NCT00916331

Brief Summary

This prospective, randomized trial asked whether subcutaneous indwelling of vacuum drainage has advantages over intraarticular indwelling in terms of blood loss, bleeding related complications, and functional outcomes in primary total knee arthroplasty (TKA). The investigators hypothesized that the subcutaneous indwelling method would reduce blood loss with comparable bleeding-related complications and functional outcomes. The subcutaneous indwelling group demonstrated reduced blood loss with comparable prevalence of bleeding-related complications and functional outcomes. In conclusion, the investigators' study verified the efficacy and absence of risks of subcutaneous indwelling method. So the investigators propose that the subcutaneous indwelling drainage can be a good option to address the problems related to postoperative bleeding after TKA.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
111

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started May 2006

Shorter than P25 for phase_4

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

Study Start

First participant enrolled

May 1, 2006

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2007

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2007

Completed
2 years until next milestone

First Submitted

Initial submission to the registry

May 15, 2009

Completed
25 days until next milestone

First Posted

Study publicly available on registry

June 9, 2009

Completed
Last Updated

June 9, 2009

Status Verified

June 1, 2009

Enrollment Period

1.1 years

First QC Date

May 15, 2009

Last Update Submit

June 5, 2009

Conditions

Keywords

total knee replacement arthroplastysubcutaneous indwellingblood losscomplicationsfunctional status

Outcome Measures

Primary Outcomes (1)

  • blood parameters by which we can estimate blood loss , such as drained blood volume, hemoglobin and hemoglobin drop

    24 hours after operation

Secondary Outcomes (4)

  • transfusion

    during hospital stay

  • wound problem

    during hospital stay

  • hypotension episode

    during hospital stay

  • functional outcome (ROM, AKS Knee score, WOMAC score, SF-36 score)

    preoperative & postoperative 1 year

Study Arms (2)

subcutaneous group

EXPERIMENTAL

Vacuum drainage is indwelled in subcutaneous layer

Procedure: subcutaneous indwelling

intraarticular group

EXPERIMENTAL

Vacuum drainage is indwelled in intraarticular space

Procedure: intraarticular indwelling

Interventions

vacuum drainage is indwelled in subcutaneous layer

Also known as: hemovac
subcutaneous group

vacuum drainage is indwelled in intraarticular space

Also known as: hemovac
intraarticular group

Eligibility Criteria

Age54 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of primary osteoarthritis
  • primary total knee arthroplasty
  • Signed written informed consent
  • Spinal/epidural anesthesia

You may not qualify if:

  • Patients with coagulation disorders
  • Revision total knee arthroplasty
  • Simultaneous bilateral total knee arthroplasty
  • Diagnosis other than primary osteoarthritis
  • Patients refusing consents

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Joint Reconstruction Center, Seoul National University Bundang Hospital

Seongnam-si, Gyeonggi-do, 463-707, South Korea

Location

MeSH Terms

Conditions

Hemorrhage

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Tae Kyun Kim, MD, PhD

    Joint Recontruction Center, Seoul National University Bundang hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

May 15, 2009

First Posted

June 9, 2009

Study Start

May 1, 2006

Primary Completion

June 1, 2007

Study Completion

June 1, 2007

Last Updated

June 9, 2009

Record last verified: 2009-06

Locations