Review on Minimally Invasive Skin Incision in Vanguard PS Artificial Knee Joint System

Efficacy and Safety of Vanguard PS Knee Joint System Using MIS Technique

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01010828

Enrollment

Registered

2009-11-10

Start date

2009-10-01

Completion date

2012-03-31

Last updated

2019-03-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gonarthrosis Patients Who Need Artificial Knee Joint Total Replacement

Brief summary

This study will show whether Tri-Vector method can ensure more extensive visual field and conduct the precise surgery when compared with Mini Mid-Vastus method by conducting 2 types of skin incision approach, Tri-Vector for 36 patients or Mini-Mid Vastus for 36 patients in Vanguard PS artificial knee joint total replacement observational period before and during surgery.

Interventions

PROCEDUREIncision technique

Tri-Vector Approach retains the majority of 3 vectors of quadriceps.

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Healthy volunteers

Inclusion criteria

* The patients who need artificial knee joint replacement in ordinary medical consultation are selected as the subjects.

Exclusion criteria

* Patients with infections such as osteomyelitis, or sepsis (Because the affected part is lesioned, excellent surgical results cannot be obtained.)

Design outcomes

Primary

Measure	Time frame
Force from femoral and tibial side to retract and bring visual field into view	intraoperatively

Secondary

Measure	Time frame
Incision length	intraoperatively
Visual determination of the extension and flexion gap	intraoperatively

Countries

Japan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026