Submitted

February 28, 2016

First Posted

March 8, 2016

Study Start

March 1, 2016

Primary Completion

June 1, 2017

Study Completion

December 1, 2017

Last Updated

May 29, 2018

Record last verified: 2018-05

Data Sharing

IPD Sharing
Will not share

Locations